The safer , easier way to help you pass any IT exams.

 

Exam

Title

:

:

200-125

CCNA Cisco Certified
Network Associate CCNA
(v3.0)

Version : V9.02

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1.Topic 1, Network Fundamentals
Refer to the exhibit.

Host A pings interface S0/0 on router 3. What is the TTL value for that ping?
A. 252
B. 253
C. 254
D. 255
Answer: B
Explanation:
From the CCNA ICND2 Exam book: “Routers decrement the TTL by 1 every time they forward a packet; if
a router decrements the TTL to 0, it throws away the packet. This prevents packets from rotating forever.”
I want to make it clear that before the router forwards a packet, the TTL is still remain the same. For
example in the topology above, pings to S0/1 and S0/0 of Router 2 have the same TTL. The picture below
shows TTL values for each interface of each router and for Host B.
Notice that Host A initializes ICMP packet with a TTL of 255:

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2.Which of the following statements describe the network shown in the graphic? (Choose two.)

A. There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network.
E. There are five collision domains in the network.
F. There are seven collision domains in the network.
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Answer: A,F
Explanation:
Only router can break up broadcast domains so in the exhibit there are 2 broadcast domains: from e0
interface to the left is a broadcast domain and from e1 interface to the right is another broadcast domain
->.
Both router and switch can break up collision domains so there is only 1 collision domain on the left of the
router (because hub doesn’t break up collision domain) and there are 6 collision domains on the right of
the router (1 collision domain from e1 interface to the switch + 5 collision domains for 5 PCs in Production)
->.
3.DRAG DROP.
Refer to the exhibit. Complete this network diagram by dragging the correct device name or description to
the correct location. Not all the names or descriptions will be used.

Answer:

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4.Refer to the exhibit: What will Router1 do when it receives the data frame shown? (Choose three.)

A. Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.
B. Router1 will strip off the source IP address and replace it with the IP address
192.168.40.1.
C. Router1 will strip off the destination MAC address and replace it with the MAC address
0000.0c07.4320.
D. Router1 will strip off the destination IP address and replace it with the IP address of
192.168.40.1.
E. Router1 will forward the data packet out interface FastEthernet0/1.
F. Router1 will forward the data packet out interface FastEthernet0/2.
Answer: A,C,F
Explanation:
Remember, the source and destination MAC changes as each router hop along with the TTL being
decremented but the source and destination IP address remain the same from source to destination.

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Add two more Fast Ethernet interfaces.The safer . DRAG DROP. Drag the correct frame and packet addresses to their place in the table. 6. D. Refer to the exhibit. B. Answer: 6 / 262 . Add a second router to handle the VLAN traffic. easier way to help you pass any IT exams. C. Implement a router-on-a-stick configuration. using the fewest physical interfaces and without decreasing network performance? A.A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. Consider the packets as they leave RouterB interface Fa0/1 towards RouterA.  5. Use a hub to connect the four VLANS with a Fast Ethernet interface on the router. PC_1 is exchanging packets with the FTP server. How can you accomplish this task. Answer: D Explanation: A router on a stick allows you to use sub-interfaces to create multiple logical networks on a single physical interface.

16. easier way to help you pass any IT exams.  Explanation: Source Mac AddressDestination Mac AddressSource IP addressDestination MAC address MAC 0000. B.21.250IP 172. D. The number of broadcast domains would remain the same.34. The number of collision domains would increase.16.) A.3333MAC 0000.0c89. C.Refer to the exhibit.9999 IP 172. What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two. The number of collision domains would decrease. 7 / 262 .7 7. The number of collision domains would remain the same.The safer .0c89.

  E. we have one collision domain more. The number of broadcast domains would increase. F. For example. Only one device in the collision domain may transmit at any one time. we have 5 Collision domains.D Explanation: Basically. An example for Broadcasting would be DHCP Request from a Client PC. easier way to help you pass any IT exams. you generally have one collision domain to a PC. don't allow broadcasts through by default. and the other devices in the domain listen to the network in order to avoid data collisions. if a router stands between all these devices. transport 8 / 262 . 8. So. switch or bridge. Broadcast domains are exactly what they imply: they are network segments that allow broadcasts to be sent across them. all these devices are in ONE Broadcast domain (assuming a single VLAN). you break up collision domains by switching packets bound for other collision domains. In the old days of hubs.The safer . If 5 Devices are connected to a Hub. A Router is used to separate Broadcast-Domains (we could also call them Subnets . we have TWO broadcast domains. so when a broadcast hits a router (or the perimeter of a VLAN). Routers. a broadcast domain can contain multiple collision domains. hub. The simple way to look at it is this way: switches break up collision domains. and the old CSMA/CD would be working overtime to try to get those packets re-sent every time there was a collision on the wire (since Ethernet allows only one host to be transmitting at once without there being a traffic jam).or call them VLANs). A collision domain is sometimes referred to as an Ethernet segment.A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. however. since we mostly use switches to connect computers to the network. These days. this is ONE Collision Domain. hub) will reside in ONE single collision domain. presentation C. if 5 PCs are connected with separate cables to a switch. The Client is asking for a IP Address. With switches. if they are connected with a repeater. What is the highest layer of the protocol stack that the network administrator is using for this operation? A. Collision Domain: Each connection from a single PC to a Layer 2 switch is ONE Collision domain. How to count them? Broadcast Domain: No matter how many hosts or devices are connected together. But only the DHCP Server will answer to the Request. The number of broadcast domains would decrease. Also. session D. while routers (and VLANs) break up collision domains and broadcast domains. Since switches and bridges allow for broadcast traffic to go unswitched. this meant you had a lot of collisions. If this switch is connected to another switch or a router. but the client does not know how to reach the DHCP Server. it doesn't get forwarded. Answer: C. but a collision domain can never have more than one broadcast domain associated with it. Collision Domain: A group of Ethernet or Fast Ethernet devices in a CSMA/CD LAN that are connected by repeaters and compete for access on the network. Broadcast Domain: Broadcasting sends a message to everyone on the local network (subnet). Each device that is connected to a Layer 1 device (repeater. broadcasts can traverse collision domains freely. application B. So the client sends a DHCP Discover packet to EVERY PC in the local subnet (Broadcast). a collision domain is a network segment that allows normal network traffic to flow back and forth.

when there is a carrier C. When the router receives this data.The safer . the MAC address of the router's E0 interface Answer: C.) A. the IP address of the router's E0 interface F.F Explanation: While transferring data through many different networks.Refer to exhibit: Which two destination addresses will be used by Host A to send data to Host C? (Choose two. the IP address of Host C D.In an Ethernet network. the source and destination IP addresses are not changed. when the server grants access Answer: C.D 9 / 262 . when they receive a special token B. 10.) A. Only the source and destination MAC addresses are changed. the MAC address of Switch 1 C. the MAC address of Host C E. 9. easier way to help you pass any IT exams. when they detect no other devices are sending D. internet F. the IP address of Switch 1 B. it replaces the source MAC address with its own E1 interface’s MAC address and replaces the destination MAC address with Host C’s MAC address before sending to Host C. data link Answer: A Explanation: FTP belongs to Application layer and it is also the highest layer of the OSI model. under what two scenarios can devices transmit? (Choose two.  E. So in this case Host A will use the IP address of Host C and the MAC address of E0 interface to send data. when the medium is idle E.

To communicate on different network we have to use Layer 3 addresses (IP addresses) -> B is not correct. to uniquely identify devices at Layer 2 B. to establish a priority system to determine which device gets to transmit first E.E Explanation: Physical addresses or MAC addresses are used to identify devices at layer 2. Layer 3 packet also contains physical address ->. each frame has the same priority to transmit by default ->. MAC addresses are only used to communicate on the same network. Layer 2 frame and Layer 3 packet can be recognized via headers. On Ethernet.) A. to differentiate a Layer 2 frame from a Layer 3 packet D. While this transmission is occurring. All devices need a physical address to identify itself. the signals collide and cannot reach the destination. When there is no traffic detected. 11. it will wait for a specified amount of time before attempting to transmit. If more than one device transmits simultaneously.  Explanation: Ethernet network is a shared environment so all devices have the right to access to the medium. a device will transmit its message. the device continues to listen for traffic or collisions on the LAN. they cannot communicate ->. to allow communication with devices on a different network C. the device returns to its default listening mode.For what two purposes does the Ethernet protocol use physical addresses? (Choose two. 10 / 262 . to allow communication between different devices on the same network F. If a device detects another device is sending. If not. 12. easier way to help you pass any IT exams.The safer .Refer to the exhibit. After the message is sent. to allow detection of a remote device when its physical address is unknown Answer: A.

The safer .  After HostA pings HostB. Exhibit A 11 / 262 . easier way to help you pass any IT exams. which entry will be in the ARP cache of HostA to support this transmission? A.

14. Router C will send a Destination Unreachable message type. a modem converts digital signals from a router to a leased line. E.Host 1 is trying to communicate with Host 2. B. The e0 interface on Router C is down. and Router B that Host 2 cannot be reached.168. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.The safer . F. 13.168.) A.1.6. Router C will send a Router Selection message type. Router C will send a Source Quench message type. D. Exhibit F Answer: A Explanation: Host A knows host B is in another network so it will send the pings to its default gateway 192. Answer: A. A CSU/DSU converts digital signals from a router to a phone line.D Explanation: Host 1 is trying to communicate with Host 2. Which of the following are true? (Choose two. Exhibit D E. Exhibit B C. Router C will send ICMP packets to inform Host 1 that Host 2 cannot be reached. easier way to help you pass any IT exams. Exhibit C D.6. 12 / 262 . Exhibit E F. Host A sends a broadcast frame asking the MAC address of 192. The e0 interface on Router C is down. Router A. B. A CSU/DSU converts analog signals from a router to a leased line. a modem converts analog signals from a router to a leased line. a modem converts analog signals from a router to a phone line. A CSU/DSU converts analog signals from a router to a phone line.What is the difference between a CSU/DSU and a modem? A.1. Router C will use ICMP to inform Router B that Host 2 cannot be reached. Router C will use ICMP to inform Host 1.  B. C. This information (IP and MAC address of the default gateway) is saved in its ARP cache for later use. C.

E. The Network layer (Layer 3) has two key responsibilities. 15. physical Answer: D Explanation: The Data Link layer provides the physical transmission of the data and handles error notification. each called a data frame. network D. basic flow control is implemented by acknowledgment by the receiver of the receipt of data. At which OSI layer did this happen? A. data link E. Packets are created when the network layer adds Layer 3 addresses and control information to a segment. transport C. and routes the data appropriately.) A. B. Protocols Data Unit (PDU) on Datalink layer is called frame. The frame is then discarded. 16. C. the sender waits for this acknowledgment before sending the next part. this layer controls the logical addressing of devices. The transport layer also use flow control to maximize the transfer rate while minimizing the requirements to retransmit. in TCP.Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two. For example. The Data Link layer formats the message into pieces. A CSU/DSU converts digital signals from a router to a leased line. The presentation layer translates bits into voltages for transmission across the physical link. D.  D. and adds a customized header containing the hardware destination and source address. First. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.Which three statements accurately describe Layer 2 Ethernet switches? (Choose three. 13 / 262 . network topology. easier way to help you pass any IT exams. The transport layer divides a data stream into segments and may add reliability and flow control information. Answer: D Explanation: CSU/DSU is used to convert digital signals from a router to a network circuit such as a T1. so that the receiving device can reassemble the data on arrival.D Explanation: The transport layer segments data into smaller pieces for transport. and flow control. Spanning Tree Protocol allows switches to automatically share VLAN information. Second. while a modem is used to convert digital signals over a regular POTS line.) A. Each segment is assigned a sequence number. the network layer determines the best path to a particular destination network.The safer . 17. Answer: A.A receiving host computes the checksum on a frame and determines that the frame is damaged. session B. a modem converts digital signals from a router to a phone line. The data link layer adds physical source and destination addresses and an FCS to the segment. According to this question the frame is damaged and discarded which will happen at the Data Link layer.

Note: Microsegmentation decreases the number of collisions but it increases the number of collision domains. Establishing VLANs increases the number of broadcast domains. Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information.D. All other switches in that broadcast domain will have only one root port. Microsegmentation reduces and can even eliminate collisions because each segment is its own collision domain ->.The safer . Notice that the Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for routing decision. 14 / 262 . each switched segment will contain one root bridge with all its ports in the forwarding state. Each network device gets the full bandwidth of the segment and does not have to share the segment with other devices. easier way to help you pass any IT exams.E Explanation: Microsegmentation is a network design (functionality) where each workstation or device on a network gets its own dedicated segment (collision domain) to the switch. D. If a switch receives a frame for an unknown destination. Answer: B.  B. F. internet C. application B. In a properly functioning network with redundant switched paths.Where does routing occur within the DoD TCP/IP reference model? A. 18. C. network D. E. transport Answer: B Explanation: The picture below shows the comparison between TCP/IP model & OSI model. Microsegmentation decreases the number of collisions on the network. it uses ARP to resolve the address.

hub to host. switch to host. Drag the cable type on the left to the purpose for which it is best suited on the right. Server Group 2: Hub.  19.) Answer: Explanation: To remember which type of cable you should use. hub to server… and we use crossover cable to connect switch to switch. switch to hub. follow these tips: -To connect two serial interfaces of 2 routers we use serial cable – To specify when we use crossover cable or straight-through cable. router to router. Host. (Not all options are used. easier way to help you pass any IT exams.DRAG DROP. we should remember: Group 1: Router. Switch One device in group 1 + One device in group 2: use straight-through cable Two devices in the same group: use crossover cable For example: we use straight-through cable to connect switch to router. host to host…) 20.The safer .Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication? 15 / 262 .

the MAC address of host A Answer: A Explanation: Whereas switches can only examine and forward packets based on the contents of the MAC header.  A.Check the incoming packet for corruption. After receiving the packets. the router must perform the following steps: 1. Host A is communicating with the server. Local devices address packets to the router's MAC address in the MAC header. presentation D. application Answer: E Explanation: This question is to examine the OSI reference model. easier way to help you pass any IT exams.Refer to the graphic. the MAC address of router interface e0 B.The safer . the MAC address of the server network interface D. These network-layer headers contain source and destination network addresses. transport B. session E. the MAC address of router interface e1 C. 21. What will be the source MAC address of the frames received by Host A from the server? A. The router checks the packet for MAC-layer errors. and remove the MAC header. routers can look further into the packet to discover the network for which a packet is destined. network C. The router then strips off the MAC header and examines the network-layer header to determine what to do with the packet. Routers make forwarding decisions based on the packet's network-layer header (such as an IPX header or IP header). The Application layer is responsible for identifying and establishing the availability of the intended communication partner and determining whether sufficient resources for the intended communication exist. 16 / 262 .

DRAG DROP. The router must ensure that the packet has not come too far to be forwarded. (If you want to read the IP routing tables on a Windows 95/98 workstation. easier way to help you pass any IT exams.Examine the age of the packet. 22.The safer . Finally. the router must build a new header. which increments as the packet is forwarded through each router. After determining which direction to forward the packet. The MAC header includes the router's MAC address and the final destination's MAC address or the MAC address of the next router in the path. For example. (Not all options are used. If an IP packet has a TTL value of 1. 15 hops is the maximum number of hops (or routers) that a packet can cross.) Answer: 17 / 262 . the direction to the desired network (the outgoing interface number). If a packet has a hop count of 15. and the distance to those networks. IPX headers contain a hop count.Determine the route to the destination. the IP TTL value decrements as the IP packet is forwarded through each router. IP headers contain a Time to Live (TTL) value. By default.) 4.  2.Build the new MAC header and forward the packet. Match the terms on the left with the appropriate OSI layer on the right. Unlike the IPX hop count. the router builds a new MAC header for the packet. 3. type ROUTE PRINT in the DOS box. the router discards the packet. Routers maintain a routing table that lists available networks. A router cannot decrement the TTL value to 1 and then forward the packet. the router discards the packet.

Which three statements correctly describe Network Device A? (Choose three.128x.255.128.x.E Explanation: If Subnet Mask is 255. must be a Layer 2 device for the PCs to communicate with each other.254. easier way to help you pass any IT exams. With a network wide mask of 255.255.255.255.255. With a network wide mask of 255.D.x.255.x. so the IP Addresses of 2 hosts fall in different subnets so each interface needs an IP an address so that they can communicate each other. each interface does not require an IP address.0.255.255.The safer .0 the 2 specified hosts are in same subnet so are in network address and 18 / 262 .Refer to the exhibit. Answer: B. If Subnet Mask is 255.0.x. B.x.255.) A.255.x.255. each interface does not require an IP address.0.128 the hosts vary from x.255.x. E.  23. D. With a network wide mask of 255.255.128. C.x. must be a Layer 3 device for the PCs to communicate with each other. If Subnet Mask is 255.0 the 2 specified hosts fall in different subnets so they need a Layer 3 device to communicate. With a network wide mask of 255.127 & x.254. each interface does require an IP address on a unique IP subnet.0 .x. With a network wide mask of 255.255.255.

19 / 262 .E Explanation: The idea behind a WAN is to be able to connect two DTE networks together through a DCE network. easier way to help you pass any IT exams. E. 24.  can be accommodated in same Layer 2 domain and can communicate with each other directly using the Layer 2 address. A modem modulates outgoing digital signals from a computer or other digital device to analog signals for a conventional copper twisted pair telephone line and demodulates the incoming analog signal and converts it to a digital signal for the digital device. B. A CSU/DSU terminates an analog local loop. in telephony the local loop (also referred to as a subscriber line) is the physical link or circuit that connects from the demarcation point of the customer premises to the edge of the carrier or telecommunications service provider’s network. A CSU/DSU is used between two digital lines -For more explanation of answer D. D. Therefore a modem terminates an analog local loop is correct.D. A router is commonly considered a DTE device. C. The network’s DCE device (includes CSU/DSU) provides clocking to the DTE-connected interface (the router’s serial interface). A router is commonly considered a DCE device. F. A CSU/DSU terminates a digital local loop. A modem terminates an analog local loop. Answer: A.Which of the following describes the roles of devices in a WAN? (Choose three. A modem terminates a digital local loop.The safer .) A.

first check the priority value. C. This is an Ethernet port operating at full duplex. E. easier way to help you pass any IT exams.  25. This is a 100 Mb/s switch port. This is an Ethernet port operating at half duplex. Drag the correct frame and packet address to their place in the table. Switch D. Consider the packets as they leave RouterA interface Fa0/0 towards RouterB. This is a port on a network interface card in a PC. because it has the lowest MAC address B. what is known about the network interface port? A. The switch having the lowest priority will win the election process. Switch C. 20 / 262 . because it has the highest priority Answer: E Explanation: To elect the root bridge in the LAN. From this statement. Switch A. 26. Refer to the exhibit. Based on the information given. Switch C. Switch A. the switch having the lowest MAC Address will become the root bridge. because it has the lowest priority F.DRAG DROP. Answer: C Explanation: Modern Ethernet networks built with switches and full-duplex connections no longer utilize CSMA/CD.Refer to the exhibit. 27. which switch will be elected root bridge and why? A.The safer . If Priority Value is the same then it checks the MAC Address.A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. PC_1 is sending packets to the FTP server. because it is the most centrally located switch E. because it has the highest MAC address D. In this case. This is a 10 Mb/s switch port. B. because it is the most centrally located switch C. CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater or hub). switch C has the lowest MAC Address so it becomes the root bridge. D. Switch B.

duplex and the trunk encapsulation must be the same on each end.  Answer: 28. duplex Answer: B Explanation: For an etherchannel to come up. 21 / 262 . trunk encapsulation D. LAN Switching Technologies What parameter can be different on ports within an EtherChannel? A. the speed. speed B. DTP negotiation settings C.Topic 2.The safer . easier way to help you pass any IT exams.

thanks to 802. Inexpensive The popularity of VLANs is due to the fact that changes. 1.  29. G. Answer: A. Broadcast storms can be mitigated by increasing the number of broadcast domains. thus reducing their size. When VLAN users move to another physical location. They provide numerous networking benefits and have become popular in the market.1Q trunks. and host reconfigurations is now a thing of the past. A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure. Better administration VLANs facilitate grouping of multiple geographical stations. VLANs make it easier for IT staff to configure new logical groups. D. Each VLAN creates a separate. 5. Broadcast storms can be mitigated by decreasing the number of broadcast domains.The safer . 3. adds. because network configuration can be made at ease when need arises. 4. it helps reduce administrative costs when users are geographically dispersed.C. 22 / 262 . F. 6. thereby encourage better control of multicast traffic as well as broadcast domains. A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure. the network does not have to be configured.) A. Port-based VLANs increase switch-port use efficiency. On the other hand. thus increasing their size. Better management A VLAN typically solve the scalability issues that exist in a large network by breaking the main domain into several VLAN groups or smaller broadcast configurations. A higher level of network security can be reached by separating sensitive data traffic from other network traffic.What are three benefits of implementing VLANs? (Choose three. For instance. They are popularly used to reduce broadcast traffic. because the VLANs all belong to the same broadcast domain. Time-consuming. C. and moves can be attained simply by making necessary configurations on the VLAN port. B. smaller broadcast domain. 2. Segment multiple networks VLANs are typically used to achieve multiple purposes.D Explanation: Benefits of VLANs VLAN is a network structure which allows users to communicate while in different locations by sharing one multicast domain and a single broadcast. Enhances performance A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure. a router is added and workgroups relocated into centralized locations. Improves network security High-security can be positioned in different VLAN groups to ensure that non-members cannot receive their broadcasts. E. readdressing. easier way to help you pass any IT exams.

Switch B .Fa0/0 B. Which three ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three. if the costs happen to be the same.Fa0/0 D.The safer . then compare the BID. They increase the number of broadcast domains while decreasing the size of the broadcast domains. 23 / 262 . which can be completed through comparing root path cost. so we should compare the MAC address. because it has the smallest MAC address. Each link has a DP. Switch A . which can be accomplished by comparing the bridge ID.C. E. we can find DP on each link. D.D Explanation: This question is to check the spanning tree election problem.Fa0/1 Answer: B.Which of the following are benefits of VLANs? (Choose three. Based on the exhibit above. Switch C . B. it is easy to find that SwitchB is the root bridge.) A.  30. First. They increase the size of broadcast domains while decreasing the number of collision domains.Fa0/1 C. First.) A. Select the root port on the non-root bridge. compare the path cost. The three switches in the figure all have the default priority. select the root bridge. Switch A . They increase the size of collision domains. Bridge-id= bridge priority + MAC address.Refer to the topology shown in the exhibit. C. the smallest will be selected. select the Designated Port. Next.Fa0/1 E. They can enhance network security. The DP on the link between SwitchA and SwitchC is SwitchA'Fa0/1. still the smallest will be selected. They allow logical grouping of users by function. The smallest will be selected as the root port. Switch B . easier way to help you pass any IT exams.Fa0/0 F. 31. Switch C .

possible on the same physical segment. To accomplish this.  F. Answer: B. dedicated bandwidth C. easier way to help you pass any IT exams. On Cisco switches. added security B.1Q standard describe? A. switched virtual networks avoid wasting bandwidth.C Explanation: A VLAN is a switched network that is logically segmented on an organizational basis.E Explanation: When using VLAN the number and size of collision domains remain the same ->. or applications rather than on a physical or geographical basis.1Q protocol interconnects VLANs between multiple switches. one switch must send frames to another switch and indicate which VLAN a particular frame belongs to. LAN Segmentation VLANs allow logical network topologies to overlay the physical switched infrastructure such that any arbitrary collection of LAN ports can be combined into an autonomous user group or community of interest.1Q. not by location or geography ->. VLAN pruning Answer: B Explanation: A broadcast domain must sometimes exist on more than one switch in the network.In a switched environment. It is also a big advantage of VLAN ->. VLANs allow to group users by function. VLAN increases the size of broadcast domains but does not decrease the number of collision domains ->. Cisco switches support IEEE 24 / 262 .Which two benefits are provided by creating VLANs? (Choose two. contains collisions Answer: A. and servers. a method of VLAN trunking C. routers. The IEEE 802.) A. a network administrator can define a VLAN topology to span multiple physical devices.The safer . project teams. by functions. the process for root bridge selection E. By containing traffic originating on a particular LAN only to other LANs in the same VLAN. 33. High-security users can be grouped into a VLAN. VLANs increase the number of broadcast domains while decreasing the size of the broadcast domains which increase the utilization of the links. ISL and IEEE 802. provides segmentation D. VLANs help minimize the incorrect configuration of VLANs so it enhances the security of the network ->. allows switches to route traffic between subinterfaces E. a trunk link is created to accomplish this VLAN identification.C. VLANs are useful but they are more complex and need more administration ->. The technology logically segments the network into separate Layer 2 broadcast domains whereby packets are switched between ports designated to be within the same VLAN. the operation of VTP B. an approach to wireless LAN communication D. With 802. Security: VLANs also improve security by isolating groups. and no users outside that VLAN can communicate with them. what does the IEEE 802. They simplify switch administration. 32.1Q are different methods of putting a VLAN identifier in a Layer 2 frame.

RSTP uses the same timer-based process as STP on point-to-point links. B. The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. To have two links to the same collision domain. 25 / 262 .Which three statements about RSTP are true? (Choose three. While STP can take 30 to 50 seconds to transit from a blocking state to a forwarding state. the IEEE with document 802. a network administrator can manually disable a port.Refer to the exhibit. RSTP bridge port roles: *Root port – A forwarding port that is the closest to the root bridge in terms of path cost *Designated port – A forwarding port for every LAN segment *Alternate port – A best alternate path to the root bridge. To overcome this problem. 802.) A.1Q) to be used. RSTP works by adding an alternative port and a backup port compared to STP. RSTP is typically able to respond less than 10 seconds of a physical link failure.D Explanation: One big disadvantage of STP is the low convergence which is very important in switched network.1w introduced an evolution of the Spanning Tree Protocol: Rapid Spanning Tree Protocol (RSTP).1Q for FastEthernet and Gigabit Ethernet interfaces. or forwarding. *Disabled port – Not strictly part of STP. 802. RSTP expands the STP port roles by adding the alternate and backup roles.The safer .Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet? A. E. RSTP also uses the STP proposal-agreement sequence.B. 36.3ad B. in 2001. RSTP significantly reduces topology reconverging time after a link failure.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame as it leaves a trunk port. The backup port applies only when a single switch has two links to the same segment (collision domain). learning. RSTP provides a faster transition to the forwarding state on point-to-point links than STP does. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge. 35. 802. *Backup port – A backup/redundant path to a segment where another bridge port already connects.1w C. which significantly reduces the convergence time after a topology change occurs in the network. RSTP port states are blocking. This path is different than using the root port. easier way to help you pass any IT exams.1Q Answer: D Explanation: Dynamic Trunking Protocol (DTP) is a Cisco proprietary protocol for negotiating trunking on a link between two devices and for negotiating the type of trunking encapsulation (802. 802.1D D. C. the switch must be attached to a hub. discarding.  802. An 802. 34. Answer: A. F. D.

port Gi0/1 F. 37. port fa0/2 E. and because Fa0/12 is inferior to Fa0/1. Switch4 will select the port connected with Fa0/1 (of Switch3) as its root port and block the other port -> Port fa0/11 of Switch4 will be blocked (discarding role). Switch3. port fa0/11 D. A BPDU is superior to another if it has: 1.A lower path cost to the Root 3. port Gi0/2 Answer: C Explanation: In this question. port fa0/1 B.The safer . Switch3. Switch3. easier way to help you pass any IT exams. In this case the port priorities are equal because they use the default value. Switch3. In this specific case. so Switch4 will compare port index values. modified. 1 through 1001 B. the answer is based on the BPDUs it receives from Switch3. port fa0/12 C.Assuming the default switch configuration.A lower Sending Bridge ID 4. which VLAN range can be added. we only care about the Access Layer switches (Switch3 & 4). 2 through 1001 26 / 262 . But how does Switch4 select its blocked port? Well. Switch 3 has a lower bridge ID than Switch 4 (because the MAC of Switch3 is smaller than that of Switch4) so both ports of Switch3 will be in forwarding state. the same path cost to the Root and the same Sending Bridge ID. and removed on a Cisco switch? A.A lower Sending Port ID These four parameters are examined in order.  At the end of an RSTP election process. Switch4. all the BPDUs sent by Switch3 have the same Root Bridge ID. The alternative port will surely belong to Switch4. which are unique to each port on the switch. Switch4 will need to block one of its ports to avoid a bridging loop between the two switches. The only parameter left to select the best one is the Sending Port ID (Port ID = port priority + port index). which access layer switch port will assume the discarding role? A. Switch4.A lower Root Bridge ID 2.

38. VLANs 1002-1005 are default VLANs for FDDI & Token Ring and they can’t be deleted or used for Ethernet. It always exists and cannot be added. easier way to help you pass any IT exams.The safer .  C. 27 / 262 . 2 through 1005 Answer: B Explanation: Explanation VLAN 1 is the default VLAN on Cisco switch. modified or removed.Refer to the exhibit. 1 through 1002 D.

Gi0/2.F Explanation: The question says “no other configuration changes have been made” so we can understand these switches have the same bridge priority. SwitchB. “cost” is calculated based on bandwidth of the link. root C. Below are the cost values you should memorize: SwitchB will choose the interface with lower cost to the root bridge as the root port so we must calculate the cost on interface Gi0/1 & Gi0/2 of SwitchB to the root bridge. Fa0/1. One more thing to notice is that a root bridge always advertises the cost to the root bridge (itself) with an initial value of 0. SwitchA. SwitchA. SwitchD. This can be calculated from the “cost to the root bridge” of each switch because a switch always advertises its cost to the root bridge in its BPDU. easier way to help you pass any IT exams.) A. designated E. Now we come to the most difficult part of this question: SwitchB must have a root port so which port will it choose? To answer this question we need to know about STP cost and port cost. root Answer: A. In general. root D. Because SwitchC is the root bridge so the 2 ports nearest SwitchC on SwitchA (Fa0/1) and SwitchD (Gi0/2) will be root ports. designated B. No other configuration changes have been made. root F. Fa0/2. as well as being configured to run RSTP.B. SwitchB. Gi0/1. Gi0/2. Now let’s have a look at the topology again 28 / 262 .The safer . Fa0/2. The receiving switch will add its local port cost value to the cost in the BPDU. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three. Switch C has lowest MAC address so it will become root bridge and 2 of its ports (Fa0/1 & Fa0/2) will be designated ports.  Each of these four switches has been configured with a hostname. SwitchC. The higher the bandwidth on a link. the lower the value of its cost.

It is rather easy as the MAC address of SwitchA is lower than that of SwitchB so Fa0/2 of SwitchA will be designated port while Gi0/2 of SwitchB will be alternative port. SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8. Now our last task is to identify the port roles of the ports between SwitchA & SwitchB. Below summaries all the port roles of these switches: 29 / 262 . Switch D adds 4 (the cost value of 1Gbps link) and advertises this value (4) to SwitchB. easier way to help you pass any IT exams.  SwitchC advertises its cost to the root bridge with a value of 0. The same process happens for SwitchA and SwitchB learns that it can reach SwitchC via Gi0/2 with a total cost of 23 -> Switch B chooses Gi0/1 as its root port ->.The safer .

30 / 262 .  +DP: Designated Port (forwarding state) +RP: Root Port (forwarding state) +AP: Alternative Port (blocking state) 39.The safer .Refer to the exhibit. easier way to help you pass any IT exams.

The safer . 40. Hosts in the Admin VLAN are able to communicate. those switches need to be configured as trunks on their connected interfaces so that they can pass traffic from multiple VLANs.Based on the network shown in the graphic 31 / 262 . B. Answer: B Explanation: In order for hosts in the same VLAN to communicate with each other over multiple switches. C.  A technician is troubleshooting host connectivity issues on the switches. The port-to-VLAN assignments are identical on the two switches. The link connecting the switches has not been configured as a trunk. A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12. The Fa0/1 port is not operational on one of the switches. E. Port FastEthernet 0/1 needs to be configured as an access link on both switches. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12. What could be the problem? A. easier way to help you pass any IT exams. D. At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate.

  Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem? A. switching loops. routing loops. switching loops. STP Answer: F Explanation: The Spanning-Tree Protocol (STP) prevents loops from being formed when switches or bridges are interconnected via multiple paths. This algorithm guarantees that there is one and only one active path between two network devices. VTP E. STP F. hold down timers B. 32 / 262 . routing loops. easier way to help you pass any IT exams. and then removes the loop by shutting down selected bridge interfaces.The safer . routing loops. switching loops. split horizon C.Refer to the exhibit. split horizon D.1D IEEE algorithm by exchanging BPDU messages with other switches to detect loops. Spanning-Tree Protocol implements the 802. 41.

  A network technician is asked to design a small network with redundancy. 42. learning and forwarding) while STP has 5 port states (blocking. C.Which port state is introduced by Rapid-PVST? A. The router interfaces must be encapsulated with the 802. easier way to help you pass any IT exams.Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950. C. The router will not accept the addressing scheme. The connection between switches should be a trunk. 33 / 262 . Spanning-tree will need to be used. The exhibit represents this design. learning B. This switch has a lower bridge ID for VLAN 2 than the elected designated switch. listening C. D. what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2? A. Answer: C Explanation: Each interface on a router must be in a different network. If two interfaces are in the same network. But PVST+ has only 3 port states (discarding. we must assume that there is a shorter path to the root bridge elsewhere. What conclusions can be made about this design? A. B. So discarding is a new port state in PVST+. the router will not accept it and show error when the administrator assigns it. B. discarding D. 44. This design will function as intended. This switch interface has a higher path cost to the root bridge than another in the topology. forwarding and disabled). D. E. learning. forwarding Answer: C Explanation: PVST+ is based on IEEE802. Answer: C Explanation: Since the port is in the blocked status.1d Spanning Tree. 43. listening.The safer . This switch is running RSTP while the elected designated switch is running 802.1D Spanning Tree Protocol (STP). This switch has more than one interface connected to the root network segment in VLAN 2. with all hosts configured in the same VLAN.1Q protocol.Refer to the exhibit.

The SW1 configuration is shown. interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk Question No : 44 .(Topic 2) B. What is the correct configuration for SW2? A. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q 34 / 262 . easier way to help you pass any IT exams. interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk C.  A network administrator is configuring an EtherChannel between SW1 and SW2.The safer .

“LMI enq sent…” 46.Refer to the exhibit. we can know that the data link protocol used in this network is the Frame Relay protocol.Refer to the exhibit. it was using PagP. PPP Answer: C Explanation: This question is to examine the show int command. Frame Relay D. HDLC C. easier way to help you pass any IT exams. According to the information provided in the exhibit. interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk    Answer: C Explanation: If the etherchannel was configured with mode “auto”. we need to configure the other switch with “desirable” mode. 35 / 262 . ATM B. so. Which WAN protocol is being used? A.The safer . PagP modes: auto | Desirable LACP modes: active | pasive 45.  switchport mode trunk D.

Refer to the exhibit. Answer: D Explanation: The root bridge is determined by the lowest bridge ID. 47. It has a higher bridge ID than the elected root bridge.1d spanning tree. B.The safer . easier way to help you pass any IT exams. C. It has a higher MAC address than the elected root bridge. It has more than one interface that is connected to the root network segment. 36 / 262 . which is higher than the roots priority of 20481. It is running RSTP while the elected root bridge is running 802. and this switch has a bridge ID priority of 32768. D.  Why has this switch not been elected the root bridge for VLAN1? A.

easier way to help you pass any IT exams. source IP address C. source MAC address B.  How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be configured to allow connectivity between all devices? A. the connection between the switches must be a trunk. 48. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20 Answer: B Explanation: IN order for multiple VLANs to cross switches. B. the individual VLANs should not be listed over that trunk interface. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1 D. The “switchport mode trunk” command is all that is needed.The safer . SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk C. destination IP address 37 / 262 . source switch port D. The ports only need to be connected by a crossover cable.What does a Layer 2 switch use to decide where to forward a received frame? A.

show ip interface brief D. you can remain in interface configuration mode and enable other supported interface commands to meet The IP address is assigned to the port channel interface. Optionally. the port-channel 1 interface B. all member interfaces D. not the underlying physical member interfaces.A network administrator creates a layer 3 EtherChannel.) A.The safer . You can configure up to 16 FECs and 1 GEC on the Catalyst 2948G-L3 and up to 4 GECs on the Catalyst 4908G-L3.Which two commands can be used to verify a trunk link configuration status on a given Cisco switch interface? (Choose two. bundling four interfaces into channel group 1. the lowest number member interface Answer: A Explanation: To create an EtherChannel interface and assign its IP address and subnet mask. destination MAC address Answer: F Explanation: When a frame is received.com/c/en/us/td/docs/switches/lan/catalyst2948gand4908g/120_7_w5_15d/configuration/guide/config/ether_ch.  E. the switch looks at the destination hardware address and finds the interface if it is in its MAC address table. destination port address F. On what interface is the IP address configured? A. show interface interface C. easier way to help you pass any IT exams. the frame is broadcast on all interfaces except the one it was received on.cisco. show interface trunk B.html 50. Reference: http://www. Step 2 Router(config-if)# ip address ip-address subnet-mask Assigns an IP address and subnet mask to the EtherChannel interface. show interface vlan 38 / 262 . 49. use the following steps beginning in global configuration mode: Command Purpose Step 1 Router(config)# interface port-channel channel-number Router(config-if)# Creates the EtherChannel interface. Step 3 Router(config-if)# exit Router(config)# Exits this mode. the highest number member interface C. If the address is unknown.

1q trunking 1 Fa0/20 auto n-802.  E. redundant C.Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state? A.1q trunking 1 Fa0/22 auto n-802. When layer 2 is converged.Refer to Exhibit: 39 / 262 .1q trunking 1 Fa0/21 auto n-802.The safer . On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none 51. show interface switchport Answer: A. 52. provisioned D.E Explanation: Example output from these two commands: SW3#show interface trunk Port Mode Encapsulation Status Native vlan Fa0/19 auto n-802.1q trunking 1 Port Vlans allowed on trunk Fa0/19 1-4094 Fa0/20 1-4094 Fa0/21 1-4094 Fa0/22 1-4094 SW1#show interface fast 0/2 switchport Name: Fa0/2 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: down Administrative Trunking Encapsulation: dot1q Negotiation of TrunkinG. root bridge is elected and all port roles (Root. converged B. easier way to help you pass any IT exams. spanned Answer: A Explanation: Spanning Tree Protocol convergence (Layer 2 convergence) happens when bridges and switches have transitioned to either the forwarding or blocking state. Designated and Non-Designated) in all switches are selected.

six D.The safer .168. twelve Answer: A Explanation: Only router can break up broadcast domains but in this exhibit no router is used so there is only 1 broadcast domain.  How many broadcast domains are shown in the graphic assuming only the default VLAN is configured on the switches? A. there are 7 collision domains in this exhibit (6 collision domains between hubs & switches + 1 collision between the two switches).255. one B.0 SwitchB(config-if)# no shutdown 40 / 262 . A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA. 53. For your information.252 255. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.8. Which set of commands is required to accomplish this task? A. easier way to help you pass any IT exams.255. two C.Refer to the exhibit.

and makes no changes. not revolution. RSTP defines no new port states. RSTP cannot operate with PVST+. This default gateway is used to forward traffic originating from the switch only.255.168. 54. Answer: B. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168. B.) A.255. SwitchB(config)# ip route 192. it must have a management IP address on a VLAN on that switch.What are the possible trunking modes for a switch port? (Choose three. rapid spanning tree protocol (IEEE802. transparent B. For intersubnetwork communication to occur.168.0 SwitchB(config-if)# no shutdown C. auto C. learning status. on 41 / 262 . RSTP is 802.168. RSTP not only defines the role of other ports: alternative port and backup port.The safer . Traditionally. referred to as RSTP) will speed up significantly the speed to re-calculate spanning tree. In the exhibit.8.8. RSTP defines new port roles.8.255.8.254 255.1D STP.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.  B.8.0 SwitchB(config-if)# no shutdown D. C.E Explanation: When network topology changes. but also defines status of 3 ports: discarding status.0 SwitchB(config-if)# ip default-gateway 192. easier way to help you pass any IT exams.1D standard evolution.168.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.8.1W.252 255.255. we often use VLAN 1 as the management VLAN (but in fact it is not secure).254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192. forwarding status.255.255.255.252 255.255.8.) A.255.Which two of these statements regarding RSTP are correct? (Choose two.255. RSTP is compatible with the original IEEE 802.1D STP. E.255. SwitchB(config)# ip default-network 192.0 SwitchB(config-if)# no shutdown E.255. not to forward traffic sent by devices connected to the switch.252 255.0 SwitchB(config-if)# no shutdown Answer: C Explanation: To remote access to SwitchB. D.168.168. you must configure at least one default gateway.254 255. RSTP is a proprietary implementation of IEEE 802. 55.168.252 255.8. we can recognize that the Management Workstation is in a different subnet from the SwitchB. It retains most of the parameters. SwitchB(config)# ip default-gateway 192.

interface FastEthernet 0/3 channel-group 2 mode passive switchport trunk encapsulation dot1q switchport mode trunk C. The port becomes a trunk port even if the adjacent port does not agree to the change.C. ✑ Nonegotiate: This mode puts the port into permanent trunk mode. The adjacent port must be configured manually as a trunk port to establish a trunk link. ✑ OFF: This mode puts the port into permanent non-trunk mode and negotiates to convert the link into a non-trunk link. desirable. This is the default mode for Fast and Gigabit Ethernet ports.D Explanation: These are the different types of trunk modes: ✑ ON: This mode puts the port into permanent trunk mode and negotiates to convert the link into a trunk link. forwarding Answer: B. interface FastEthernet 0/3 channel-group 2 mode active switchport trunk encapsulation dot1q switchport mode trunk D. The port becomes a trunk port if the adjacent port is set to on or desirable mode.Refer to the exhibit.The safer . interface FastEthernet 0/3 channel-group 2 mode on switchport trunk encapsulation dot1q switchport mode trunk Answer: B Explanation: 42 / 262 . but does not allow the port to generate Dynamic Trunking Protocol (DTP) frames. The port becomes a non-trunk port even if the adjacent port does not agree to the change. ✑ Desirable: This mode causes the port to actively attempt to convert the link into a trunk link. desirable E. 56. interface FastEthernet 0/3 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk B. ✑ Auto: This mode enables the port to convert the link into a trunk link.  D. or auto mode. client F. What set of commands was configured on interface Fa0/3 to produce the given output? A. easier way to help you pass any IT exams. The port becomes a trunk port if the adjacent port is set to on.

All designated ports are in a forwarding state. This switch must be the root bridge for all VLANs on this switch. which means Point-topoint environment – not a shared media. Which three statements are true? (Choose three. The command “show spanning-tree vlan 30 only shows us information about VLAN 30. we see that all ports are in designated role (forwarding state). Answer: A. Thirty VLANs have been configured on this switch.The safer . B. the configured channel group number was 2 and the mode used was passive. E.C. network D. D.Refer to the exhibit. 58. or forwarding. The bridge priority of this switch is 24606 which is lower than the default value bridge priority 32768. All three interfaces on this switch have the connection type “p2p”. 57.At which layer of the OSI model is RSTP used to prevent loops? A. F.  Based on the output shown. We don’t know how many VLAN exists in this switch ->. The bridge priority is lower than the default value for spanning tree.E Explanation: From the output. The only thing we can specify is this switch is the root bridge for VLAN 3o but we cannot guarantee it is also the root bridge for other VLANs. C. transport Answer: B Explanation: RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data Units 43 / 262 . All interfaces that are shown are on shared media. physical B.) A. The output that is shown is generated at a switch. easier way to help you pass any IT exams. learning. so only choice B is correct. All ports will be in a state of discarding. data link C.

2a00 ->. The MAC address of the root bridge is 0017. The MAC address of the root bridge is 0017. C. not PVST ->.596d. D. E. 60. easier way to help you pass any IT exams.Why will a switch never learn a broadcast address? A. One of the most important fields in BPDUs is the Bridge Priority in which the MAC address is used to elect the Root Bridge -> RSTP operates at Layer 2 – Data Link layer ->.The safer .596d. SwitchA has one Root port and 1 Alternative port so it is not the root bridge. 59. A broadcast frame is never forwarded by a switch. 0017.596d. From the output we learn this switch is running Rapid STP. Fa0/11 is the root port so we can confirm this switch is not the root bridge ->. Answer: C Explanation: Switches dynamically learn MAC addresses based on the source MAC addresses that it sees.1580 is the MAC address of this switch. because not all of the interface roles are designated. it will never learn the broadcast address. D.Refer to the exhibit. 44 / 262 . All of the interface roles of the root bridge are designated. not of the root bridge. Answer: D Explanation: Only non-root bridge can have root port. C.1580.  (BPDUs) between switches. B. SwitchA is not the root bridge. and since a broadcast is never the source. Broadcast addresses use an incorrect format for the switching table. Broadcast frames are never sent to switches. A broadcast address will never be the source address of a frame. B. Which statement is true? A. Broadcasts only use network layer addressing. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20. VLAN 20 is running the Per VLAN Spanning Tree Protocol.

most network engineers prefer to use 802. discarding 45 / 262 . Generally. What is the issue? A. Host B and the switch need to be in the same subnet. However. 802.1q since it is standards based and will interoperate with other vendors.  61. Host B needs to be assigned an IP address in VLAN 1. easier way to help you pass any IT exams. 63. The switch needs an appropriate default gateway assigned. The administrator's attempt to telnet to the switch from host B fails. C. 62.Refer to the exhibit.Which two states are the port states when RSTP has converged? (Choose two. D. ISL E.1q C. Answer: D Explanation: Ping was successful form host B to other hosts because of intervlan routing configured on router.) A.D Explanation: Cisco switches can use two different encapsulation types for trunks. IGP D. E. but pings to the other two hosts are successful.The safer . the industry standard 802. The switch interface connected to the router is down.1q or the Cisco proprietary ISL. But to manage switch via telnet the VLAN32 on the switch needs to be configured interface vlan32 along with ip address and its appropriate default-gateway address. host A is unavailable. The switch interfaces need the appropriate IP addresses assigned. B. Since VLAN1 interface is already configure on switch Host A was able to telnet switch.Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.3u Answer: B.) A. The network administrator normally establishes a Telnet session with the switch from host A. 802. VTP B.

1w discarding state. STP (802.cisco.Which three are valid modes for a switch port used as a VLAN trunk? (Choose three. blocking.  B.The safer . easier way to help you pass any IT exams. transparent B. and listening states are merged into a unique 802. listening C.1D) Port State RSTP (802.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cf a. forwarding 46 / 262 .shtml#states 64. disabled Answer: A. desirable E. The 802. on D. blocking F. forwarding E.) A. auto C.1D disabled.1w) Port State Is Port Included in Active Topology? Is Port Learning MAC Addresses? Disabled Discarding No No 1 Blocking Discarding No No Listening Discarding Yes No Learning Learning Yes Yes Forwarding Forwarding Yes Yes Reference: http://www.D Explanation: There are only three port states left in RSTP that correspond to the three possible operational states. learning D.

or changing hosts on the network.The safer . 32769: 11-22-33-44-55-65 D. VLANs can greatly simplify adding.0000.1111) and B (MAC=0200. This makes network more flexible and scalable. moving. VLANs provide a low-latency internetworking alternative to routed networks. F. not physical location. VLANs allow access to network services based on department. because it can better control layer2 broadcast to improve network security.C. 66. desirable. The port becomes a trunk port if the adjacent port is set to on or desirable mode.What are three advantages of VLANs? (Choose three. 32768: 22-33-44-55-66-77 C.) A. ✑ Nonegotiate: This mode puts the port into permanent trunk mode.will become the target of being the root. The port becomes a trunk port even if the adjacent port does not agree to the change.. Each bridge has a configurable priority number and a MAC Address. This is the default mode for Fast and Gigabit Ethernet ports. for example. Answer: A.0000. D. easier way to help you pass any IT exams. If two bridges have equal priority then the MAC addresses are compared. The Bridge priority default is 32768 and can only be configured in multiples of 4096(Spanning tree uses the 12 bits extended system ID).D Explanation: These are the different types of trunk modes: ✑ ON: This mode puts the port into permanent trunk mode and negotiates to convert the link into a trunk link. as if looking at a real number anything less than 32768. The port becomes a non-trunk port even if the adjacent port does not agree to the change. B. To compare two bridge IDs. the bridge ID contains both numbers combined together . VLANs provide a method of conserving IP addresses in large networks.  Answer: B. the priority is compared first. ✑ OFF: This mode puts the port into permanent non-trunk mode and negotiates to convert the link into a non-trunk link.0000. E.. 32768: 11-22-33-44-55-66 B.2222) both have a 47 / 262 . C. Packet filtering is a function of firewall instead of VLAN.1111). but does not allow the port to generate Dynamic Trunking Protocol (DTP) frames. if switches A (MAC=0200.F Explanation: VLAN technology is often used in practice. The port becomes a trunk port if the adjacent port is set to on. 32769: 22-33-44-55-66-78 Answer: A Explanation: The root bridge of the spanning tree is the bridge with the smallest (lowest) bridge ID. 65. VLANs utilize packet filtering to enhance network security.E. ✑ Desirable: This mode causes the port to actively attempt to convert the link into a trunk link.Which switch would STP choose to become the root bridge in the selection process? A. The adjacent port must be configured manually as a trunk port to establish a trunk link.0200. VLANs establish broadcast domains in switched networks. ✑ Auto: This mode enables the port to convert the link into a trunk link. or auto mode.Bridge priority + MAC (32768.

67. They have the same priority 32768. 32768: 11-22-33-44-55-66 would be the bridge because it has a lower priority and MAC address. Switch3 with a smaller MAC address will provide a designated port for printers.  priority of 32768 then switch A will be selected as the root bridge.Refer to the exhibit. Switch3 D.The safer . Compare their MAC addresses. Switch2 C. In this case. easier way to help you pass any IT exams. Switch1 B. Decide the switch that provides the spanning-tree designated port role between Switch3 and Switch4. Which switch provides the spanning-tree designated port role for the network segment that services the printers? A. 48 / 262 . 68. Switch4 Answer: C Explanation: Printers are connected by hubs.Refer to the exhibit.

C. and these MAC are in different VLAN. FastEthernet0/1 is configured as a trunk link. B.  Which two statements are true of the interfaces on Switch1? (Choose two. D. Thus we know that Fa0/5 is connected to a Hub.The safer .Which three of these statements regarding 802. Fa0/1 is connected to Switch2.1Q trunking are correct? (Choose three. seven MAC addresses correspond to Fa0/1.1Q native VLAN frames are untagged by default. FastEthernet0/5 has statically assigned MAC addresses. However.1Q trunks require full-duplex. 802. E.E Explanation: Carefully observe the information given after command show.1Q trunks can use 10 Mb/s Ethernet interfaces. A hub is connected directly to FastEthernet0/5. B. From the information given by show cdp neighbors we find that there is no Fa0/5 in CDP neighbor. F. 802. Multiple devices are connected directly to FastEthernet0/1. there are multiple MAC addresses from different VLANs attached to the FastEthernet 0/1 interface. 49 / 262 . Interface FastEthernet0/2 has been disabled. Based on the output shown. Answer: B. 802. 69.1Q trunking ports can also be secure ports. 802. easier way to help you pass any IT exams.) A. FastEthernet0/1 is connected to a host with multiple network interface cards. point-to-point connectivity. D. C. From this we know that Fa0/1 is the trunk interface. F0/5 corresponds to two MAC addresses in the same VLAN. Only trunks are able to pass information from devices in multiple VLANs.) A.

70. allowing only VLAN 2 on the destination C. The 802. 802.1Q trunks should have native VLANs that are the same at both ends. VLANs that do not correspond to a unique IP subnet Answer: C 50 / 262 .1Q trunk ports on same trunk link is properly configured.1Q trunk link transmits VLAN information through Ethernet.The safer . easier way to help you pass any IT exams. Answer: A. the same Native VLAN configuration is required on both sides of the link. Native VLAN is the default VLAN configuration of port. Switches can forward Layer 2 frame from Native VLAN on unmarked trunks port. What causes this behavior? A.C.  E. 802.E Explanation: By default. Note for the 802. Receiver switches will transmit all unmarked packets to Native VLAN. it could lead to layer 2 loops. A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2.Refer to the exhibit. native VLAN mismatches D.1Q trunk defined Native VLAN in order to forward unmarked frame.1Q trunk ports between two devices. If the Native VLAN in 802. trunk mode mismatches B.

to provide optimized bandwidth usage.  Explanation: Untagged frames are encapsulated with the native VLAN. Answer: C Explanation: The PVST+ provides Layer 2 load-balancing for the VLAN on which it runs. the switch with the highest IP address D. D. In this case. C.1Q trunk. For example. which switch is elected as the root bridge for the spanning-tree instance of VLAN 1? A.Which statement about VLAN operation on Cisco Catalyst switches is true? A. Because each switch has the same information about the network. C. PVST+ allows the root switch location to be optimized per VLAN. 73.html 72. Reference: http://www. the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2. the switch with the lowest MAC address C. the VLAN ID can be determined from the source MAC address and the MAC address table. this process ensures that the network topology is maintained and optimized per VLAN. This root switch propagates the spanning-tree information associated with that VLAN to all other switches in the network.What is one benefit of PVST+? A.Three switches are connected to one another via trunk ports. Each instance of PVST+ on a VLAN has a single root switch. D. the switch with the highest MAC address B. Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN. When a packet is received from an 802. Assuming the default switch configuration. B. PVST+ supports Layer 3 load balancing without loops. This BID is a combination of a default priority value and the switch's MAC address. if a Cisco switch has the default priority value of 32. the switch with the lowest IP address Answer: B Explanation: Each switch in your network will have a Bridge ID Priority value. Answer: B Explanation: Each VLAN resides in its own broadcast domain.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.The safer . more commonly referred to as a BID. PVST+ automatically selects the root bridge location. so incoming frames with unknown destinations are only transmitted to ports that reside in the same VLAN as the incoming frame.cisco. 71. easier way to help you pass any IT exams. with the priority value listed first.2 _55_se/configuration/guide/swstp.768 and a MAC address of 51 / 262 . Ports between switches should be configured in access mode so that VLANs can span across the ports. B. Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN. The lowest BID will win the election process. PVST+ reduces the CPU cycles for all the switches in the network. You can create different logical topologies by using the VLANs on your network to ensure that all of your links are used but that no one link is oversubscribed.

The safer , easier way to help you pass any IT exams. 

11-22-33-44-55-66, the BID would be 32768:11-22-33-44-55-66. Therefore, if the switch priority is left at
the default, the MAC address is the deciding factor in the root bridge election.
74.Refer to the exhibit.

Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will Switch-1 do with
this data?
A. Switch-1 will drop the data because it does not have an entry for that MAC address.
B. Switch-1 will flood the data out all of its ports except the port from which the data originated.
C. Switch-1 will send an ARP request out all its ports except the port from which the data originated.
D. Switch-1 will forward the data to its default gateway.
Answer: B
Explanation:
This question tests the operating principles of the Layer 2 switch. Check the MAC address table of
Switch1 and find that the MAC address of the host does not exist in the table. Switch1 will flood the data
out all of its ports except the port from which the data originated to determine which port the host is
located in.
Switches work as follows:
✑ Switches learn the MAC addresses of PCs or workstations that are connected to their switch ports by
examining the source address of frames that are received on that port.
✑ Machines may have been removed from a port, turned off, or moved to another
port on the same switch or a different switch.
✑ This could cause confusion in frame forwarding.
✑ The MAC address entry is automatically discarded or aged out after 300 seconds
✑ If there is not MAC address of destination host in MAC table, switch sends
broadcast to all ports except the source to find out the destination host.
In output there is no MAC address of give host so switch floods to all ports except the source port.
75.Which command can be used from a PC to verify the connectivity between hosts that connect through
a switch in the same LAN?
52 / 262

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A. ping address
B. tracert address
C. traceroute address
D. arp address
Answer: A
Explanation:
ICMP pings are used to verify connectivity between two IP hosts. Traceroute is used to verify the router
hop path traffic will take but in this case since the hosts are in the same LAN there will be no router hops
involved.
76.Refer to the exhibit.

Which two statements are true about interVLAN routing in the topology that is shown in the exhibit?
(Choose two.)
A. Host E and host F use the same IP gateway address.
B. Router1 and Switch2 should be connected via a crossover cable.
C. Router1 will not play a role in communications between host A and host D.
D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
E. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.
F. The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports
must be configured using the same encapsulation type.
Answer: D,F
Explanation:
In order for multiple VLANs to connect to a single physical interface on a Cisco router, subinterfaces must
be used, one for each VLAN. This is known as the router on a stick configuration. Also, for any trunk to be
formed, both ends of the trunk must agree on the encapsulation type, so each one must be configured for
802.1q or ISL.

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77.What value is primarily used to determine which port becomes the root port on each nonroot switch in
a spanning-tree topology?
A. path cost
B. lowest port MAC address
C. VTP revision number
D. highest port priority number
E. port priority number and MAC address
Answer: A
Explanation:
The path cost to the root bridge is the most important value to determine which port will become the root
port on each non-root switch. In particular, the port with lowest cost to the root bridge will become root port
(on non-root switch).
78.Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network?
(Choose two.)
A. 802.1d
B. VTP
C. 802.1q
D. STP
E. SAP
Answer: A,D
Explanation:
This question is to examine the STP protocol. STP (802.1d) is used to prevent Layer 2 loops. 802.1q is a
Frame Relay protocol which belongs to VLAN. SAP is a concept of the OSI model.
79.Which two of these are characteristics of the 802.1Q protocol? (Choose two.)
A. It is used exclusively for tagging VLAN frames and does not address network reconvergence following
switched network topology changes.
B. It modifies the 802.3 frame header, and thus requires that the FCS be recomputed.
C. It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.
D. It includes an 8-bit field which specifies the priority of a frame.
E. It is a trunking protocol capable of carrying untagged frames.
Answer: B,E
Explanation:
802.1Q protocol, or Virtual Bridged Local Area Networks protocol, mainly stipulates the realization of the
VLAN. 802.1Q is a standardized relay method that inserts 4 bytes field into the original Ethernet frame
and re-calculate the FCS. 802.1Q frame relay supports two types of frame: marked and non-marked.
Non-marked frame carries no VLAN identification information.
80.Which command enables RSTP on a switch?
A. spanning-tree uplinkfast
B. spanning-tree mode rapid-pvst
C. spanning-tree backbonefast
D. spanning-tree mode mst
54 / 262

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Answer: B
Explanation:
Rapid Spanning Tree Protocol (RSTP) is an enhancement of the original STP 802.1D protocol. The RSTP
802.1w protocol is an IEEE open implementation. Cisco has its own proprietary implementation of RSTP,
that includes the benefits of its Per-VLAN spanning tree protocols, called Rapid-PVST+. To activate the
Rapid-PVST+ protocol:
switch(config)#spanning-tree mode rapid-pvst
81.A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment
existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?
A. More collision domains will be created.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.
Answer: D
Explanation:
Each VLAN creates its own broadcast domain. Since this is a full duplex switch, each port is a separate
collision domain.
82.Refer to the exhibit.

55 / 262

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Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802.1Qcompliant trunk to
another switch. Based on the output shown, what is the reason the trunk does not form, even though the
proper cabling has been attached?
A. VLANs have not been created yet.
B. An IP address must be configured for the port.
C. The port is currently configured for access mode.
D. The correct encapsulation type has not been configured.
E. The “no shutdown” command has not been entered for the port.
Answer: C
Explanation:
According to the output shown the switchport (layer 2 Switching) is enabled and the port is in access
mode. To make a trunk link the port should configured as a trunk port, not an access port, by using the
following command: (Config-if)#switchport mode trunk.

56 / 262

1Q link. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan. Answer: C Explanation: A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802. B. 84.Refer to the exhibit. 802.VLAN 3 is not yet configured on your switch. The command is rejected. On CAT1. An 802. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames. easier way to help you pass any IT exams. 85.dat. 57 / 262 . B.The safer . D. VLAN 10 is chosen as native. The command is accepted and you must configure the VLAN manually.Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. A native VLAN mismatch error message will appear. but on CAT2 the native VLAN is not specified. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.  83.1Q giants frames could saturate the link. C. What will happen in this scenario? A. D. C.1Q trunk is configured between the two switches. The command is accepted and the respective VLAN is added to vlan. Answer: C Explanation: The “switchport access vlan 3” will put that interface as belonging to VLAN 3 while also updated the VLAN database automatically to include VLAN 3. What happens if you set the switchport access vlan 3 command in interface configuration mode? A. The port turns amber.

C. Answer: B Explanation: Configuring the Native VLAN for Untagged Traffic A trunk port configured with 802. The link between the switches needs to be configured as a trunk. It blocks VLAN 999 traffic from passing on the trunk. the connections between the switches must be configured as trunk ports. the switch forwards untagged traffic in the native VLAN 58 / 262 . The link between the switches is configured in the wrong VLAN.  All switch ports are assigned to the correct VLANs. B. 86. Answer: C Explanation: In order to pass traffic from VLANs on different switches. E.The safer . D. By default. but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. what is the most likely problem? A. B. easier way to help you pass any IT exams. VTP is not configured to carry VLAN information between the switches.What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch? A. It designates VLAN 999 as the default for all unknown tagged traffic. Based on the output shown. D. The access link needs to be configured in multiple VLANs. Switch IP addresses must be configured in order for traffic to be forwarded between the switches. C. It designates VLAN 999 for untagged traffic.1Q tagging can receive both tagged and untagged traffic. It creates a VLAN 999 interface.

Bandwidth B. Routing Technologies Which parameter or parameters are used to calculate OSPF cost in Cisco routers? A. Bandwidth. 87. Given this output for SwitchC. MTU.Topic 3. Answer: C Explanation: Here we can see that this port is configured for full duplex. Check the duplex mode for SwitchC's fa0/1 port.The safer . Delay.  configured for the port. and MTU D. Delay. what should the network administrator's next action be? A. Check the trunk encapsulation mode for SwitchA's fa0/2 port. easier way to help you pass any IT exams. Check the trunk encapsulation mode for SwitchC's fa0/1 port. A mismatched trunk encapsulation would not result in input errors and CRC errors. Bandwidth. C. so the next step would be to check the duplex setting of the port on the other switch. B. The native VLAN is VLAN 1 by default. and Load Answer: A Explanation: The well-known formula to calculate OSPF cost is Cost = 108 / Bandwidth 59 / 262 . Check the duplex mode for SwitchA's fa0/2 port. Reliability. D. 88.Refer to the exhibit. Bandwidth and Delay C.

meaning connections from your router so the answer should be A. C.Which command shows your active Telnet connections? A. easier way to help you pass any IT exams. The router will forward packets from R3 to R1.The safer . show session C. 90. show users D.  89. Based on the exhibited routing table.Refer to the exhibit. The router will forward packets from R3 to R1 to R2.1? A.10. The router will forward packets from R3 to R2 to R1 AND from R3 to R1. B. how will packets from a host within the 192. The question asks about “your active Telnet connections”. show cdp neigbors B. Answer: C 60 / 262 .168.192/26 LAN be forwarded to 192.10. show vty logins Answer: B Explanation: The “show users” shows telnet/ssh connections to your router while “show sessions” shows telnet/ssh connections from your router (to other devices). The router will forward packets from R3 to R2 to R1. D.168.

168. B. This shows that VLAN1 is shut down. More VLANs will need to be created for this switch. Answer: B Explanation: Notice the line.10. 92.9 &192. Remote access management of this switch will not be possible without configuration change.168. show running-config D.0/30 is learned via 2 equal-cost paths (192. As FastEthernet0/12 will be the last to come up. show boot C. it will be blocked by STP.5) -> traffic to this network will be load-balancing. Which of these statements correctly describes the state of the switch once the boot process has been completed? A. show version Answer: D Explanation: The “show version” command can be used to show the last method to powercycle (reset) a router. you have to assume that no other VLAN interface has been configured with an IP Address.Refer to the exhibit. C. 61 / 262 . easier way to help you pass any IT exams.  Explanation: From the routing table we learn that network 192. show reload B.The safer .10.168.10.Which command reveals the last method used to powercycle a router? A. which says “Interface VLAN1. D. changed state to administratively down”. Hence remote management of this switch is not possible unless VLAN1 is brought back up. The switch will need a different IOS code in order to support VLANs and STP. Since VLAN1 is the only interface shown in the output. 91.

Refer to the exhibit.  93. easier way to help you pass any IT exams.The safer . When running EIGRP. what is required for RouterA to exchange routing updates with RouterC? 62 / 262 .

63 / 262 . The following information must be matched so as to create neighborhood. C. one for each connected network Answer: A Explanation: This question is to examine the understanding of the interaction between EIGRP routers.535. RAM B. HTTP server E.The safer .D Explanation: Multiple OSPF processes can be configured on a router using multiple process ID’s.E Explanation: The following locations can be configured as a source for the IOS image: 1.+ ROM (used if no other source is found) 4. K value. All OSPF routers in an area must have the same process ID. B. TFTP server F. easier way to help you pass any IT exams. Different process identifiers can be used to run multiple OSPF processes D.) Router(config)# router ospf 1 A. Loopback interfaces must be configured so a DR is elected C. The valid process ID’s are shown below: Edge-B(config)#router ospf ? < 1-65535> Process ID 95.) A. E. 94. NVRAM C.(Please read the explanation of Question 4 for more information) 96. flash memory D. Hello packets are sent to each neighbor to determine the processor identifier. AS numbers must be changed to match on all the routers B. EIGRP routers to establish. Telnet server Answer: C. Answer: C. The process number can be any number from 1 to 65.Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two. Only one process number can be used on the same router. must match the following information: AS Number.  A. Router B needs to have two network statements.+ TFTP server 3.+ Flash (the default location) 2.Refer to the exhibit.Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two. The no auto-summary command is needed on Router A and Router C D.

0/22 route includes 10.0/28 is subnetted.0/24. stored in the topology table Answer: C Explanation: 64 / 262 .0/30 is subnetted.1.0/24 networks only.2. 6w0d.4.0.2.4 [90/20514560] via 10. 10.2.2.0.0/22 is subnetted.4. stored in the topology table D. 1 subnets D 10.0. Serial0/1 B. 1 subnets D 10.0 [90/20514560] via 10.0. a primary route. 1 subnets D 10.4. 1 subnets D 10.  The Lakeside Company has the internetwork in the exhibit.0.2. 10. Which partial routing table entry in the Central router represents a route summary that represents the LANs in Phoenix but no additional subnets? A. 10. Serial0/1 E.0.0.0 [90/20514560] via 10.2.0.2.0.The safer .2.0.0. Serial0/1 Answer: D Explanation: The 10. 10.4. 10. 10. Serial0/1 C.0. a primary route.0.0.0.0/24.0. The administrator would like to reduce the size of the routing table on the Central router. easier way to help you pass any IT exams.0 [90/20514560] via 10.2.0.0/28 is subnetted.0 [90/20514560] via 10.0/22 is subnetted. Serial0/1 D.0/24 and 10.2.0. 10.2.0.0.4. stored in the routing table B. 1 subnets D 10.2.4. 10.Which type of EIGRP route entry describes a feasible successor? A. stored in the routing table C.3. 6w0d. Serial0/1 F. 6w0d.0.0. a backup route.2. 6w0d.0. 1 subnets D 10.2. 97.0 [90/20514560] via 10.2.4.4.0.4.4. a backup route. 6w0d. 6w0d.0/30 is subnetted.2.

which is known as the Successor.1116000x8000023A 0x0092B31 10.0.D Explanation: r120#show ip ospf data OSPF Router with ID (10.  EIGRP uses the Neighbor Table to list adjacent routers. a command that is set once and affects the entire router B.11310. The Feasible Successor is a backup route to a destination which is kept in the Topology Table.Which two statements about the OSPF Router ID are true? (Choose two. Also the router will chose the highest loopback interface as its OSPF router ID (if available).120) (Process ID 1) Next. It should be the same on all routers in an OSPF routing instance.0. 100. who are the other routers in our area? Router Link States (Area 1) Link IDADV RouterAgeSeq#ChecksumLink count 10.0.What is a global command? A. Answer: A.) A.11210.0. 98. a command that is implemented in all foreign and domestic IOS versions C. 65 / 262 . a command that is available in every release of IOS.12010. The configuration of a global command affects the entire router.Refer to the exhibit. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination.0. An example of a global command is one used for the hostname of the router.0.The safer .0.0. B.0.11212460x80000234 0x009CAC1 10.0. It is created using the MAC Address of the loopback interface. By default. The router automatically chooses the IP address of a loopback as the OSPF Router ID. the lowest IP address on the router becomes the OSPF Router ID. a command that can be entered in any configuration mode Answer: A Explanation: When you enter global configuration mode and enter a command. easier way to help you pass any IT exams.0. It identifies the source of a Type 1 LSA. regardless of the version or deployment status E.11110.0.0.1201520x800002400x0046CB1 We can see OSPF Router ID will be used as source of Type 1 LSA.0.0. C.0.0. D. a command that is universal in application and supports all protocols D. it is applied to the running configuration file that is currently running in ram.0.1131480x8000022C0x0043993 10. E. 99.

Drag each definition on the left to the matching term on the right. Since the C-router already knows how to get to all three networks.19.The safer . These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172.255 area 0 C.0 B. The hosts in the VLANs have been configured with the appropriate default gateway. These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172. Answer: D Explanation: Since all the same router (C-router) is the default gateway for all three VLANs.0.3.0.19.0. The C-router will have knowledge of all three networks since they will appear as directly connected in the routing table.0.0 0. no routing protocols need to be configured.DRAG DROP.  C-router is to be used as a "router-on-a-stick" to route between the VLANs. easier way to help you pass any IT exams. 66 / 262 . All the interfaces have been properly configured and IP routing is operational.0 D. No further routing configuration is required. 101.19. What is true about this configuration? A. These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172. all traffic destined to a different VLA will be sent to the C-router.

0 network cannot reach the server located on the 172.The safer .0 network. what is the cause of the failure? A. IP routing is not enabled. and was able to ping the server. easier way to help you pass any IT exams. Based on the output of the show ip route command and the topology shown in the graphic.31. The network has not fully converged.22.  Answer: 102. 67 / 262 . The network administrator connected to router Coffee via the console port.5.17. issued the show ip route command.Users on the 172. B.

0.255. ip route 0.2 B. D.255.0 172.0.0. The neighbor relationship table is not correctly updated.0.252 128.0. A static route will be established on the Manchester router to direct traffic toward the Internet over the most direct path available. easier way to help you pass any IT exams.0 255.1 E.0.0 172.0 128.100.107. F.0. IP route 0.0.2. ip route 0.0 0.0.0 255. The FastEthernet interface on Coffee is disabled.Refer to the exhibit.The safer .  C.19.0.0.1. all traffic towards Internet that originates from workstations should forward to Router R1.0 network.22.16. A static route is configured incorrectly.0.2 103.255 172.255. E.255. You should generally only use default routing on stub networks—those with only one exit path out of the network.2 F. 68 / 262 .22.2 to reach server located on 172.100. The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s.18. According to exhibit.0 0.0. The correct IP address will be 172.0.0.0 0.18.0 172.255. The routing table on Coffee has not updated.1 D.0 172.22.0 255. ip route 0. What configuration on the Manchester router will establish a route toward the Internet for traffic that originates from workstations on the Manchester LAN? A. Syntax for default route is: ip route <Remote_Network> <Netmask> <Next_Hop_Address>.0.0.5.100.0 0.16.0.2 Answer: E Explanation: We use default routing to send packets with a remote destination network not in the routing table to the next-hop router.1 C.255.16.16.31. ip route 0.1.107.0.0.0. ip route 0.100. Answer: C Explanation: The default route or the static route was configured with incorrect next-hop ip address 172.0. ip route 0.

168.1 D.The safer . Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login B. which of the following commands should be issued on Switch1 to correct this problem? A. Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full 69 / 262 .3 255.255. Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192. Given the information in the graphic and assuming that the router and Switch2 are configured properly.The network administrator cannot connect to Switch1 over a Telnet session.0 C.24. Switch1(config)# ip default-gateway 192.168. easier way to help you pass any IT exams.  104.24. although the hosts attached to Switch1 can ping the interface Fa0/0 of the router.255.

0 255. a router goes through several state changes before it becomes fully adjacent with its neighbor. section 10. Loading. router ospf network 10.255 C.0. The hierarchical approach is used to achieve the following: •Rapid convergence because of link and/or switch failures •Deterministic traffic recovery •Scalable and manageable routing hierarchy. to speed up convergence D. Init.Why do large OSPF networks use a hierarchical design? (Choose three. reduced routing overhead. we know that connectivity. Exstart. Speed.html 107.1.When a router undergoes the exchange protocol within OSPF.) A.0 /24 to area 0? A. exstart state > loading state > exchange state > full state B.1.1. 105. Attached to that backbone via area border routers (ABRs) are a number of secondary tier areas. exstart state > full state > loading state > exchange state D. the ip default-gateway command must be used. etc. to reduce the complexity of router configuration F. router ospf 1 70 / 262 .0 area 0 B.   106.1. Switch1(config)# interface fa0/1 Switch1(config-if)# switchport mode trunk Answer: C Explanation: Since we know hosts can reach the router through the switch. to confine network instability to single areas of the network E.D Explanation: OSPF implements a two-tier hierarchical routing model that uses a core or backbone tier known as area zero (0).com/c/en/us/support/docs/ip/open-shortest-path-firstospf/13685-13. to lower costs by replacing routers with distribution layer switches Answer: B. to reduce routing overhead C.What command sequence will configure a router to run OSPF and add network 10.cisco. in what order does it pass through each state? A.  Switch1(config-if)# speed 100 E. are good.255.1. The states are (in order) Down. exstart state > exchange state > loading state > full state C. Exchange. Reference: http://www.0. However. router ospf area 0 network 10.255. easier way to help you pass any IT exams.1.1.The safer . for the switch itself to reach networks outside the local one.C. to decrease latency by increasing bandwidth B. loading state > exchange state > full state > exstart state Answer: B Explanation: When OSPF adjacency is formed. Attempt. and Full. 2-Way. duplex. Those states are defined in the OSPF RFC 2328.0 0.

0.3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface.The safer .255. router ospf area 0 network 10.0 0.0. router ospf process-id 4.1.0 area 0 F. ✑Enter your password if prompted.0 0.  network 10.1.255 Answer: C Explanation: ✑ Enabling OSPF SUMMARY STEPS 1. enable 2.255.129.0 255. end DETAILED STEPS Command or Action Purpose Step 1 Enable Example: Device> enable Enables privileged EXEC mode.0.0.1.0. easier way to help you pass any IT exams.255 area 0 E. network ip-address wildcard-mask area area-id 5.1.255 area 0 D.0.0 0.0.1. router ospf network 10.168.0. Step 2 Configure terminal Example: Device# configure terminal Enters global configuration mode. configure terminal 3. router ospf 1 network 10. Step 3 router ospf process-id Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode.1. Step 4 Network ip-address wildcard-mask area area-id Example: Device(config-router)# network 192.1. Step 5 End Example: Device(config-router)# end 71 / 262 .16 0.1.

10. meaning it will be preferred over all dynamic routing protocols.  Exits router configuration mode and returns to privileged EXEC mode. What is needed to allow communication between the VLANs? A. you need to increase the AD of the static route so that it is higher than the dynamic routing protocol.On a corporate network.168. Next. it will choose the route that has the longest match. link bandwidth D.10.168.168. First. meaning the most specific route.10. it will choose the best one based on a couple of things.0/24 from multiple sources.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/124t/iro-12-4t-book/iro-cfg. a directly connected interface with an address of 192.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673 108.0/16 E. easier way to help you pass any IT exams.cisco. but they are unable to communicate with hosts on different VLANs. from all the /24 routes it will choose the one with the lowest administrative distance. hop count B.10. 72 / 262 . Directly connected routes have an AD of 1 so this will be the route chosen. So.0/24 D. a switch with a trunk link that is configured between the switches Answer: A Explanation: Different VLANs can't communicate with each other. administrative distance C.0. What will the router consider the most reliable information about the path to that network? A. Reference: http://www. 110. link delay E. a static route to network 192. a router with an IP address on the physical interface connected to the switch C.10.0/24 C.168.Which parameter would you tune to affect the selection of a static route as a backup. they can communicate with the help of Layer3 router.168.10.168. a default route with a next hop address of 192. when a dynamic protocol is also being used? A.0/24 with a local serial interface configured as the next hop Answer: A Explanation: When there is more than one way to reach a destination. If you want to have the dynamic routing protocol used and have the static route be used only as a backup. in this case the /24 routes will be chosen over the /16 routes. an OSPF update for network 192. a RIP update for network 192.A router receives information about network 192.The safer . a static route to network 192. hosts on the same VLAN can communicate with each other. a router with subinterfaces configured on the physical interface that is connected to the switch B.1 F. link cost Answer: B Explanation: By default the administrative distance of a static route is 1.254/24 B. 109.168. a switch with an access link that is configured between the switches D.

OSPF uses flooding to exchange link-state updates between routers.1.2 Local(config)# ip route 10. The attached devices are unaware of any VLAN structure.x. It increases routing overhead on the network. F.y. C. only hosts that are members of the same VLAN can communicate.255.) A.The safer . Variable Length Subnet Masks (VLSM). establishing Trunking links to achieve communications of devices which belong to different VLANs. Routing has been configured on the local router with these commands: Local(config)# ip route 0.0 0.1Q Virtual LAN RouterA(config-subif)#encapsulation dot1Q or isl VLAN ID RouterA(config-subif)# ip address x. When using VLANs in networks that have multiple interconnected switches.DRAG DROP. you need to use VLAN trunking between the switches.0. Areas are introduced to put a boundary on the explosion of link-state updates.y 111. It supports VLSM.Which statements describe the routing protocol OSPF? (Choose three. 73 / 262 . With VLAN trunking. It is used to route between autonomous systems.3.0 255. route summarization. Any change in routing information is flooded to all routers in the network. then make the sub-interface on the router to connect to the switch. End user devices connect to switch ports that provide simple connectivity to a single VLAN each. B.0. It confines network instability to one area of the network. Answer: A. Here is the example of configuring the router for inter-vlan communication RouterA(config)#int f0/0.0.0.1 RouterA(config-subif)#encapsulation ? dot1Q IEEE 802.3 Drag each destination IP address on the left to its correct next hop address on the right.x y. Flooding and calculation of the Dijkstra algorithm on a router is limited to changes within an area.C.y. E. which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. 112. easier way to help you pass any IT exams.0.0 192.0 255. By default.E Explanation: The OSPF protocol is based on link-state technology. you need a router or a layer 3 switch.168.0.1. It allows extensive control of routing updates.2.255.0 192.1. and so forth. It is simpler to configure than RIP v2.x. To change this and allow inter-VLAN communication. D. the switches tag each frame sent between switches so that the receiving switch knows to what VLAN the frame belongs.168.0.168.1 Local(config)# ip route 10.255.0 192.  Hence. it is needed to connect a router to a switch. OSPF has introduced new concepts such as authentication of routing updates.

easier way to help you pass any IT exams.The safer .  Answer: Explanation: 74 / 262 .

the router will choose to use the routing protocol which has lowest Administrative Distance. the EIGRP route C. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. all three routes E.The safer . This is called the “longest match” rule. the OSPF and RIPv2 routes Answer: B Explanation: When one route is advertised by more than one routing protocol. The last is from RIPv2 and has a metric of 4. The Administrative Distances of popular routing protocols are listed below: 75 / 262 .A router has learned three possible routes that could be used to reach a destination network. easier way to help you pass any IT exams. Which route or routes will the router install in the routing table? A. the route with the most bits in the mask set to “1 will be chosen to route packet. 113.  If we have many entries matching for next hop ip address then the router will choose the one with most specific path to send the packet. the RIPv2 route D. the OSPF route B.

It requires the use of ARP.  114. Answer: B. Also running the new IOS may require more RAM than the older one so we should check the available RAM too. what should be checked on the router. We can check both with the “show version” command. show running-config Answer: B. show version E. C. Interfaces can have multiple IPv6 addresses ✑OSPFv3 uses multicast addresses FF02::5 (all OSPF routers). It supports up to 2 instances of OSPFv3 over a common link. easier way to help you pass any IT exams.The safer . OSPFv3 can be used for IPv6-only or both protocols ✑OSPFv3 introduces new LSA types ✑OSPFv3 has different packet format ✑OSPFv3 uses different flooding scope bits (U/S2/S1) ✑OSPFv3 adjacencies are formed over link-local IPv6 communications ✑OSPFv3 runs per-link rather than per-subnet ✑OSPFv3 supports multiple instances on a single link.What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two. It can support multiple IPv6 subnets on a single link. the version of the bootstrap software present on the router D. B. D. It routes over links rather than over networks. the amount of available flash and RAM memory C. and which command should be used to gather this information? (Choose two. show processes F.D Explanation: Here is a list of the differences between OSPFv2 and OSPFv3: ✑They use different address families (OSPFv2 is for IPv4-only. upgraded version of the IOS.) A. 115.Before installing a new. FF02::6 (all OSPF DRs) 76 / 262 . the amount of available ROM B.D Explanation: When upgrading a new version of the IOS we need to copy the IOS to the Flash so first we have to check if the Flash has enough memory or not.) A.

Refer to the exhibit.networkworld. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter. a static. easier way to help you pass any IT exams. Answer: C. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter. B.0. D.0/16 to CentralRouter. 77 / 262 . E. The network administrator requires easy configuration options and minimal routing protocol traffic. default route on CentralRouter that directs traffic to InternetRouter.html 116.The safer . a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter.16. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two. a static route on InternetRouter to direct traffic that is destined for 172.) A.Refer to the exhibit. C. F. 117. still a 32-bit number Reference: http://www.F Explanation: The use of static routes will provide the necessary information for connectivity while producing no routing traffic overhead. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter.com/article/2225270/cisco-subnet/ospfv3-for-ipv4-andipv6.  ✑OSPFv3 Neighbor Authentication done with IPsec (AH) ✑OSPFv2 Router ID (RID) must be manually configured.

It configures the virtual terminal lines with the password 030752180500. It configures SSH globally for all logins. It allows seven failed login attempts before the VTY lines are temporarily shutdown. B.shtml 118.  What is the effect of the configuration that is shown? A. Reference: www.10.192/26 network to a host on the LAN attached to router R1? A. If you want to prevent non-SSH connections. What path will packets take from a host on the 192. C.cisco. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. The path of the packets will be R3 to R1 to R2. Straight (non-SSH) Telnets are refused.The safer . C. It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet. Answer: D Explanation: Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices.Refer to the exhibit. add the “transport input ssh” command under the lines to limit the router to SSH connections only. The path of the packets will be R3 to R2 to R1. It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports. The path of the packets will be R3 to R1.com/warp/public/707/ssh. E. D.168. The company uses EIGRP as the routing protocol. easier way to help you pass any IT exams. B. Answer: D 78 / 262 . D. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2.

The safer .64 will be routed from R3 -> R1 -> LAN on R1. 120.168. The hello and dead interval timers are not set to the same values on R1 and R3.) A.9. So as to make the two routers become neighbors. which is an IP address in 192.168.168. 79 / 262 . From the output of the routing table of R3 we learn this network can be reach via 192.  Explanation: Host on the LAN attached to router R1 belongs to 192. Answer: D. so OSPF will not establish neighbor adjacency with R3. each router must be matched with the following items: The area ID and its types. R1 and R3 are configured in different areas.168. Hello and failure time interval timer. R1 and R2 are the DR and BDR. What are possible reasons for this problem? (Choose two. All of the routers need to be configured for backbone Area 1. D.8/30 network (the network between R1 & R3) -> packets destined for 192.10. OSPF Password (Optional).10.10. 119. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. B. easier way to help you pass any IT exams.64/26 subnet. R1 is unable to establish an OSPF neighbor relationship with R3. C. E.Refer to the exhibit. F.10. EIGRP is also configured on these routers with a lower administrative distance.Refer to the graphic.F Explanation: This question is to examine the conditions for OSPF to create neighborhood.

The configuration register is set to 0x2102. B. The boot system flash command is missing from the configuration. Why is flash memory erased prior to upgrading the IOS image from the TFTP server? A. D. The configuration register is set to 0x2100. Note: In this case. The router cannot verify that the Cisco IOS image currently in flash is valid. the flash has enough space to copy a new IOS without deleting the current one.The safer . So everything configured was deleted. B. Answer: A Explanation: The “System Configuration Dialog” appears only when no startup configuration file is found. it must be the only IOS image in flash. 121. The router is configured with the boot system startup command. C. D. The network administrator failed to save the configuration. Answer: C Explanation: During the copy process.  A network administrator configures a new router and enters the copy startup-config running-config command on the router. Flash memory on Cisco routers can contain only a single IOS image. the router asked “Erasing flash before copying? [confirm]” and the administrator confirmed (by pressing Enter) so the flash was deleted. The current IOS is deleted just because the administrator wants to do so. When the router starts. Note: We can tell the router to ignore the start-up configuration on the next reload by setting the register to 0×2142. In order for the router to use the new image as the default. The network administrator has made a mistake because the command “copy startup-config running-config” will copy the startup config (which is empty) over the running config (which is configured by the administrator). Erasing current flash content is requested during the copy dialog. This will make the “System Configuration Dialog” appear at the next reload. If the flash does not have enough space you will see an error message like this: 80 / 262 . easier way to help you pass any IT exams. The network administrator powers down the router and sets it up at a remote location. What is the cause of the problem? A. it enters the system configuration dialog as shown. C.Refer to the exhibit. E.

subinterface encapsulation identifiers that match VLAN tags E.1 And Interface Serial 1 of Router Brevard has 192. one subinterface per VLAN F.l23-16a.168. easier way to help you pass any IT exams.167/ c1600-k8sy-mz.2.Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated. but they are unable to communicate. subinterface numbering that matches VLAN tags Answer: B. well written article on this operation can be found here: http://www. A short. identify the fault on the Brevard router that is causing the lack of connectivity. 81 / 262 .Refer to the exhibit. incompatible IP address B.  %Error copying tftp://192.D. These are from different network.E Explanation: This scenario is commonly called a router on a stick. The Atlanta router is known to have the correct configuration.com/RouterOnAStickCCNACertificationExamTutorial.thebryantadvantage. link reliability too low F. IPCP closed Answer: D Explanation: Because Interface Serial 0 of Atlanta Router has 192. A. insufficient bandwidth C.10.Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three.168.2.The safer . a management domain for each subinterface D. incorrect subnet mask D.) A.168.bin (Not enough space on device) 122. Given the partial configurations. incompatible encapsulation E. one physical interface for each subinterface B. one IP network or subnetwork for each subinterface C.11.htm 124. 123.

1. what is the operational status of the interfaces of R2 as indicated by the command output shown? A.2 Answer: D Explanation: If a router-id is not configured manually in the OSPF routing process the router will automatically 82 / 262 .1.2. 1.1. easier way to help you pass any IT exams. Serial0/0 is down because it has been disabled using the “shutdown” command.  Assuming that the entire network topology is shown. Answer: C Explanation: The output shown shows normal operational status of the router’s interfaces. If the router Cisco returns the given output and has not had its router ID set manually. D.1 B. C. what value will OSPF use as its router ID? A. 192.168.1 D. B. The operational status of the interfaces cannot be determined from the output shown. 2. The interfaces are functioning correctly.1 C.16.1.The safer . One interface has a problem.2. Two interfaces have problems. 172.Refer to the exhibit. 125.

use the cdp run command in global configuration mode. show version Answer: B Explanation: The “show process” (in fact. the full command is “show processes”) command gives us lots of information about each process but in fact it is not easy to read.Which command would you use on a Cisco router to verify the Layer 3 path to a host? A. If more than one loopback interfaces are configured. show system D. the router will compare the IP addresses of each of the interfaces and choose the highest IP address from the loopbacks. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path). on the other hand.The safer . telnet address D. In order to reenable CDP. 83 / 262 . Below shows the output of this command (some next pages are omitted). traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. show process C. only computes the final round-trip times from the destination point. If you prefer not to use the CDP capability. enable cdp B. 126. cdp run D. ssh address Answer: B Explanation: In computing. Ping. Traceroute proceeds unless all (three) sent packets are lost more than twice.Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices? A. 128. easier way to help you pass any IT exams.  configure a router-id determined from the highest IP address of a logical interface (loopback interface) or the highest IP address of an active interface.Which command displays CPU utilization? A. show protocols B. cdp enable C. 127. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default. not global. traceroute address C. disable it with the no cdp run command. then the connection is lost and the route cannot be evaluated. tracert address B. The “cdp enable” command is an interface command. the sum of the mean times in each hop indicates the total time spent to establish the connection.

and 72 hours are clearly shown: 84 / 262 . easier way to help you pass any IT exams.  A more friendly way to check the CPU utilization is the command “show processes cpu history”. in which the total CPU usage on the router over a period of time: one minute. one hour.The safer .

The safer , easier way to help you pass any IT exams. 

+The Y-axis of the graph is the CPU utilization.
+The X-axis of the graph is the increment within the period displayed in the graph. For example, from the
last graph (last 72 hours) we learn that the highest CPU utilization within 72 hours is 37% about six hours
ago.
129.Refer to the exhibit.

The technician wants to upload a new IOS in the router while keeping the existing IOS. What is the
maximum size of an IOS file that could be loaded if the original IOS is also kept in flash?
A. 3 MB
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The safer , easier way to help you pass any IT exams. 

B. 4 MB
C. 5 MB
D. 7 MB
E. 8 MB
Answer: B
Explanation:
In this example, there are a total of 8 MB, but 3.8 are being used already, so another file as large as 4MB
can be loaded in addition to the original file.
130.What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.)
A. It requires the use of ARP.
B. It can support multiple IPv6 subnets on a single link.
C. It supports up to 2 instances of OSPFv3 over a common link.
D. It routes over links rather than over networks.
Answer: B,D
131.Refer to the exhibit.

For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two.)
A. Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.
B. Router1 is acting as a TFTP server for other routers.
C. Router1 cannot locate a valid IOS image in flash memory.
D. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server.
E. Cisco routers will first attempt to load an image from TFTP for management purposes.
Answer: A,C
Explanation:
The loading sequence of CISCO IOS is as follows:
Booting up the router and locating the Cisco IOS
1. POST (power on self-test)
2. Bootstrap code executed
3. Check Configuration Register value (NVRAM) which can be modified using the configregister
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The safer , easier way to help you pass any IT exams. 

command
0 = ROM Monitor mode
1 = ROM IOS
2 - 15 = startup-config in NVRAM
4. Startup-config filE. Check for boot system commands (NVRAM)
If boot system commands in startup-config
a. Run boot system commands in order they appear in startup-config to locate the IOS
b. [If boot system commands fail, use default fallback sequence to locate the IOS (Flash,
TFTP, ROM)?]
If no boot system commands in startup-config use the default fallback sequence in locating
the IOS:
a. Flash (sequential)
b. TFTP server (netboot)
c. ROM (partial IOS) or keep retrying TFTP depending upon router model
5. If IOS is loaded, but there is no startup-config file, the router will use the default fallback
sequence for locating the IOS and then it will enter setup mode or the setup dialogue.
132.What two things will a router do when running a distance vector routing protocol? (Choose two.)
A. Send periodic updates regardless of topology changes.
B. Send entire routing table to all routers in the routing domain.
C. Use the shortest-path algorithm to the determine best path.
D. Update the routing table based on updates from their neighbors.
E. Maintain the topology of the entire network in its database.
Answer: A,D
Explanation:
Distance means how far and Vector means in which direction. Distance Vector routing protocols pass
periodic copies of routing table to neighbor routers and accumulate distance vectors. In distance vector
routing protocols, routers discover the best path to destination from each neighbor. The routing updates
proceed step by step from router to router.
133.Refer to the exhibit.

Given the output for this command, if the router ID has not been manually set, what router ID will OSPF
use for this router?
A. 10.1.1.2
B. 10.154.154.1
C. 172.16.5.1
D. 192.168.5.3
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Answer: C
Explanation:
The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the
router ID.
134.Which statement describes the process ID that is used to run OSPF on a router?
A. It is globally significant and is used to represent the AS number.
B. It is locally significant and is used to identify an instance of the OSPF database.
C. It is globally significant and is used to identify OSPF stub areas.
D. It is locally significant and must be the same throughout an area.
Answer: B
Explanation:
The Process ID for OSPF on a router is only locally significant and you can use the same number on each
router, or each router can have a different number-it just doesn't matter. The numbers you can use are
from 1 to 65,535. Don't get this confused with area numbers, which can be from 0 to 4.2 billion.
135.Which command is used to display the collection of OSPF link states?
A. show ip ospf link-state
B. show ip ospf lsa database
C. show ip ospf neighbors
D. show ip ospf database
Answer: D
Explanation:
The “show ip ospf database” command displays the link states. Here is an example:
Here is the lsa database on R2.
R2#show ip ospf database OSPF Router with ID (2.2.2.2) (Process ID 1) Router Link States (Area 0) Link
ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 793 0x80000003 0x004F85 2
10.4.4.4 10.4.4.4 776 0x80000004 0x005643 1
111.111.111.111 111.111.111.111 755 0x80000005 0x0059CA 2
133.133.133.133 133.133.133.133 775 0x80000005 0x00B5B1 2
Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum
10.1.1.1 111.111.111.111 794 0x80000001 0x001E8B
10.2.2.3 133.133.133.133 812 0x80000001 0x004BA9
10.4.4.1 111.111.111.111 755 0x80000001 0x007F16
10.4.4.3 133.133.133.133 775 0x80000001 0x00C31F
136.Which characteristics are representatives of a link-state routing protocol? (Choose three.)
A. provides common view of entire topology
B. exchanges routing tables with neighbors
C. calculates shortest path
D. utilizes event-triggered updates
E. utilizes frequent periodic updates
Answer: A,C,D
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Explanation:
Each of routers running link-state routing protocol learns paths to all the destinations in its “area” so we
can say although it is a bit unclear. Link-state routing protocols generate routing updates only (not the
whole routing table) when a change occurs in the network topology so Link-state routing protocol like
OSPF uses Dijkstra algorithm to calculate the shortest path >. Unlike Distance vector routing protocol
(which utilizes frequent periodic updates), link-state routing protocol utilizes event-triggered updates (only
sends update when a change occurs) ->.
137.Refer to the exhibit.

What can be determined about the router from the console output?
A. No configuration file was found in NVRAM.
B. No configuration file was found in flash.
C. No configuration file was found in the PCMCIA card.
D. Configuration file is normal and will load in 15 seconds.
Answer: A
Explanation:
When no startup configuration file is found in NVRAM, the System Configuration Dialog will appear to ask
if we want to enter the initial configuration dialog or not.
138.A network administrator needs to allow only one Telnet connection to a router. For anyone viewing
the configuration and issuing the show run command, the password for Telnet access should be
encrypted. Which set of commands will accomplish this task?
A. service password-encryption
access-list 1 permit 192.168.1.0 0.0.0.255
line vty 0 4
login
password cisco
access-class 1
B. enable password secret
line vty 0
login
password cisco
C. service password-encryption
line vty 1
login
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It checks the configuration register. LSAs from other routers D. Incorrect answer: command. B.C Explanation: Neighbor discovery is the first step in getting a link state environment up and running.Bootstrap starts IOS load . easier way to help you pass any IT exams. a Hello protocol is used for this step. In turn. Answer: A Explanation: Default (normal) Boot Sequence Power on Router .What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two. the routers may begin sending out LSAs.) A. D.A Cisco router is booting and has just completed the POST process.Refer to the exhibit. service password-encryption line vty 0 4 login password cisco Answer: C Explanation: Only one VTY connection is allowed which is exactly what's requested. In keeping with the friendly neighbor terminology. It is now ready to find and load an IOS image. beacons received on point-to-point links E.The safer . each received LSA is copied and forwarded to every neighbor except the one that sent the LSA. After the adjacencies are established.check the startup-config file in NVRAM for boot-system commands . What function does the router perform next? A.Router does POST . routing tables received from other link-state routers F.Check configuration register to see what mode the router should boot up in (usually 0x2102 to read startupconfig in NVRAM / or 0x2142 to start in "setup-mode") . It inspects the configuration file in NVRAM for boot instructions. It loads the first image file in flash memory. C.load IOS from Flash.  password cisco D. SAP messages sent by other routers C. TTL packets from designated routers Answer: A. As the term flooding implies. line vty0 4 would enable all 5 vty connections. 140. 90 / 262 . hello packets B. the advertisements are sent to every neighbor. 139. 141. It attempts to boot from a TFTP server. The protocol will define a Hello packet format and a procedure for exchanging the packets and processing the information the packets contain.

There is a mismatch in encapsulation types.DRAG DROP. easier way to help you pass any IT exams. The interface is not receiving any keepalives. line protocol down"? A. You can bring up an interface having administratively down interface using no shutdown command. The interface needs to be configured as a DTE device.The safer . There is no encapsulation type configured. (Not all options are used. Drag the Cisco default administrative distance to the appropriate routing protocol or route. Answer: D Explanation: Interfaces can be enabled or disabled with shutdown/no shutdown command. If you interface is down. D. F. E. The wrong type of cable is connected to the interface.  What is the reason that the interface status is "administratively down. The interface has been configured with the shutdown command. C.) Answer: 91 / 262 . B. it will display administratively down status. 142.

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143.What are two benefits of using a single OSPF area network design? (Choose two.)
A. It is less CPU intensive for routers in the single area.
B. It reduces the types of LSAs that are generated.
C. It removes the need for virtual links.
D. It increases LSA response times.
E. It reduces the number of required OSPF neighbor adjacencies.
Answer: B,C
Explanation:
OSPF uses a LSDB (link state database) and fills this with LSAs (link state advertisement). The link types
are as follows:

•LSA Type 1: Router LSA
•LSA Type 2: Network LSA
•LSA Type 3: Summary LSA
•LSA Type 4: Summary ASBR LSA
•LSA Type 5: Autonomous system external LSA
•LSA Type 6: Multicast OSPF LSA
•LSA Type 7: Not-so-stubby area LSA
•LSA Type 8: External attribute LSA for BGP
If all routers are in the same area, then many of these LSA types (Summary ASBR LSA, external LSA, etc)
will not be used and will not be generated by any router.
All areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the
backbone area (Area 0). In some cases, where this is not possible, you can use a virtual link to connect to
the backbone through a non-backbone area. You can also use virtual links to connect two parts of a
partitioned backbone through a non-backbone area. The area through which you configure the virtual link,
known as a transit area, must have full routing information. The transit area cannot be a stub area. Virtual
links are not ideal and should really only be used for temporary network solutions or migrations. However,
if all locations are in a single OSPF area this is not needed.
144.A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP
addresses of the devices with which the router has established adjacency. The retransmit interval and the
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queue counts for the adjacent routers also need to be checked. What command will display the required
information?
A. Router# show ip eigrp adjacency
B. Router# show ip eigrp topology
C. Router# show ip eigrp interfaces
D. Router# show ip eigrp neighbors
Answer: D
Explanation:
Below is an example of the show ip eigrp neighbors command. The retransmit interval (Smooth Round
Trip Timer – SRTT) and the queue counts (Q count, which shows the number of queued EIGRP packets)
for the adjacent routers are listed:

145.Refer to the graphic.

A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands will
accomplish this? (Choose two.)
A. HFD(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
B. HFD(config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
C. HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0
D. HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
E. HFD(config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
F. HFD(config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0
Answer: C,D
Explanation:
The simple syntax of static route: ip route destination-network-address subnet-mask
{next-hop-IP-address | exit-interface}
+destination-network-address: destination network address of the remote network
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+subnet mask: subnet mask of the destination network
+next-hop-IP-address: the IP address of the receiving interface on the next-hop router
+exit-interface: the local interface of this router where the packets will go out In the statement “ip route
10.5.6.0 255.255.255.0 fa0/0:
+10.5.6.0 255.255.255.0: the destination network +fa0/0: the exit-interface
146.Refer to the exhibit.

The two exhibited devices are the only Cisco devices on the network. The serial network between the two
devices has a mask of 255.255.255.252. Given the output that is shown, what three statements are true
of these devices? (Choose three.)
A. The Manchester serial address is 10.1.1.1.
B. The Manchester serial address is 10.1.1.2.
C. The London router is a Cisco 2610.
D. The Manchester router is a Cisco 2610.
E. The CDP information was received on port Serial0/0 of the Manchester router.
F. The CDP information was sent by port Serial0/0 of the London router.
Answer: A,C,E
Explanation:
From the output, we learn that the IP address of the neighbor router is 10.1.1.2 and the question stated
that the subnet mask of the network between two routers is
255.255.255.252. Therefore there are only 2 available hosts in this network (22 – 2 = 2). So we can
deduce the ip address (of the serial interface) of Manchester router is 10.1.1.1 ->. The platform of the
neighbor router is cisco 2610, as shown in the output ->. Maybe the most difficult choice of this question is
the answer E or F. Please notice that “Interface” refers to the local port on the local router, in this case it is
the port of Manchester router, and “Port ID (outgoing port)” refers to the port on the neighbor router.
147.Which two are advantages of static routing when compared to dynamic routing? (Choose two.)
A. Configuration complexity decreases as network size increases.
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B. Security increases because only the network administrator may change the routing table.
C. Route summarization is computed automatically by the router.
D. Routing tables adapt automatically to topology changes.
E. An efficient algorithm is used to build routing tables, using automatic updates.
F. Routing updates are automatically sent to neighbors.
G. Routing traffic load is reduced when used in stub network links.
Answer: B,G
Explanation:
Since static routing is a manual process, it can be argued that it is more secure (and more prone to
human errors) since the network administrator will need to make changes to the routing table directly. Also,
in stub networks where there is only a single uplink connection, the load is reduced as stub routers just
need a single static default route, instead of many routes that all have the same next hop IP address.
148.What is the default maximum number of equal-cost paths that can be placed into the routing table of
a Cisco OSPF router?
A. 2
B. 8
C. 16
D. unlimited
Answer: B
Explanation:
maximum-paths (OSPF)
To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support, use
the maximum-paths command.
Syntax Description
maximum
Maximum number of parallel routes that OSPF can install in a routing table. The range is from 1 to 16
routes.
Command Default
8 paths
149.If IP routing is enabled, which two commands set the gateway of last resort to the default gateway?
(Choose two.)
A. ip default-gateway 0.0.0.0
B. ip route 172.16.2.1 0.0.0.0 0.0.0.0
C. ip default-network 0.0.0.0
D. ip default-route 0.0.0.0 0.0.0.0 172.16.2.1
E. ip route 0.0.0.0 0.0.0.0 172.16.2.1
Answer: C,E
Explanation:
Both the “ip default-network” and “ip route 0.0.0.0 0.0.0.0 (next hop)” commands can be used to set the
default gateway in a Cisco router.
150.Refer to the exhibit.
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A network associate has configured OSPF with the command:
City(config-router)# network 192.168.12.64 0.0.0.63 area 0
After completing the configuration, the associate discovers that not all the interfaces are participating in
OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this
configuration statement? (Choose three.)
A. FastEthernet0 /0
B. FastEthernet0 /1
C. Serial0/0
D. Serial0/1.102
E. Serial0/1.103
F. Serial0/1.104
Answer: B,C,D
Explanation:
The “network 192.168.12.64 0.0.0.63 equals to network 192.168.12.64/26. This network has:
+Increment: 64 (/26= 1111 1111.1111 1111.1111 1111.1100 0000)
+Network address: 192.168.12.64
+Broadcast address: 192.168.12.127 Therefore all interfaces in the range of this network will join OSPF.
151.Which commands are required to properly configure a router to run OSPF and to add network
192.168.16.0/24 to OSPF area 0? (Choose two.)
A. Router(config)# router ospf 0
B. Router(config)# router ospf 1
C. Router(config)# router ospf area 0
D. Router(config-router)# network 192.168.16.0 0.0.0.255 0
E. Router(config-router)# network 192.168.16.0 0.0.0.255 area 0
F. Router(config-router)# network 192.168.16.0 255.255.255.0 area 0
Answer: B,E
Explanation:
In the router ospf command, the ranges from 1 to 65535 so o is an invalid number -> but To configure
OSPF, we need a wildcard in the “network” statement, not a subnet mask. We also need to assgin an area
to this process ->.
152.Refer to the exhibit.
96 / 262

As a result. B.The safer . easier way to help you pass any IT exams.  When running OSPF. The loopback addresses are on different subnets. Only the enable password will be encrypted. 97 / 262 . It will encrypt all current and future passwords. If the service password-encryption is used. Dead interval and AREA numbers 153. C. It will encrypt the secret password and remove the enable secret password from the configuration. The values of the dead timers on the routers are different. B. router A & B must have the same Hello interval. E. 154. D. D. Answer: E Explanation: Enable vty. Use the show run command to show most passwords in clear text. all the passwords are encrypted. AUX passwords are configured on the Cisco device. Route summarization is enabled on both routers. Answer: B Explanation: To form an adjacency (become neighbor). The process identifier on router A is different than the process identifier on router B. the security of device access is improved. console. Only the enable secret password will be encrypted.Refer to the exhibit.What is the effect of using the service password-encryption command? A. what would cause router A not to form an adjacency with router B? A. Only passwords configured after the command has been entered will be encrypted. C.

252 Answer: C Explanation: The binary version of 20 is 10100.25.252 C. 192.1111 1111.255. The mask is 255. Therefore the subnet mask is /28 (=1111 1111.255. Router# service password-encryption B.28 255.255.240 F.255.25.0 255.168.255. EIGRP learned 4 routes and we need to find out the summary of them: +192.25. Note: From the output above.Which command encrypts all plaintext passwords? A. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24).255.168.240 B.255. 192.255.168.240.25.16 255. The subnet mask is /28.25.168.  Which address and mask combination represents a summary of the routes learned by EIGRP? A.255.25.25. 192.25.240.168.168.The safer .255.255.11110000) = 255.168.28 255. 98 / 262 .252 E.168.16 255.255.255. Router(config)# service password-encryption D. The binary version of 28 is 11100.25.28 -> The increment should bE.255. The binary version of 24 is 11000.240 D. 192.1111 1111. Router# password-encryption Answer: C Explanation: Command The “service password-encryption” command allows you to encrypt all passwords on your router so they cannot be easily guessed from your running-config.20 +192.168.255.168.25.255.16 255.0 255. 192. It is meant to prevent someone from looking over your shoulder and seeing the password. The binary version of 16 is 10000.16 +192. 155. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation. Router(config)# password-encryption C. 192.168.24 +192.25.255.240. So. easier way to help you pass any IT exams.255. the best answer should be 192.

10.255.0 C. This is configured in global configuration mode.The safer . Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192.0 Router(config-if)# no shut down B.1 255. Router(config)# router eigrp 100 Router(config-router)# network 192.255.1 255.168.255.0 Question No : 156 .10.1 255.Refer to the exhibit. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192.255. 156.1. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.255.1 99 / 262 .  that is all. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E.168.(Topic 3) Router(config-router)# network 192.0 D.1.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192.168.168.20.) A. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F.168.0 Router(config)# interface fastethernet 0/0.20. What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.168.255. easier way to help you pass any IT exams.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.

0. The network wildcard mask is configured improperly. where each subinterface is assigned a VLAN and IP address for each VLAN.Refer to the exhibit. E. The network subnet mask is configured improperly.1. C. 10.1.0 255.1.1.0. 157.64/27 subnets but the “longest prefix match” algorithm will choose the most specific subnet mask -> the prefix “/29 will be chosen to route the packet.1.The safer .64/29 & 10.3.5. The AS is configured improperly. 10.2 B.A network administrator is trying to add a new router into an established OSPF network.5.2 C. the connection to the router need to be configured as a trunk using the switchport mode trunk command and it will need a default gateway for VLAN 1. On the switch. F. 158. Therefore the next-hop should be 10. 10.0 area 0 A. where will the router send a packet destined for 10.1.1. easier way to help you pass any IT exams.0. The process id is configured improperly. The network number is configured improperly.5. The OSPF area is configured improperly.5.1.65 belongs to 10.E Explanation: The router will need to use subinterfaces.1.0.64/28. what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.3. D.65? A.4.4 Answer: C Explanation: The destination IP address 10.3 ->.3 D. 10.5. The networks attached to the new router do not appear in the routing tables of the other OSPF routers.1.  Answer: B. Given the information in the partial configuration shown below.2.1. Answer: C 100 / 262 . According to the routing table. 10. B.

network all-interfaces area 0 Answer: A Explanation: Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP address in area 0.The safer . Configure a dynamic routing protocol on London to advertise all routes to Manchester.0 area 0 C. the correct syntax would have been “network 10.0. will include all interfaces into area 0? A.255 0.0.255.0.0.0/22 to 10.255.1. place it in area 0.255. network 255.255 area 0 B. 101 / 262 . easier way to help you pass any IT exams.1. network 0.com/articles/article.0 0. What is the simplest way to accomplish this? A.0.0.0.255.255.0.255 area 0 dictates that you do not care (255.255.0.  Explanation: When configuring OSPF. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router.0.asp?p=26919&seqNum=3 160.255. B.0. when configured.1.255.255) what the IP address is.0 255.0 255.0 255. C.0.” 159.255.1.255 area 0. The network command network 0. D.0.0 0.16.Refer to the exhibit. Configure a static default route on London with a next hop of 10. the mask used for the network statement is a wildcard mask similar to an access list.1.0. E. but if an IP address is enabled on any interface. In this specific example.ciscopress.255 area 0 Reference: http://www.0 area 0 D.What OSPF command. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester. network 0.255. Configure a static route on London to direct all traffic destined for 172.0. Example 3-1 Configuring OSPF in a Single Area router ospf 1 network 0. The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations.0.0.2.

Answer: E Explanation: This static route will allow for communication to the Manchester workstations and it is better to use this more specific route than a default route as traffic destined to the Internet will then not go out the London Internet connection. B. E. The maximum number of bytes that can traverse this interface per second is 1500. What is the meaning of the output MTU 1500 bytes? A.What is the default administrative distance of OSPF? A. The maximum packet size that can traverse this interface is 1500 bytes. Administrative distance defines the reliability of a routing protocol. 100 C. The maximum segment size that can traverse this interface is 1500 bytes. 161.The safer . Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value.Refer to the exhibit. 110 D. The minimum segment size that can traverse this interface is 1500 bytes. 162. Answer: E Explanation: The Maximum Transmission Unit (MTU) defines the maximum Layer 3 packet (in bytes) that can be transmitted out the interface. Configure Manchester to advertise a static default route to London. 90 B. easier way to help you pass any IT exams. C. D.  F. 120 Answer: C Explanation: Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols. F. Default Distance Value Table This table lists the administrative distance default values of the protocols that Cisco supports: Route Source Default Distance Values Connected interface 0 102 / 262 . The minimum packet size that can traverse this interface is 1500 bytes. The maximum frame size that can traverse this interface is 1500 bytes.

WAN Technologies Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms? A.The safer . easier way to help you pass any IT exams.Topic 4.25 D. PPP also has built-in security mechanisms.  Static route 1 Enhanced Interior Gateway Routing Protocol (EIGRP) summary route 5 External Border Gateway Protocol (BGP) 20 Internal EIGRP 90 IGRP 100 OSPF 110 Intermediate System-to-Intermediate System (IS-IS) 115 Routing Information Protocol (RIP) 120 Exterior Gateway Protocol (EGP) 140 On Demand Routing (ODR) 160 External EIGRP 170 Internal BGP 200 Unknown* 255 163. 103 / 262 . X. 164. including IP. such as Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). Frame Relay Answer: B Explanation: PPP: Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits.Refer to the exhibit. PPP was designed to work with several network layer protocols. HDLC B. PPP C.

168.168.1 /24 DLCI 28: 192. 165. each connection needs to be in a separate subnet.1 /24 DLCI 99: 192.2 /24 DLCI 28: 192.168.11.168.10.168. DLCI 16: 192. which IP addresses would be assigned to the interfaces with point-to-point PVCs? A. Similarly.11.10.10.1 /24 DLCI 17: 192. DLCI 16: 192.168.168.168. the R3-R1 connection would also be in the same subnet.168.  In the Frame Relay network.10.168. DLCI 16: 192. but it must be in a different one than the R2-R1 connection.168.10.10.The safer .10.1 /24 DLCI 17: 192.10.2 /24 DLCI 99: 192.10.3 /24 DLCI 28: 192.3 /24 B. What is the meaning of the term dynamic as displayed in the output of the show frame 104 / 262 .1 /24 DLCI 99: 192. DLCI 16: 192. easier way to help you pass any IT exams.168.13.10.1 /24 DLCI 17: 192. The R2-R1 connection (DLCI 16 to 99) would have each router within the same subnet.168.Refer to the exhibit.1 /24 DLCI 99: 192.10.1 /24 DLCI 17: 192.2 /24 D.11.1 /24 C.168.168.12.168.4 /24 Answer: C Explanation: With point to point PVC’s.2 /24 DLCI 28: 192.

Inverse ARP requests a next-hop protocol address for each active PVC. Inverse ARP works much the same way Address Resolution Protocol (ARP) works on a LAN. Answer: E Explanation: Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism for dynamic DLCI to Layer 3 address maps. Encapsulate the physical interface with multipoint PPP. Therefore. Which of the following procedures are required to accomplish this task? (Choose three.3. These include reduced cost. F.) A. E. no static address mapping is required. C. 167. C.It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit. and increased scalability as s single WAN link can be used to connect to all locations in a VPN. The Serial0/0 interface is passing traffic. increased security E. the router knows the Layer 2 address which is the DLCI. Configure static Frame Relay map entries for each subinterface network. B.3. better throughput C.E Explanation: IPsec offer a number of advantages over point to point WAN links.) A. broadband incompatibility D. Once the requesting router receives an Inverse ARP response. increased security since all traffic is encrypted. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud. With Inverse ARP.D. reduced latency Answer: A. reduced cost B. the device knows the Layer 3 IP address and needs to know the remote data link MAC address. 166. particularly when multiple locations are involved. However. where as a point to point link would need to be provisioned to each location.C. with ARP. Disable split horizon to prevent routing loops between the subinterface networks. Create the virtual interfaces with the interface command.What are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links? (Choose three. The Serial0/0 interface acquired the IP address of 172. it updates its DLCI-to-Layer 3 address mapping table. D.16.1 from a DHCP server. scalability F. Dynamic address mapping is enabled by default for all protocols enabled on a physical interface. but needs to know the remote Layer 3 IP address. easier way to help you pass any IT exams. Remove the IP address from the physical interface. B. When using dynamic address mapping.D 105 / 262 .The safer . If the Frame Relay environment supports LMI autosensing and Inverse ARP. The mapping between DLCI 100 and the end station IP address 172. The DLCI 100 was dynamically allocated by the router. dynamic address mapping takes place automatically.  relay map command shown? A. Answer: A. E. D.16. Configure each subinterface with its own IP address.1 was learned through Inverse ARP.

They require a unique subnet within a routing domain. Below is the output of this command (notice Cisco is the default encapsulation so it is not listed here. Each subinterface will then have its own IP address.What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two. show frame-relay lmi B. 170. They emulate leased lines. just press Enter to use it). with each subinterface configured for each PVC. show interfaces serial Answer: B Explanation: When connecting Cisco devices with non-Cisco devices.Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link? A. Q9333-A Annex A D. Each subinterface requires a unique IP address/subnet. show frame-relay pvc D. HDLC Answer: A Explanation: Cisco supports two Frame Relay encapsulation types: the Cisco encapsulation and the IETF Frame Relay encapsulation. They create split-horizon issues. IETF B. 106 / 262 .  Explanation: For multiple PVC’s on a single interface. Remember. C.The safer . Answer: B. 168. They require the use of NBMA options when using OSPF.Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers? A.C Explanation: Subinterfaces are used for point to point frame relay connections.) A. D. You can test with your Cisco router when typing the command Router(config-if)#encapsulation frame-relay ? on a WAN link. you must use IETF4 encapsulation on both devices. you cannot assign multiple interfaces in a router that belong to the same IP subnet. B. you must use subinterfaces. which is in conformance with RFC 1490 and RFC 2427. 169. easier way to help you pass any IT exams. Check the encapsulation type on the Cisco device with the show frame-relay map exec command. and no IP address will be assigned to the main interface. E. ANSI Annex D C. The former is often used to connect two Cisco routers while the latter is used to connect a Cisco router to a non-Cisco router. They are ideal for full-mesh topologies. show frame-relay map C. emulating virtual point to point leased lines.

0x6430). SLIP D.Which two statistics appear in show frame-relay map output? (Choose two. active Serial0/0 (up): ip 10.4. callback.4. Layer 5 Answer: A Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. NCP B. respectively. CISCO. status defined.. and multilink options.The safer . dynamic. Layer 2 B. dynamic. It is a data link layer protocol (layer 2 in the OSI model) 173.  Note: Three LMI options are supported by Cisco routers are ansi.4 dlci 401(0x191.4. status defined.4. HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type. the IP address of the local router Answer: B. LPC negotiates link and PPP parameters to dynamically configure the data link layer of a PPP connection. easier way to help you pass any IT exams. and ITU Q933-A (Annex A) LMI types. the number of BECN packets that are received by the router B. Cisco. active Serial0/0 (up): ip 10. and Q933a.3 dlci 403(0x193. status defined.4. static. LCP E.) A. ISDN C.D Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. Layer 3 C. broadcast.At which layer of the OSI model does PPP perform? A. active 172. Layer 4 D. the value of the local DLCI C. Cisco. 171. DLCI Answer: D Explanation: The PPP Link Control Protocol (LCP) is documented in RFC 1661..1 dlci 401(0x191. 107 / 262 .4.0x6410). compression of PPP header fields.0x6410). the authentication protocol. the status of the PVC that is configured on the router E. broadcast.Which PPP subprotocol negotiates authentication options? A. They represent the ANSI Annex D. the number of FECN packets that are received by the router D. Common LCP options include the PPP MRU. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers.

The network administrator suspects that the link is overloaded. is operating normally. E. The PVC is not configured on the local switch. but the connection to the remote router is not available +DELETED: the PVC is not present and no LMI information is being received from the Frame Relay switch +STATIC: the Local Management Interface (LMI) mechanism on the interface is disabled (by using the “no keepalive” command). and is waiting for interesting traffic to trigger a call to the remote router.  174. The DCE device creates and sends the report to the DTE devices. D. is operating normally. but there is a problem on the remote end of the PVC. This status is rarely seen so it is ignored in some books.Users have been complaining that their Frame Relay connection to the corporate site is very slow. The PVC is configured correctly and is operating normally. There are 4 statuses: +ACTIVE: the PVC is operational and can transmit data +INACTIVE: the connection from the local router to the switch is working. Answer: D Explanation: The PVC STATUS displays the status of the PVC. The PVC is configured correctly. and is no longer actively seeking the address of the remote router. Based on the partial output of the Router# show frame relay pvc command shown in the graphic. which 108 / 262 . easier way to help you pass any IT exams. B. The PVC is configured correctly. C. What does this mean? A. but no data packets have been detected for more than five minutes.The output of the show frame-relay pvc command shows "PVC STATUS = INACTIVE". The PVC is configured correctly on the local switch. 175.The safer .

What command is used to verify the DLCI destination address in a Frame Relay static configuration? A. 109 / 262 . last time PVC status changed 00:25:40 C.3 dlci 403(0x193. with PAP as the fallback method. in BECN packets 192 D. on a serial interface? A. DLCI = 100 B.The safer .0x6410). Router(config-if)# authentication ppp chap pap Answer: B Explanation: This command tells the router first to use CHAP and then go to PAP if CHAP isn't available. CISCO.16. overloaded resources.4.The command frame-relay map ip 10.4. Router(config-if)# ppp authentication chap pap C.4. dynamic.  output value indicates to the local router that traffic sent to the corporate site is experiencing congestion? A. B. it will set the BECN bit on packets being returned to the sending device and the FECN bit on the packets being sent to the receiving device.0x6410). etc. broadcast. broadcast. The IP address 10. 176.4. active Serial0/0 (up): ip 10.8 102 broadcast was entered on the router. 102 is the remote DLCI that will receive the information.121.121.4.16. in DE packets 0 Answer: C Explanation: If device A is sending data to device B across a Frame Relay infrastructure and one of the intermediate Frame Relay switches encounters congestion. in FECN packets 147 E. show frame-relay map D.4. 178. over-subscribed port.8 is the local router port used to forward data. status defined. show frame relay end-to-end Answer: C Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. static. C.. Router(config-if)# authentication ppp chap fallback ppp D. This command should be executed from the global configuration mode. dynamic. status defined. Which of the following statements is true concerning this command? A. congestion being full buffers. easier way to help you pass any IT exams.Which command is used to enable CHAP authentication.. Router(config-if)# ppp authentication chap fallback ppp B.0x6430).4 dlci 401(0x191. show frame-relay pvc B. show frame-relay lmi C. active Serial0/0 (up): ip 10. status defined. active 177.1 dlci 401(0x191.

D. 180. It cannot be used on R3 or R1. Ethernet Answer: A.) A. C. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.Refer to the exhibit. This command is required for all Frame Relay configurations.The safer . DSL is also considered a WAN connection. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3. B. DLCI 17 describes a PVC on R2. PPP B. L2TPv3 E.  D. It is a data link layer protocol used for WAN connections.C Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. as it can be used to connect networks. easier way to help you pass any IT exams. typically when used with VPN technology. DLCI 17 describes the ISDN circuit between R2 and R3. DSL D. Answer: C Explanation: DLCI-Data Link Connection Identifier Bits: The DLCI serves to identify the virtual connection so that the receiving end knows which information connection a frame belongs to. Answer: E Explanation: Broadcast is added to the configurations of the frame relay. to be forwarded across the PVC. Which statement describes DLCI 17? A. E. allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself. Note that this DLCI has only local 110 / 262 . such as RIP updates. 179. The broadcast option allows packets. so the PVC supports broadcast.Which two options are valid WAN connectivity methods? (Choose two. WAP C. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers.

The safer .168. The Frame Relay router sends out Inverse ARP requests on its Frame Relay PVC to discover the protocol address of the remote device connected to the Frame Relay network. defines the DLCI on which packets from the 192. data integrity.168.1. L2TP C. to map a known SPID to a MAC address Answer: D Explanation: Dynamic address mapping relies on the Frame Relay Inverse Address Resolution Protocol (Inverse ARP). DLCI 202 should be used. PPTP Answer: C Explanation: IPSec is a framework of open standards that provides data confidentiality. to map a known DLCI to an IP address E. defines the source IP address that is used in all broadcast packets on DCLI 202 C.1. to map a known IP address to a SPID F. Both routers are running IOS version 12. to map a known MAC address to an IP address D.2 IP address are received D.168.2 202 broadcast command? A.RouterA is unable to reach RouterB. including both dynamic and static mapping entries. defines the destination IP address that is used in all broadcast packets on DCLI 202 B. easier way to help you pass any IT exams. to map a known IP address to a MAC address B. to map a known DLCI to a MAC address C.What is the purpose of Inverse ARP? A. The router builds and maintains this address-to-DLCI mapping table.1.0.1. 183.  significance. IPsec D.2 IP address Answer: D Explanation: This command identifies the DLCI that should be used for all packets destined to the 192. which contains all resolved Inverse ARP requests. defines the DLCI that is used for all packets that are sent to the 192. defined by RFC 1293. 184. RSA B.2 address. and data authentication between participating peers at the IP layer. to resolve a next hop network protocol (IP) address to a local DLCI value. IPSec can be used to protect one or more data flows between IPSec peers.What is the result of issuing the frame-relay map ip 192. 111 / 262 . The responses to the Inverse ARP requests are used to populate an address-to-DLCI mapping table on the Frame Relay router or access server. 182. 181. Frame Relay is strictly a Layer 2 protocol suite.Which protocol is an open standard protocol framework that is commonly used in VPNs.168. In this case. to provide secure end-to-end communications? A.

incorrect map statement D.2 255. Maybe the “ip address 172.  After reviewing the command output and graphic. The “frame-relay map ip” statement is correct thus none of the four answers above is correct. 186.1 255. B.100. incorrect bandwidth configuration B. All TCP traffic is marked discard eligible. Note: In the Frame Relay frame format. All traffic exceeding the CIR is marked discard eligible.0. That makes answer C correct. what is the most likely cause of the problem? A. there is a bit called Discard eligible (DE) bit that is used to identify frames that are first to be dropped when the CIR is exceeded.255.16. D.DRAG DROP. 185.0 command should be “ip address 172.) 112 / 262 . easier way to help you pass any IT exams.100.0. C.255. (Not all acronyms are used. Answer: D Explanation: Committed information rate (CIR): The minimum guaranteed data transfer rate agreed to by the Frame Relay switch. All UDP traffic is marked discard eligible and a BECN is sent. But we guess there is a typo in the output. Frames that are sent in excess of the CIR are marked as discard eligible (DE) which means they can be dropped if the congestion occurs within the Frame Relay network. All TCP traffic is marked discard eligible and a BECN is sent.What occurs on a Frame Relay network when the CIR is exceeded? A. Drag the Frame Relay acronym on the left to match its definition on the right. incorrect LMI configuration C.0. incorrect IP address Answer: C Explanation: First we have to say this is an unclear question and it is wrong.The safer .16.

The safer .252 Main(config-if)# encapsulation ppp Main(config-if)# no shut C.A network administrator needs to configure a serial link between the main office and a remote location.252 Main(config-if)# no shut B.16. Main(config)# interface serial 0/0 Main(config-if)# ip address 172. easier way to help you pass any IT exams.255.255.1 255.  Answer: 187. Main(config)# interface serial 0/0 Main(config-if)# ip address 172. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.255. Main(config)# interface serial 0/0 Main(config-if)#ip address 172.16.1.255.255.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut D.1.1.16. The router at the remote office is a non-Cisco router.1 255. How should the network administrator configure the serial interface of the main office router to make the connection? A.1 255.255.1 255.1.252 Main(config-if)#encapsulation ietf 113 / 262 .16.255.255.

) A. ✑host A 192.22.The safer .168. The requirements are: ✑Host B should be able to use a web browser (HTTP) to access the Finance Web Server. The verification is based on a shared secret (such as the client user's password).Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two. CHAP authentication is performed only upon link establishment. Answer: B. ✑Other types of access from host B to the Finance Web Server should be blocked. ✑The Public Web Server in the Server LAN has been assigned an address of 172.132. F. This access list can contain no more than three statements that meet these requirements. 189.  Main(config-if)# no shut Answer: B Explanation: With serial point to point links there are two options for the encapsulation.17.4 ✑The Finance Web Server has been assigned an address of 172. D.22. You have been tasked to create and apply a numbered access list to a single outbound interface.201.168. HDLC.168. A corporation wants to add security to its network.2 ✑host C 192.65. ✑All passwords have been temporarily set to “cisco”. C.168.168. 188. easier way to help you pass any IT exams.3 ✑host D 192.201. The default. CHAP uses a two-way handshake.237. E. 114 / 262 . ✑The computers in the Hosts LAN have been assigned addresses of 192. ✑All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.18. CHAP periodically verifies the identity of the client by using a three-way handshake.254. CHAP authentication periodically occurs after link establishment.C Explanation: CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients.CORRECT TEXT. is Cisco proprietary and works only with other Cisco routers.201. CHAP uses a three-way handshake.18.168. ✑All hosts in the Core and on local LAN should be able to access the Public Web Server.1 – 192. The other option is PPP which is standards based and supported by all vendors.201. This happens at the time of establishing the initial link (LCP). CHAP authentication passwords are sent in plaintext. CHAP has no protection from playback attacks.201. B.237. ✑The Core connection uses an IP address of 198. Access to the router CLI can be gained by clicking on the appropriate host. and may happen again at any time afterwards.201.1 ✑host B 192.

The safer .  115 / 262 . easier way to help you pass any IT exams.

easier way to help you pass any IT exams.  116 / 262 .The safer .

so we will place our numbered access list here in the outbound direction. we know that the servers are located on the fa0/1 interface.34 PM. Corp1#configure terminal Our access-list needs to allow host B – 192. easier way to help you pass any IT exams.  Answer: Macintosh HD:Users:danielkeller:Desktop:Screen Shot 2015-11-17 at 3.png From this.2 to the Finance Web Server 117 / 262 .24.The safer .168125.

17 via HTTP (port 80). To verify. ✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. Then. MIB B. SNMP Agent E.109.109. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192. A variety of network management applications are available for use with SNMP.109.22. The SNMP framework has three parts: +An SNMP manager +An SNMP agent +A Management Information Base (MIB) The SNMP manager is the system used to control and monitor the activities of network hosts using SNMP.B. In the address box type http://172.109. Infrastructure Services Which three are the components of SNMP? (Choose three) A. apply this access-list to Fa0/1 interface (outbound direction) Corp1(config)#interface fa0/1 Corp1(config-if)#ip access-group 100 out Notice: We have to apply the access-list to Fa0/1 interface (not Fa0/0 interface) so that the access-list can filter traffic coming from both the LAN and the Core networks. This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long). SNMP Manager C.17 to check if you are allowed to access Finance Web Server or not. The term NMS can be applied to either a dedicated device used for network management. Click on other hosts (A. C and D) and check to make sure you can’t access Finance Web Server from these hosts.168. or the applications used on such a device. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config 190.18.D Explanation: SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents.18 any Finally. SNMP provides a standardized framework and a common language used for the monitoring and management of devices in a network. Finally.22.125. SysLog Server D.17 eq 80 Then.2 host 172. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.109.The safer . repeat to make sure they can reach the public server at 172. our next two instructions are these: ✑ Other types of access from host B to the Finance Web Server should be blocked.17 Our last instruction is to allow all hosts in the Core and on the local LAN access to the Public Web Server (172.Topic 5.109.22. If your configuration is correct then you can access it. easier way to help you pass any IT exams.22.109.18) Corp1(config)#access-list 100 permit ip host 172.22. The most common managing system is called a Network Management System (NMS).22. These 118 / 262 .  172.22. Set Answer: A. just click on host B to open its web browser.

What is the default Syslog facility level? A. 8 D. Cisco IOS devices. local7 Answer: D Explanation: By default. and cannot be used globally for Internet use. easier way to help you pass any IT exams. 193. 119 / 262 . or switch). The agent and MIB reside on the routing device (router. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.ciscopress.How many bits are contained in each field of an IPv6 address? A. access server. 4 C. CatOS switches.The safer .What will happen if a private IP address is assigned to a public interface connected to an ISP? A. A conflict of IP addresses happens. local6 D. 191. Only the ISP router will have the capability to access the public network. 24 B. Addresses in a private range will not be routed on the Internet backbone. The NAT process will be used to translate this address to a valid IP address. C. which consists of collections of managed objects. most Cisco devices provide options to change the facility level from their default value. and VPN 3000 Concentrators use facility local7 while Cisco PIX Firewalls use local4 to send syslog messages. Moreover. The Management Information Base (MIB) is a virtual information storage area for network management information.  features range from simple command-line applications to feature-rich graphical user interfaces (such as the CiscoWorks2000 line of products). The SNMP agent is the software component within the managed device that maintains the data for the device and reports these data. Addresses are permanently assigned so that the host uses the same address at all times. The groups are separated by colons (:). 194. local5 C.asp?p=426638 192.com/articles/article. 16 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits. because other public routers can use the same range. D. to managing systems. local4 B. each group representing 16 bits (two octets). you must define the relationship between the manager and the agent. as needed.How does a DHCP server dynamically assign IP addresses to hosts? A. Answer: A Explanation: Private RFC 1918 IP addresses are meant to be used by organizations locally within their own network only. To enable the SNMP agent on a Cisco routing device. B. Reference: http://www.

The DHCP server returns these addresses to the address pool and reallocates them as necessary. debug F.F Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist3 errors Error conditions exist 4 warnings Warning conditions exist 5 120 / 262 . emergency C. At the end of the period. easier way to help you pass any IT exams. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. 195. The PC connects to the network with that leased IP address until the lease expires.The safer . Addresses are assigned for a fixed period of time.  B. This lease mechanism ensures that hosts that move or power off do not hold onto addresses that they do not need. error Answer: B. critical E.) A. Answer: C Explanation: DHCP works in a client/server mode and operates like any other client/server relationship.D. When a PC connects to a DHCP server. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease. informational B. D. warning D. the server assigns or leases an IP address to that PC. C. and another address is then assigned. a new request for an address must be made. The host must contact the DHCP server periodically to extend the lease.A network administrator enters the following command on a router: logging trap 3. Addresses are leased to hosts. What are three message types that will be sent to the Syslog server? (Choose three.

conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “logging trap level” command. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block? A. as well as port information. destination address and wildcard mask B. 16 Answer: C Explanation: Since there is one class C network that means 256 total IP addresses. Extended ACL’s examine the source and destination address. but significant. since we need to reserve the network and broadcast addresses for each of these subnets.The network administrator needs to address seven LANs. For example. easier way to help you pass any IT exams. source address and subnet mask D. 6 C.The safer .  notification Normal.On which options are standard access lists based? A. that level and all the higher levels will be logged. FF02::2 C. 8 B. will be logged. 32 E. FF02::3 D. However.Which IPv6 address is the all-router multicast group? A. 30 D. critical. 198. all the logging of emergencies. 197. destination address and subnet mask C. Since we need 7 LAN blocks and we cannot use the first one (subnet 0) we take 256/8=32 hosts. FF02::4 Answer: B Explanation: 121 / 262 . 196. alerts. only 30 total IP addresses are usable. by using the “logging trap 3 command. source address and wildcard mask Answer: D Explanation: Standard ACL’s only examine the source IP address/mask to determine if a match is made. and errors. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. FF02::1 B. 14 F.

unspecified address Answer: B Explanation: IPv6 Anycast addresses are used for one-to-nearest communication.31.0/27 E.188.31.  Well-known IPv6 multicast addresses: Address Description ff02::1 All nodes on the local network segment ff02::2 All routers on the local network segment 199.188.0/28 D.0/29 Answer: D Explanation: Each subnet has 30 hosts < 32 = 25 so we need a subnet mask which has at least 5 bit 0s -> /27.31.31. multicast D.0/25 C.188. 200. 10. meaning an Anycast address is used by a device to send data to one specific recipient (interface) that is the closest out of a group of recipients (interfaces). easier way to help you pass any IT exams.What is known as "one-to-nearest" addressing in IPv6? A.Refer to the exhibit.188. Which IP address range meets these requirements? A. 201.31.188. 122 / 262 .0/23. 10. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.31.0/26 B.The safer .You are working in a data center environment and are assigned the address range 10. anycast C. 10. global unicast B.188. 10. 10. Also the question requires the maximum number of subnets (which minimum the number of hosts-per-subnet) so /27 is the best choice.

the Serial0/0 interface address will not support the NAT configuration as shown. FE08::280e:611:a:f14f:3d69 Answer: A Explanation: In the Internet Protocol Version 6 (IPv6).16. FEFE:0345:5f1b::e14d:3d69 D. The actual link local addresses are assigned with the prefix fe80::/64. FE80::380e:611a:e14f:3d69 B.The safer . 202. ExternalRouter must be configured with static routes to networks 172.Which of these represents an IPv6 link-local address? A. They may be assigned by automatic (stateless) or stateful (e.g. D.1. easier way to help you pass any IT exams.0/24 and 172. 203. the address block fe80::/10 has been reserved for link-local unicast addressing. Answer: C Explanation: The “list 1 refers to the access-list number 1.0/24. B.2. FE81::280f:512b:e14f:3d69 C. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported. The number 1 referred to in the ip nat inside source command references access-list number 1. Because of the addressing on interface FastEthernet0/1. service timestamps debug datetime localtime<input type 123 / 262 . C.16. manual) mechanisms. service timestamps debug datetime msec<input type C. service timestamps log datetime localtime<input type B.What command instructs the device to timestamp Syslog debug messages in milliseconds? A.  What statement is true of the configuration for this network? A.

DD is the date. ipv6 neighbor Answer: C Explanation: To enable IPv6 routing on the Cisco router use the following command: ipv6 unicast-routing If this command is not recognized. The timestamp format for datetime is MMM DD HH:MM:SS.mmm is milliseconds. by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address E. OUI D. 205. 207. 204.How is an EUI-64 format interface ID created from a 48-bit MAC address? A. manufacturer. by prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes Answer: D Explanation: The modified EUI-64 format interface identifier is derived from the 48-bit link-layer (MAC) address by inserting the hexadecimal number FFFE between the upper three bytes (OUI field) and the lower three bytes (serial number) of the link layer address. by prefixing the MAC address with 0xFF and appending 0xFF to it D. ipv6 host C. easier way to help you pass any IT exams. where MMM is the month. by prefixing the MAC address with 0xFFEE C. ipv6 unicast-routing D. VAI Answer: C Explanation: An Organizationally Unique Identifier (OUI) is a 24-bit number that uniquely identifies a vendor. 206. your version of IOS does not support IPv6.The safer . service timestamps log datetime msec Answer: B Explanation: Enable millisecond (msec) timestamps using the service timestamps command: router(config)#service timestamps debug datetime msec.Refer to the exhibit. BIA C. With the additional keyword msec. and SS is the second.mmm. in the format HH:DD:MM:SS. MM is the minute. ipv6 local B. by appending 0xFF to the MAC address B. command configures the system to apply a time stamp to debugging messages. the system includes milliseconds in the time stamp. router(config)#service timestamps log datetime msec The “service timestamps debug”. HH is the hour (in 24-hour notation).Which command enables IPv6 forwarding on a Cisco router? A. where . They are used as the first 24 nits of the MAC address to uniquely identify a particular piece of equipment. NIC B. 124 / 262 .  D.What is the first 24 bits in a MAC address called? A. or other organization globally or worldwide.

and that the fa0/1 interface changed to a state of administratively down. causing the EIGRP adjacency to go down. use the “ipv6 address” command and specify the IP address you wish to use. 125 / 262 . The HSRP virtual IP address must be on a different subnet than the routers' interfaces on the same LAN. The HSRP default timers are a 3 second hello interval and a 10 second dead interval. D. 209. The EIGRP neighbor on Fa0/1 went down due to a failed link.0C07.Refer to the exhibit. 208.AC0A. The last line indicates that this caused an EIGRP neighbor adjacency to go down.ACxx. The virtual IP address and virtual MA+K44C address are active on the HSRP Master router. The HSRP virtual IP address must be the same as one of the router's interface addresses on the LAN. HSRP supports only clear-text authentication. D.0C07. E.F Explanation: The virtual MAC address of HSRP version 1 is 0000. B. F.  What is the cause of the Syslog output messages? A. ipv6 autoconfig 2001:db8:2222:7272::72/64 B. 210. enabling an administrative form of load balancing.B. ipv6 autoconfig Answer: B Explanation: To assign an IPv6 address to an interface. This can only be done by issuing the shutdown command. C. ipv6 address PREFIX_1 ::1/64 D. HSRP group 10 uses the HSRP virtual MAC address of 0000. where xx is the HSRP group number in hexadecimal based on the respective interface.The safer . Interface Fa0/1 has become error disabled. HSRP supports up to 255 groups per interface.FXXX (XXX: HSRP group in hexadecimal). Answer: A. C. causing the adjacency to go down. A shut command was executed on interface Fa0/1. causing the EIGRP adjacency to go down.) A.Which three statements about HSRP operation are true? (Choose three. Answer: C Explanation: The first lines of the message show that a configuration change was made.Which command can you use to manually assign a static IPv6 address to a router interface? A. HSRP version 2 uses a virtual MAC address of 0000. The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process. For example. B. ipv6 address 2001:db8:2222:7272::72/64 C. easier way to help you pass any IT exams.0C9F.

Set the IP gateway to be used by the network. DHCP servers assigns IP addresses from a pool of addresses and also assigns other parameters such as DNS and default gateways to hosts. Perform host discovery used DHCPDISCOVER message.255. ✑ Optionally. B. D.255.252.F Explanation: The Dynamic Host Configuration Protocol (DHCP) is a network protocol used to configure devices that are connected to a network (known as hosts) so they can communicate on that network using the Internet Protocol (IP).C Explanation: ✑ A single interface may be assigned multiple addresses of any type (unicast. Every IPv6 interface contains at least one loopback address.255. Assign and renew IP address from the default pool. 255.248.0 211.0 D.  Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses? A. Answer: C.Which two of these statements are true of IPv6 address representation? (Choose two. F. 212. 126 / 262 .255.254.255. Monitor IP performance using the DHCP server. Answer: B.1111 1111.0 B. 255. D.) A.The safer . 255.254.255. multicast). E. anycast. Provide an easy management of layer 3 devices. A single interface may be assigned multiple IPv6 addresses of any type. B. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory. Configure IP address parameters from DHCP server to a host.1111 1110. It involves clients and a server operating in a client-server model. There are four types of IPv6 addresses: unicast. E. easier way to help you pass any IT exams.0000 0000 -> 255. and broadcast. The first 64 bits represent the dynamically created interface ID. C.Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two. every interface can have multiple unique local and global addresses.0 C. ✑ Every IPv6-enabled interface must contain at least one loopback and one link-local address. multicast. anycast. C.0 Answer: B Explanation: 310 hosts < 512 = 29 -> We need a subnet mask of 9 bits 0 -> 1111 1111.) A. 255.

a new request for an address must be made. If renewal with the original leasing server fails (because. and may terminate the lease. It acquires a lease through a process of allocation. then when it reboots or starts up after being shut down. to renew the lease so it can keep using its IP address. easier way to help you pass any IT exams. ✑ Normal Operation: Once a lease is active. Addresses are leased to hosts. it will contact the DHCP server that granted it the lease to confirm the lease and acquire operating parameters.Which statement describes the process of dynamically assigning IP addresses by the DHCP server? A. 214.Refer to the exhibit. Addresses are assigned for a fixed period of time. ✑ Reallocation: If a client already has an address from an existing lease. ✑ Rebinding. Addresses are permanently assigned so that the hosts uses the same address at all times. trying to extend its current lease with any server that will allow it to do so. C. This is sometimes called reallocation. the client will attempt to contact the server that initially granted the lease. and hence. D. ✑ Release: The client may decide at any time that it no longer wishes to use the IP address it was assigned. for example. releasing the IP address. B.  Reference: IPv6 Addressing at a Glance – Cisco PDF 213. no DHCP-assigned address. which periodically contact the DHCP server to renew the lease. 127 / 262 .The safer . Answer: D Explanation: The DHCP lifecycle consists of the following: ✑ Allocation: A client begins with no active lease. ✑ Renewal: After a certain portion of the lease time has expired. it is similar to the full allocation process but shorter. The client is said to be bound to the lease and the address. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. then the client will try to rebind to any active DHCP server. at the end of the period. using its assigned IP address and other parameters during the “main part” of the lease. the client functions normally. the server has been taken offline).

The network administrator has been asked to give reasons for moving from IPv4 to IPv6. 2001:0000:130F::099a::12a B. 172. 215.x so our summarized subnet must be also in that form -> Only A. 217.32.0.0. 172. and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address. IP address leased to the LAN D.) A.The safer .16.Which option is a valid IPv6 address? A.0 /16 B.0/18.) A. The leading 0’s in a group can be collapsed using ::.64. 172.0.  In this VLSM addressing scheme. Telnet access does not require a password E. autoconfiguration F. what summary address would be sent from router A? A. B or .0 /16 Answer: A Explanation: Router A receives 3 subnets: 172. change of source address in the IPv6 header C.When a DHCP server is configured. easier way to help you pass any IT exams.0/18. each group representing 16 bits (two octets). 2004:1:25A4:886F::1 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits. 172.0. 172. What are two valid reasons for adopting IPv6 over IPv4? (Choose two. which two IP addresses should never be assignable to hosts? (Choose two.16. 172.128.0. broadcast address on the network C. no broadcast B.x. NAT Answer: A.16. 172.32.64.0 /20 C.0. 216.16. network or subnetwork IP address B.32. change of destination address in the IPv6 header D. but this can only be done once in an IP address.0 /16 E. -> Only answer A has these 2 conditions ->. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. All these 3 subnets have the same form of 172.0/24 and 172.E Explanation: IPv6 does not use broadcasts.16.16. IP address used by the interfaces 128 / 262 .0 /24 D. FEC0:ABCD:WXYZ:0067::2A4 D. 2002:7654:A1AD:61:81AF:CCC1 C.0 /17 F. The groups are separated by colons (:). The smallest subnet mask of these 3 subnets is /18 so our summarized subnet must also have its subnet mask equal or smaller than /18.16.

  E. one-to-many communication model B.E. The anycast packet in a LAN setting forwards the packet to the neighbor it learned about first. All GLBP member routers will reply in round-robin fashion. 0007. It replies with different virtual MAC addresses that correspond to different routers (known as Active Virtual Forwarders – AVFs) so that clients can send traffic to different routers in that GLBP group (load sharing).5E00. Anycast is designed to send a packet to the nearest interface that is a part of that anycast group. easier way to help you pass any IT exams.2. The active virtual gateway will reply with one of four possible virtual MAC addresses.In GLBP.) A.0.01A3 B. you will receive an error message saying that they can’t be assignable.1.0. The active virtual gateway will reply with its own hardware MAC address. these addresses can be assigned to more than one interface unlike an IPv6 unicast address. The sender creates a packet and forwards the packet to the anycast address as the destination address which goes to the nearest router.AE01 129 / 262 . 219. there is still only one virtual IP address but each router has a different virtual MAC address. When try to assign these addresses to hosts. In GLBP. a unique IPv6 address for each device in the group E.The safer .F Explanation: A new address type made specifically for IPv6 is called the Anycast Address.1. 220.What is a valid HSRP virtual MAC address? A.0/16) and broadcast address (for example 23. any-to-many communication model D. D.Which three are characteristics of an IPv6 anycast address? (Choose three. Answer: A Explanation: One disadvantage of HSRP and VRRP is that only one router is in use.255/24) should never be assignable to hosts.B400. C. These IPv6 addresses are global addresses. manually assigned address to the clients F. which router will respond to client ARP requests? A. 218. delivery of packets to the group interface that is closest to the sending device Answer: B. 0000.B Explanation: Network or subnetwork IP address (for example 11. the same address for multiple devices in the group F.0/8 or 13. one-to-nearest communication model C. However in a LAN setting the nearest interface is found depending on the order the neighbors were learned. The GLBP member routers will reply with one of four possible burned in hardware addresses. The nearest router or interface is found by using the metric of a routing protocol currently running on the network.0. However. other routers must wait for the primary to fail because they can be used. designated IP address to the DHCP server Answer: A. Gateway Load Balancing Protocol (GLBP) can use of up to four routers simultaneously. First a GLBP group must elect an Active Virtual Gateway (AVG). The AVG is responsible for replying ARP requests from hosts/clients. B.

252.240 B.168.252 will allow for only 2 usable IP addresses.16 255. 0000. 221.255. 255. 255.0 255. 192. in which the MAC address range from 0005.248 C.255.0.255. 223.255. a mask of 255. 192.255. 0007. Emergencies B.255.Fxxx.255.255.Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs.255.73A0. A subnet mask of 255.252. since we cannot use the network or broadcast address.252 C.255.B301 Answer: C Explanation: With HSRP. +With HSRP version 1.8 255.255.0C9F.168. the virtual router’s MAC address is 0000.0000 through 0005. Which network address and subnet mask meet this requirement? A. Alerts C.252.168.  C.252.255. 0.248 will allow for up to 6 hosts to reside in this network.255.240 E.224 will allow for up to 8 networks with 32 IP addresses each (30 usable).255.168.AC15 D.252 Answer: B Explanation: A subnet mask of 255. the virtual MAC address if 0000.8 255.252.255. two or more devices support a virtual router with a fictitious MAC address and unique IP address.255. Warnings 130 / 262 . 192.240 Answer: D Explanation: For a class C network. Which 3 types of logs would be generated (choose four) A.255. Note: Another case is HSRP for IPv6.Syslog was configured with a level 3 trap. 255.255. in which xxx is the HSRP group.16 255.255.252 B.168.255.0 D.224 E.73A0.255. 192.0c07. There are two version of HSRP. in which xx is the HSRP group.5E00.255. +With HSRP version 2. easier way to help you pass any IT exams.0.255.255. Errors E.You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. 255. with each LAN containing 5 to 26 hosts? A.0FFF.252 D. 192.ACxx .The safer . 222. Critical D.0C07.

For example. Reference: http://www. Note: Syslog messages can be written to a file in Flash memory although it is not a popular place to use. warnings will be displayed. Standby Router Answer: B Explanation: Members of a GLBP group elect one gateway to be the active virtual gateway (AVG) for that group. all the logging of emergencies. but significant. Flash B.B. The logging buffer . or a UNIX syslog server. The AVG assigns a virtual MAC address to each member of the GLBP group. alerts. If you specify a level with the “logging console level” command. 224. The console terminal D. 225.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp. errors. Each gateway assumes responsibility for forwarding packets sent to the virtual MAC address assigned to it by the AVG.What are the Popular destinations for syslog messages to be saved? (Choose three) A.Which statement is correct regarding the operation of DHCP? 131 / 262 . These gateways are known as active virtual forwarders (AVFs) for their virtual MAC address. such as the logging buffer (on RAM). Syslog server Answer: B. that level and all the higher levels will be displayed.cisco. The process also sends messages to the console. depending on your configuration. Load sharing is achieved by the AVG replying to the ARP requests with different virtual MAC addresses.The safer .In a GLBP network. The AVG is responsible for answering Address Resolution Protocol (ARP) requests for the virtual IP address.RAM C.C.D Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Warning conditions exist 5 notification Normal. terminal lines (console terminal). conditions exist 6 informational Informational messages 7 debugging Debugging messages The highest level is level 0 (emergencies). AVG C. switches send the output from system messages and debug privileged EXEC commands to a logging process. Active Router D. Other terminals E. who is responsible for the ARP request? A.html 226.  Answer: A. easier way to help you pass any IT exams. by using the “logging console warnings” command.C. We can configure this feature with the command logging file flash:filename. The logging process controls the distribution of logging messages to various destinations.E Explanation: By default. critical. The lowest level is level 7. Other group members provide backup for the AVG in the event that the AVG becomes unavailable. AVF B.

) A. If a conflict is detected. the address is removed from the pool and will not be reused until the server is rebooted. The address will not be assigned until the administrator resolves the conflict. A DHCP client uses a ping to detect address conflicts. the address is removed from the pool for an amount of time configurable by the administrator. use DHCPv6 to map IPv4 addresses to IPv6 addresses Answer: A. With dual stack.D Explanation: Several methods are used terms of migration including tunneling. Dual stack uses a combination of both native IPv4 and IPv6. the address is removed from the pool and an administrator must resolve the conflict. Hosts can simultaneously reach IPv4 and IPv6 content. 228. If an address conflict is detected. easier way to help you pass any IT exams. If an address conflict is detected.html) 227.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. configure IPv6 directly C.  A. configure IPv4 tunnels between IPv6 islands D. Answer: D Explanation: An address conflict occurs when two hosts use the same IP address. and dual stack. translators. E. D. C. while translators simply translate IPv6 packets into IPv4 packets. (Reference: http://www. devices are able to run IPv4 and IPv6 together and if IPv6 communication is possible that is the preferred protocol. 132 / 262 .The safer . A DHCP server uses a gratuitous ARP to detect DHCP clients.What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme.cisco. enable dual-stack routing B. During address assignment. the address is removed from the pool.C. F. (Choose three. If an address conflict is detected. use proxying and translation to translate IPv6 packets into IPv4 packets E. A DHCP client uses a gratuitous ARP to detect a DHCP server. Tunnels are used to carry one protocol inside another. B.Refer to the exhibit. DHCP checks for conflicts using ping and gratuitous ARP. statically map IPv4 addresses to IPv6 addresses F.

host A IP address: 192.) A.168.128 E. 229.1.190.168.168.168. Which means each host in the VLAN must corresponds with the VLAN configured on the sub-interfaces.168.10 IP address as their default gateway.168. each hosts must also be in the same subnet as fa0/0.168. easier way to help you pass any IT exams. Which three values could be used for the configuration of these hosts? (Choose three.78.168. host B IP address: 192. host B default gateway: 192.1.10 IP – same with hosts in VLAN 20. Host B (using port 9 – VLAN 20) must use IP 192.168.190.1.190 Answer: A. So find out the usable IP addresses on each sub-interfaces – for 192. VLAN 10 is configured on fa0/0.1.168.1.Refer to the exhibit.1.94 and for 192.1.168.1.1.129 F.1.168. default gateway 192.79 B.168.79.130.78 /27: 192.F Explanation: It’s a “router-on-a-stick” configuration.78 D.1.64 C.65 – . So each hosts in VLAN 10 must use fa0/0.C. default gateway 192. 133 / 262 . host A IP address: 192.10 and VLAN 20 on fa0/0. Host A (using port 6 – VLAN 10) must use IP 192.The safer .128 – .168.1.20.1. host A default gateway: 192. host B IP address: 192.  A network administrator is adding two new hosts to SwitchA.130 /26: 192.1.

16.) A.3.128/25 C. easier way to help you pass any IT exams.172.3.3. Network A .3.B Explanation: A TRAP is a SNMP message sent from one application to another (which is typically on a remote host). Link A .16. GET D.3.128/25 is the best.16. 230.3.172.112/30 Answer: B.172. Link A .192/26 D. valid option. etc.3. a /25 is required for 120 hosts and again 172. has been noticed.172. SET Answer: A.16.16. TRAP B.The safer . Link A . 134 / 262 .0/30 E.16. Their purpose is merely to notify the other application that something has happened. Also. Which network addresses should be used for Link A and Network A? (Choose two.D Explanation: Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used. 231.172. SNMPv2 PDUs fixed this by introducing the notion of an INFORM.48/26 B. Network A . 172.What are the alert messages generated by SNMP agents called? A.3.16.40/30 F.Refer to the diagram. INFORM C.  All of the routers in the network are configured with the ip subnet-zero command. The big problem with TRAPs is that they’re unacknowledged so you don’t actually know if the remote application received your oh-soimportant message to it. which is nothing more than an acknowledged TRAP.172.0/30 is valid.16. Network A .

D.25 can be assigned to hosts in VLAN1: The usable host range in this subnet is 172. The LAN interface of the router is configured with multiple IP addresses.1-172.16. Warning Answer: A. 232. Notice C. conditions exist 6 informational Informational messages 7 debugging 135 / 262 . The IP address 172. Alert D.1.The safer .255. one with an IP address that belongs in each VLAN.205 can be assigned to hosts in VLAN1 E. Error E. Answer: B.C. The subnet mask in use is 255.255.16.1.  All hosts have connectivity with one another.) A.255. which is needed. F. easier way to help you pass any IT exams. The subnet mask in use is 255.192.255.255. Which statements describe the addressing scheme that is in use in the network? (Choose three.E Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Warning conditions exist 5 notification Normal. The LAN interface of the router is configured with one IP address. Emergency B.1.16.What levels will be trapped if the administrator executes the command router(config)# logging trap 4 (Choose four) A.16.128: This is subnet mask will support up to 126 hosts. The IP address 172.255.F Explanation: The subnet mask in use is 255.1.126 The LAN interface of the router is configured with multiple IP addresses: The router will need 2 subinterfaces for the single physical interface.1.C. B. The IP address 172. C.25 can be assigned to hosts in VLAN1 D. but significant.16.128.

the transmission of a packet to all hosts on the attached link using a special broadcast address. complicated header E.e. all the logging of emergencies. For example. This is accomplished by autoconfiguration. no broadcasts D. 2031:0:130F::9C0:876A:130B Answer: D Explanation: 136 / 262 . dynamic D.) A.0.The safer . critical. by using the “logging trap 4 command. warnings will be logged. that level and all the higher levels will be logged. i. The authentication process is done by the router or a central access server such as a TACACS+ or RADIUS server. 2001:0db8:0000:130F:0000:0000:08GC:140B B. and therefore does not define broadcast addresses. optional IPsec B. errors. 235. plug-and-play F.Which IPv6 address is valid? A.What are three features of the IPv6 protocol? (Choose three.  Debugging messages If you specify a level with the “logging trap level” command. 233.1. In IPv6. Which ACL can be used? A.A network engineer wants to allow a temporary entry for a remote user with a specific username and password so that the user can access the entire network over the Internet.com/en/US/tech/tk583/tk822/technologies_tech_note09186a0080094524. standard B. It is possible to plug a node into an IPv6 network without requiring any human intervention. easier way to help you pass any IT exams. alerts.C. 2001:0db8:0:130H::87C:140B C. extended C. IPv6 does not implement traditional IP broadcast. The configuration of dynamic ACL can be read here: http://www. which is analogous to IPv4 multicast to address 224. the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1.E Explanation: An important feature of IPv6 is that it allows plug and play option to the network devices by allowing them to configure themselves independently.0. checksums Answer: B. This feature was critical to allow network connectivity to an increasing number of mobile devices. 2031::130F::9C0:876A:130B D. autoconfiguration C. reflexive Answer: C Explanation: We can use a dynamic access list to authenticate a remote user with a specific username and password. shtml 234.cisco.

An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.255.168. 255. 255.0/22 137 / 262 .1.255.192 F.255.255.255.255.E Explanation: Subnetting is used to break the network into smaller more efficient subnets to prevent excessive rates of Ethernet packet collision in a large network. What is the most efficient summarization that R1 can use to advertise its networks to R2? A. but this can only be done once in an IP address.252.1.The safer . Routers are used to manage traffic and constitute borders between subnets.0 B. 255. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. which of the following subnet masks will support an appropriate addressing scheme? (Choose two..248. each group representing 16 bits (two octets). 236.0 D. The groups are separated by colons (:).128 C. An IPv4 subnet mask is frequently expressed in quad-dotted decimal representation. which is a bit mask covering the number of bits used in the prefix.168.255.0/24). Such subnets can be arranged hierarchically.Refer to the exhibit. The leading 0’s in a group can be collapsed using ::. 255.) A. Working with only one Class B address. 172. the routing prefix is often expressed as a "subnet mask".255. A routing prefix is the sequence of leading bits of an IP address that precede the portion of the address used as host identifier. with the organization's network address space (see also Autonomous System) partitioned into a tree-like structure. easier way to help you pass any IT exams. 255. 255.255.g.255. e.0 is the subnet mask for the 192. 237.0 network with a 24-bit routing prefix (192.255. 255.  An IPv6 address is represented as eight groups of four hexadecimal digits.224 E.0.A national retail chain needs to design an IP addressing scheme to support a nationwide network.0 Answer: B.255.1. In IPv4 networks.

172.What authentication type is used by SNMPv2? A. RFC 1905.0/22 D. SNMPv2c (the "c" stands for "community") is an Experimental Internet Protocol defined in RFC 1901.7. and uses the community-based security model of SNMPv1.The safer . 172.1. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. HMAC-MD5 B.0/24 172.1.5. HMAC-SHA C.1.1.0/24 172.0/21 C. easier way to help you pass any IT exams.4. 238.0.128/25 172.) Security is based on community strings. and RFC 1906. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network.4.1.0/24 172.6.5.7.0/25 172.0/24 Answer: C Explanation: The 172.4. 172.4.7.255.6. defined in RFC 1157. -SNMPv3 — Version 3 of SNMP.1.1.4.1.0/22 subnet encompasses all routes from the IP range 172. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.4.0 – 172.0/24 172. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic). community strings Answer: D Explanation: SNMP Versions Cisco IOS software supports the following versions of SNMP: -SNMPv1 — The Simple Network Management Protocol: A Full Internet Standard.1. SNMP Security Models and Levels Model Level Authentication Encryption What Happens v1 noAuthNoPriv Community String No 138 / 262 .1.  B. -SNMPv2c — The community-string based Administrative Framework for SNMPv2. CBC-DES D.0/24 172.1.1.1.1.0/24 E. 172.

D.The safer . to allow two or more connections to be initiated from the outside. v3 authPriv MD5 or SHA DES Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. They are always present in the NAT table.cisco. they are always present in the NAT table even if they are not actively in use. v3 noAuthNoPriv Username No Uses a username match for authentication.com/c/en/us/td/docs/ios/12_2/configfun/configuration/guide/ffun_c/fcf014. 240. They allow connections to be initiated from the outside. v3 authNoPriv MD5 or SHA No Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. B. They can be configured with access lists. 139 / 262 . This is typically done to allow incoming connections from the outside (Internet) to the inside. Since these are static.  Uses a community string match for authentication. Answer: A.h tml 239. They require no inside or outside interface markings because addresses are statically defined.) A. C. Provides DES 56-bit encryption in addition to authentication based on the CBC-DES (DES-56) standard. v2c noAuthNoPriv Community String No Uses a community string match for authentication.Refer to the exhibit. Reference: http://www.Which two statements about static NAT translations are true? (Choose two.C Explanation: Static NAT is to map a single outside IP address to a single inside IP address. easier way to help you pass any IT exams.

you can keep your routing table entries (on the routers that receive the summarized routes) manageable.The safer . 172. you should try to keep your routing tables as small as possible by using route summarization./20 C. auto-negotiation of media rates C.16. 172.16.0.0. By summarizing routes. 172. reduces routing table entries B. 140 / 262 .0/18 Answer: B Explanation: The 172. 241.16.16.0. which offers the following benefits: ✑ Efficient allocation of addresses—Hierarchical addressing lets you take advantage of all possible addresses because you group them contiguously.0.ciscopress./21 B.0.0 and does it more efficiently than the /16 and /18 subnets.16. easier way to help you pass any IT exams.0./16 D. 172./20 network is the best option as it includes all networks from 172.) A.asp?p=174107 242.com/articles/article. efficient utilization of MAC addresses D.E Explanation: Here are some of the benefits of hierarchical addressing: ✑ Reduced number of routing table entries — whether it is with your Internet routers or your internal routers. dedicated communications between devices E.16.0.Refer to the exhibit.0 – 172. Reference: http://www.0.16. this is most easily accomplished when you employ a hierarchical addressing plan. The /21 subnet will not include all the other subnets in this one single summarized address. Route summarization is a way of having a single IP address represent a collection of IP addresses.0. ease of management and troubleshooting Answer: A.Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two.  Which address range efficiently summarizes the routing table of the addresses for router Main? A.0.16.

B. F. D. Answer: B Explanation: Object tracking is the process of tracking the state of a configured object and uses that state to determine the priority of the VRRP router in a VRRP group. It ensures the best VRRP router is the virtual router master for the group. What is the cause of the problem? A. NAT conserves addresses through host MAC-level multiplexing. it is configured as little123 on one side and big123 on the other.  The Bigtime router is unable to authenticate to the Littletime router.The safer .) A. With CHAP authentication. Dynamic NAT facilitates connections from the outside of the network.Which statement describes VRRP object tracking? A. The routers cannot be connected from interface S0/0 to interface S0/0. B. the configured passwords must be identical on each router. Here. E. C. The usernames are incorrectly configured on the two routers. B. Answer: B. D.F Explanation: By not revealing the internal IP addresses. NAT protects network security because private networks are not advertised. including Internet Key 141 / 262 . The routers cannot be configured to authenticate to each other. E. NAT adds some security to the inside network > F is correct. easier way to help you pass any IT exams. NAT facilitates end-to-end communication when IPsec is enabled. one router must authenticate to another router. In order for IPsec to work with NAT we need to allow additional protocols. It thwarts man-in-the-middle attacks. NAT accelerates the routing process because no modifications are made on the packets. Connection from the outside of the network through a “NAT” network is more difficult than a more network because IP addresses of inside hosts are hidden -> C is not correct. It monitors traffic flow and link utilization. The passwords do not match on the two routers.What are two benefits of using NAT? (Choose two. C. NAT eliminates the need to re-address all hosts that require external access. 244. Answer: B Explanation: With CHAP authentication. NAT has to modify the source IP addresses in the packets -> E is not correct. It causes traffic to dynamically move to higher bandwidth links. CHAP authentication cannot be used on a serial interface. D. 243. C.

16. Global addresses start with 2000::/3. NAT does conserve addresses but not through host MAC-level multiplexing.172. 246. B514 : 82C3 :: 0029 : EC7A : EC72 C.0 D.Given an IP address 172. 172. There is only one loopback address and it is ::1.16.28. B514 : 82C3 :: 0029 : EC7A : 0 : EC72 Answer: D 142 / 262 . B514 : 82C3 : 0029 : EC7A : EC72 B. If a global address is assigned to an interface.) A. the network range is 172. C.16. Answer: A.31. E.16. 172.16. Link-local addresses start with FE00:/12.0 and the broadcast IP address is 172.0 Answer: A Explanation: For this example.255.0.0.16.16.The safer .0 B. By allocating specific public IP addresses to inside hosts.240.What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72? A. It conserves addresses by allowing many private IP addresses to use the same public IP address to go to the Internet -> C is not correct. the network address is 172.16.254.24. 245. D.255. what is the correct network address? A.16.D Explanation: Below is the list of common kinds of IPv6 addresses: 247.31.252 with a subnet mask of 255. NAT eliminates the need to readdress the inside hosts -> B is correct.1 .Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.28.16. then that is the only allowable address for the interface. 172. Encapsulating Security Payload (ESP) and Authentication Header (AH) -> more complex -> A is not correct. easier way to help you pass any IT exams.0 C.16. B514 : 82C3 : 0029 :: EC7A : 0000 : EC72 D. B.16. Link-local addresses start with FF00::/10.  Exchange (IKE). 172.

get C.) A.What are three components that comprise the SNMP framework? (Choose three. Reference: http://www. 248.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/121_9_ea1/configuratio n/guide/scg/swsnmp.B. Traps can mean improper user authentication. MIB B. loss of connection to a neighbor. closing of a TCP connection. easier way to help you pass any IT exams. restarts.What SNMP message alerts the manager to a condition on the network? A.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/4_0_4_s_v_1_3/s ystem_management/configuration/guide/n1000v_system/n1000v_system_10snmp.) 143 / 262 . AES E. link status (up or down).html 250. as needed. trap D. supervisor F.  Explanation: There are two ways that an IPv6 address can be additionally compressed: compressing leading zeros and substituting a group of consecutive zeros with a single double colon (::). SNMP is defined in RFCs 3411 to 3418. you must define the relationship between the manager and the agent. to managing systems.html 249. -A managed information base (MIB) — The collection of managed objects on the SNMP agent.cisco.The safer . It is important to note that the double colon (::) can only be used once within a single IPv6 address notation. So. Cisco Nexus 1000V supports the agent and MIB.F Explanation: The SNMP framework consists of three parts: -An SNMP manager — The system used to control and monitor the activities of network devices using SNMP. MAC address tracking. -An SNMP agent — The software component within the managed device that maintains the data for the device and reports these data. response B. Traps are messages alerting the SNMP manager to a condition on the network. Reference: http://www. or other significant events. the extra 0’s can only be compressed once. set D. manager Answer: A.Which two are features of IPv6? (Choose two. agent C. To enable the SNMP agent. capture Answer: C Explanation: An agent can send unsolicited traps to the manager.cisco. Both of these can be used in any number of combinations to notate the same address.

1111 1111. broadcast C. 10. A packet sent to an anycast address is delivered to just one of the member interfaces.255. they have the same format as unicast addresses.252 B.252 D.0. Almost any unicast address can be employed as an anycast address. podcast E.10. 10. Which IP addressing scheme defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses? A. allcast Answer: A.C Explanation: IPv6 addresses are classified by the primary addressing and routing methodologies common in networking: unicast addressing. and differ only by their presence in the network at multiple points. which acquire the multicast address destination by participating in the multicast distribution protocol among the network routers.0/25 subnetted with mask 255.255. ✑ A multicast address is also used by multiple hosts. Compression C.1.0. 10.1111 1110. So 10. typically the nearest host. multicast D.255.The network administrator is asked to configure 113 point-to-point links. Authentication D.255.1. ✑ A unicast address identifies a single network interface. A packet that is sent to a multicast address is delivered to all interfaces that have joined the corresponding multicast group. 251.252 E.255.10.0.255.10. The Internet Protocol delivers packets sent to a unicast address to that specific interface. according to the routing protocol’s definition of distance.1111 1100 (borrow 7 bits) 252.255.0/23 subnetted with mask 255. and multicast addressing. So our initial network should be 30 – 7 = 23. 10.0/18 subnetted with mask 255.0/24 subnetted with mask 255.0. You can understand it more clearly when writing it in binary form: /23 = 1111 1111. Anycast addresses cannot be identified easily.Which three features are added in SNMPv3 over SNMPv2? A.0/16 subnetted with mask 255. usually belonging to different nodes.255.10. anycast B. Encryption 144 / 262 . The network used for point-to-point connection should be /30.252 C. anycast addressing. Message Integrity B.  A. 10.252 Answer: D Explanation: We need 113 point-to-point links which equal to 113 sub-networks < 128 so we need to borrow 7 bits (because 2^7 = 128).10.0/23 is the correct answer.0000 0000 /30 = 1111 1111.The safer . easier way to help you pass any IT exams. ✑ An anycast address is assigned to a group of interfaces.255.10.255.

SNMPv2c (the “c” stands for “community”) is an Experimental Internet Protocol defined in RFC 1901. with the first 127 bits being '0' and the 128th bit being '1'. defined in RFC 1157. :: C. 254. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. Because of these deficiencies.0. SNMPv2 added the GetNext protocol message to SNMP. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. easier way to help you pass any IT exams. SNMPv2 added the GetBulk protocol message to SNMP. +SNMPv2c – The community-string based Administrative Framework for SNMPv2. The security features provided in SNMPv3 are as follows: –Message integrity: Ensuring that a packet has not been tampered with in transit. C. SNMPv3 enhanced SNMPv2 security features.D Explanation: Cisco IOS software supports the following versions of SNMP: +SNMPv1 – The Simple Network Management Protocol: A Full Internet Standard. it is possible for nonauthorized users to exercise SNMP network management functions. –Encryption: Scrambling the contents of a packet prevent it from being learned by an unauthorized source. SNMPv3 added the GetBulk protocol messages to SNMP. ::1 B.Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three.) Security is based on community strings. It's just a single address. so could also be written as ::1/128. many SNMPv1/v2 implementations are limited to simply a read-only capability.) A. B. It is also possible for nonauthorized users to eavesdrop on management information as it passes from managed systems to the management system. ::1 This is a 128bit number. Answer: A. E.The safer . –Authentication: Determining that the message is from a valid source. 253.  E.E Explanation: SNMPv1/v2 can neither authenticate the source of a management message nor provide encryption. To correct the security deficiencies of 145 / 262 .0. D. RFC 1905.1? A. SNMPv3 added the Inform protocol message to SNMP. and RFC 1906. +SNMPv3 – Version 3 of SNMP. reducing their utility to that of a network monitor. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic). Without authentication. SNMPv2 added the Inform protocol message to SNMP. F.Which IPv6 address is the equivalent of the IPv4 interface loopback address 127. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098. and uses the community-based security model of SNMPv1. 0::/10 Answer: A Explanation: In IPv6 the loopback address is written as.C. Error Detection Answer: A.C. no network control applications can be supported. 2000::/3 D.

-> E is correct. 192. B. 192. The two additional messages are added in SNMP2 (compared to SNMPv1) GetBulkRequest The GetBulkRequest message enables an SNMP manager to access large chunks of data. 192. GetBulkRequest allows an agent to respond with as much information as will fit in the response PDU.168.  SNMPv1/v2.168. A new subnet with 60 hosts has been added to the network.56/26 B.64/26 D. SNMPv3 was issued as a set of Proposed Standards in January 1998.) InformRequest messages are generally used between NMS stations. Note: These two messages are carried over SNMPv3. A Syslog server provides the storage space necessary to store log files without using router disk space.1.168. 255. Enabling Syslog on a router automatically enables NTP for accurate time stamping.The safer . 8bits+ 8bits+ 8bits + 2bits = /26 /26 bits subnet is 24bits + 11000000 = 24bits + 192 256 – 192 = 64 0 -63 64 – 127 256. 192. Agents that cannot provide values for all variables in a list will send partial information.Refer to the exhibit. -> C is correct.) A.64/27 Answer: C Explanation: A subnet with 60 host is 2*2*2*2*2*2 = 64 -2 == 62 6 bits needed for hosts part. -> A is correct. The Syslog server automatically notifies the network administrator of network problems.1.Which three statements about Syslog utilization are true? (Choose three. 146 / 262 . InformRequest The InformRequest message allows NMS stations to share trap information. There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages. not between NMS stations and agents.168. E. (Traps are issued by SNMP agents when a device change occurs. easier way to help you pass any IT exams. D. C. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses? A.1. Therefore subnet bits are 2 bits (8-6) in fourth octet. Utilizing Syslog improves network performance.1.56/27 C.

a Cisco Catalyst 6500 switch running Cisco IOS Software Release 12. there are significantly more Syslog messages available within IOS as compared to SNMP Trap messages.0.  F. 10.0 /23 D. or prints them according to a simple configuration file.0." "Syslog daemon.3. 10. The Syslog receiver is commonly called "syslogd. 10.0.F Explanation: The Syslog sender sends a small (less than 1KB) text message to the Syslog receiver.0 /24 Answer: B Explanation: The 10.0.0.0. and 10.The safer . but has more than 6000 Syslog event messages.0 /21 B.2(18)SXF contains about 90 SNMP trap notification messages.html 257.1. Reference: http://www." or "Syslog server.0. Answer: C.0 networks. System logging is a method of collecting messages from devices to a server running a syslog daemon.0. Cisco devices can send their log messages to a UNIX-style syslog service.0 /22 C.com/c/en/us/products/collateral/services/highavailability/white_paper_c11-557812.0.Refer to the exhibit. easier way to help you pass any IT exams. A Syslog server helps in aggregation of logs and alerts. Logging to a central syslog server helps in aggregation of logs and alerts. While there are some exceptions. 147 / 262 .D.0.0. such as SSL wrappers. For example.0.0. and only those four networks. 10.0.0/22 subnet mask will include the 10.cisco. What is the most appropriate summarization for these routes? A. A syslog service accepts messages and stores them in files.0. port 5000).0. 10.0.2." Syslog messages can be sent via UDP (port 514) and/or TCP (typically. A Syslog server provides the storage space necessary to store log files without using router disk space.Refer to the exhibit. 10. this data is typically sent in clear text over the network. In general.0. 258.

168. GLBP is an open source standardized protocol that can be used with multiple vendors.20.30 Subnet Mask: 255.The safer . GLBP supports up to 1024 virtual routers.168. F. IP address: 192. The address is removed from the pool until the conflict is resolved.168. the router is assigned the first usable host address while the sales server is given the last usable host address.240 Default Gateway: 192. C.255.14 Subnet Mask: 255.An administrator must assign static IP addresses to the servers in a network. The IP will be shown.24/29.255.30 Subnet Mask: 255.20. DHCP checks for conflicts using ping and gratuitous ARP.24.255. the address is removed from the pool.168.20. GLBP supports clear text and MD5 password authentication between GLBP group members.20. GLBP elects two AVGs and two standby AVGs for redundancy.168. E.24. Answer: A Explanation: An address conflict occurs when two hosts use the same IP address.255. Only the IP detected by Gratuitous ARP is removed from the pool. Which of the following should be entered into the IP properties box for the sales server? A.25 (router) – 192.20. easier way to help you pass any IT exams.17 E.  Which rule does the DHCP server use when there is an IP address conflict? A.20.24/29 network.168.1 C.168.25 D. even after the conflict is resolved. (Reference: http://www.255.168. IP address: 192. D.248 Default Gateway: 192. GLBP supports up to eight virtual forwarders per GLBP group.168.168. For network 192. IP address: 192.20.) A. IP address: 192.255.9 B. GLBP can load share traffic across a maximum of four routers. the usable hosts are 192.30 Subnet Mask: 255.20.20. 260.255.0 Default Gateway: 192.20.248 Default Gateway: 192.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. B.168. The address remains in the pool until the conflict is resolved.html) 259. If a conflict is detected.255.254 Subnet Mask: 255.255. 148 / 262 .240 Default Gateway: 192.168.168.30 (used for the sales server).20. Only the IP detected by Ping is removed from the pool. The address will not be assigned until the administrator resolves the conflict. IP address: 192. C. B.What are three benefits of GLBP? (Choose three.168.255.cisco.20. E. During address assignment. D.25 Answer: C Explanation: For the 192.

168.0.0 networks.0.D.148.255.The safer .168.255 F. no ip access-class 102 out C. access-list 10 permit ip 192.255 C.147.149.255 D.1.255.148.168.0 and 192. 262. no ip access-group 102 in D.255.255 E. An attempt to deny web access to a subnet blocks all traffic from the subnet.146.0 255.Refer to the exhibit.146. and 192.0 and 192.148. access-list 10 permit ip 192.168.0 0.0.0 networks.148.168.0 0. and “access-list 10 permit ip 192.0.168.0 0.168.0 0. access-list 10 permit ip 192.0.168.146.0 0.) A. no ip access-class 102 in B. Which interface command immediately removes the effect of ACL 102? A.E 261.255 B. Infrastructure Security A network administrator is configuring ACLs on a Cisco router.0.149. easier way to help you pass any IT exams.168.  Answer: B.147.168.0 Answer: A.146.149.168.0.0. when combined. access-list 10 permit ip 192.168. would you use to accomplish this task? (Choose two.1. 192.146.255.1.0.C Explanation: “access-list 10 permit ip 192.168. to allow traffic from hosts on networks 192.0 0.255” would allow only the 192.0 only.168. 192.146.Topic 6.255” would allow only the 192.168.0 0. no ip access-group 102 out 149 / 262 .0.147.0. access-list 10 permit ip 192.168. Which two ACL statements. access-list 10 permit ip 192.1.

so “no ip access-group 102 out” will remove the effect of this ACL.1_19_ea1 /configuration/guide/swtrafc. +When you enable port security on an interface that is also configured with a voice VLAN. (Reference: http://www.A network administrator needs to configure port security on a switch. +The switch does not support port security aging of sticky secure MAC addresses. Which two statements are true? (Choose two. 263. by requiring entry of encrypted passwords for access to the device D. you must set the maximum allowed secure addresses on the port to at least two. +When a voice VLAN is configured on a secure port that is also configured as a sticky secure port. +If any type of port security is enabled on the access VLAN.  E. by encrypting passwords in the plain text configuration file C.How does using the service password-encryption command on a router provide additional security? A. trunk ports. easier way to help you pass any IT exams.1Q tunnel ports. +A secure port cannot be a dynamic access port. B. by automatically suggesting encrypted passwords for use in configuring the router Answer: B Explanation: 150 / 262 . no ip access-list 102 in Answer: D Explanation: The “ip access-group” is used to apply and ACL to an interface. +The protect and restrict options cannot be simultaneously enabled on an interface. When dynamic MAC address learning is enabled on an interface.The safer . all addresses seen on the voice VLAN are learned as dynamic secure addresses. From the output shown. The network administrator can apply port security to dynamic access ports.D Explanation: Follow these guidelines when configuring port security: +Port security can only be configured on static access ports. +You cannot configure static secure or sticky secure MAC addresses on a voice VLAN. Answer: C.) A.html) 264. or 802. E. The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN. +A secure port cannot be a destination port for Switched Port Analyzer (SPAN).com/en/US/docs/switches/lan/catalyst3550/software/release/12. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges E. we know that the ACL is applied to outbound traffic. The sticky learning feature allows the addition of dynamically learned addresses to the running configuration. up to the maximum defined. D. +A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group. the switch can learn new addresses. by encrypting all passwords passing through the router B. and all addresses seen on the access VLAN (to which the port belongs) are learned as sticky secure addresses. The network administrator can apply port security to EtherChannels. C.cisco. dynamic port security is automatically enabled on the voice VLAN.

With BPDU Guard.Refer to the exhibit. You can configure one access list.Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU? A. UplinkFast C. It means: +We cannot have 2 inbound access lists on an interface +We can have 1 inbound and 1 outbound access list on an interface 267. 151 / 262 . per direction. easier way to help you pass any IT exams. But if someone does not know he can accidentally plug that port to another switch and a loop may occur when BPDUs are being transmitted and received on these ports. You can apply multiple access lists with the same protocol or in different directions. BPDU Filter Answer: D Explanation: We only enable PortFast feature on access ports (ports connected to end stations).The safer . BackboneFast B.Which statement about access lists that are applied to an interface is true? A. per direction and per interface. This command is primarily useful for keeping unauthorized individuals from viewing your password in your configuration file 265. 266. Root Guard D. C. BPDU Guard E. You can place as many access lists as you want on any interface. per Layer 3 protocol.  By using this command. You can apply only one access list on any interface. it will be shut down to prevent a loop. B. D. Answer: C Explanation: We can have only 1 access list per protocol. all the (current and future) passwords are encrypted. when a PortFast receives a BPDU.

  A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. show interface D. B. Port security needs to be configured to shut down the interface in the event of a violation. list ip interface Answer: D 152 / 262 . If any other device is detected. which command would you use to verify which interfaces are affected by the ACL? A. show ip interface E. show ip access-lists B. and then observes the output from these two show commands. show access-lists C. 268. The port security configuration needs to be saved to NVRAM before it can become active. The administrator configured the interface and tested it with successful pings from PC_A to RouterA.When you are troubleshooting an ACL issue on a router. Also. C. Port security needs to be enabled on the interface.) A. E. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two. the maximum number of devices is set to 2 so this needs to be just one if we want the single host to have access and nothing else. the port is to drop frames from this device. Port security interface counters need to be cleared before using the show command. Answer: B. D.The safer .D Explanation: From the output we can see that port security is disabled so this needs to be enabled. F. Port security needs to be configured to allow only one learned MAC address. easier way to help you pass any IT exams. Port security needs to be globally enabled.

(Not all options are used.168.DRAG DROP. access-list 50 deny 192.1.1. Drag the security features on the left to the specific security risks they help protect against on the right. easier way to help you pass any IT exams.1 D.  Explanation: Incorrect answer: show ip access-lists does not show interfaces affected by an ACL.255 C.168. 153 / 262 . access list 101 deny tcp any host 192.) Answer: 270. 269.0. access-list 110 permit ip any any B.Refer to exhibit.1.1 eq 22 Answer: B Explanation: The standard access lists are ranged from 1 to 99 and from 1300 to 1999 so only access list 50 is a standard access list.168.Which item represents the standard IP ACL? A. access-list 2500 deny tcp any host 192. 271.0.The safer .1 0.

154 / 262 . Answer: C Explanation: The login keyword has been set.The safer . A Level 5 password is not set. but none set” message to users trying to telnet to this router.What will be the result if the following configuration commands are implemented on a Cisco switch? Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky A. The vty password is missing. 272. The console password is missing. A dynamically learned MAC address is saved in the startup-configuration file. What is the cause of this failure? A. B.  A network administrator cannot establish a Telnet session with the indicated router. D. easier way to help you pass any IT exams. C. but not password. An ACL is blocking Telnet access. This will result in the “password required.

How can the ACL statements be re-arranged so that the system works as intended? A. B. the command switchport port-security mac-address sticky enables sticky learning. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received. Statements A.128/28) from accessing the network. The user on host C should be able to use a web browser to access financial information from the Finance Web Server. A dynamically learned MAC address is saved in the VLAN database. include the subnet (B) and then finally the rest of the traffic (A). But as is. So. to prevent all hosts (except those whose addresses are the first and last IP of subnet 172.21. ACDB B.CORRECT TEXT. Then. and D of ACL 10 have been entered in the shown order and applied to interface E0 inbound. Answer: B Explanation: In the interface configuration mode. all other traffic should be allowed. No other hosts from the LAN nor the Core should be able to use a web browser to access this server. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received. E. D. C. BADC C. even if a more specific of better match is found later on in the access list. A network associate is adding security to the configuration of the Corp1 router. the ACL does not restrict anyone from the network. the interface converts all the dynamic secure MAC addresses to sticky secure MAC addresses. in this cast the two hosts in line C and D.The safer . easier way to help you pass any IT exams. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server.Refer to the exhibit. it it best to begin with the most specific entries first. 155 / 262 . 273.1. CDBA Answer: D Explanation: Routers go line by line through an access list until a match is found and then will not look any further. C. 274. When entering this command.  B. DBAC D. A dynamically learned MAC address is saved in the running-configuration file.

65.168.30. easier way to help you pass any IT exams.168.168.168.23.168. Answer:   156 / 262 .17 172.33. All other traffic is permitted. The Core connection uses an IP address of 198.33.1 ✑host B 192.  The task is to create and apply an access-list with no more than three statements that will allow ONLY host C web access to the Finance Web Server.33.168.242.33.196.242. Access to the router CLI can be gained by clicking on the appropriate host.22.242.1 192.33.254 ✑host A 192.3 ✑host D 192.33.22.4 The servers in the Server LAN have been assigned addresses of 172. All passwords have been temporarily set to "cisco".18. The computers in the Hosts LAN have been assigned addresses of 192.2 ✑host C 192. The Finance Web Server is assigned an IP address of 172.22. No other hosts will have web access to the Finance Web Server.The safer .

Refer to the exhibit.  275. 157 / 262 .The safer . easier way to help you pass any IT exams.

) A. D. will be forwarded out fa0/1.FFFF. What two functions will occur when this frame is received by 2950Switch? (Choose two. If you limit the number of secure MAC addresses to one and assign a single secure MAC address. Answer: B. but sticky MAC addresses can be learned dynamically.The safer . the first learned MAC address of 2950Switch.bbbb. Only host A will be allowed to transmit frames on fa0/1. C.aaaa will be forwarded out fa0/1. 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 The Ethernet frame that is shown arrives on interface fa0/1. You can use port security with dynamically learned and static MAC addresses to restrict a port's ingress traffic by limiting the MAC addresses that are allowed to send traffic into the port. the device attached to that port has the full bandwidth of the port.D Explanation: The configuration shown here is an example of port security. Port security with sticky MAC addresses retains dynamically learned MAC addresses during a link-down condition. the port does not forward ingress traffic that has source addresses outside the group of defined addresses. switch(config-if)#switchport mode trunk 158 / 262 . All frames arriving on 2950Switch with a destination of 0000. Only frames from source 0000. E. When you assign secure MAC addresses to a secure port. easier way to help you pass any IT exams.FFFF. Port security with sticky MAC addresses provides many of the same benefits as port security with static MAC addresses.00bb.  The following commands are executed on interface fa0/1 of 2950Switch. The MAC address table will now have an additional entry of fa0/1 FFFF.Which set of commands is recommended to prevent the use of a hub in the access layer? A. F. This frame will be discarded when it is received by 2950Switch. specifically port security using sticky addresses. B.00aa. 276. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1.

E. SW1#show port-security interface FastEthernet 0/12 E. Moreover. The most simple way to secure the virtual terminal interface is to configure a username & password to prevent unauthorized login. Configure a virtual terminal password and login process. C. 277. Create an access list and apply it to the virtual terminal interfaces with the access-group command. SW1#show switchport port-security interface FastEthernet 0/12 Answer: C. easier way to help you pass any IT exams. Answer: D.E Explanation: It is a waste to administratively shut down the interface.  switch(config-if)#switchport port-security maximum 1 B. Administratively shut down the interface.Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? (Choose two. configure the interface mode as the access mode Second.) A. The “access-group” command is only used to apply an access list to a physical interface -> C is not correct. B. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 C. SW1#show switchport port-secure interface FastEthernet 0/12 C. In order to satisfy the requirements of this question. To apply an access list to a virtual terminal interface we must use the “access-class” command. An example of the output of “show port-security interface” command is shown below: 159 / 262 . enable the port security and set the maximum number of connections to 1. Physically secure the interface. SW1#show running-config D.) A. D. SW1#show port-secure interface FastEthernet 0/12 B. 278. you should perform the following configurations in the interface mode: First.D Explanation: We can verify whether port security has been configured by using the “show runningconfig” or “show port-security interface” for more detail. Enter an access list and apply it to the virtual terminal interfaces using the access-class command. someone can still access the virtual terminal interfaces via other interfaces -> We cannot physically secure a virtual interface because it is “virtual” ->.The safer .What can be done to secure the virtual terminal interfaces on a router? (Choose two. switch(config-if)#switchport mode access witch(config-if)#switchport port-security mac-address 1 Answer: C Explanation: This question is to examine the layer 2 security configuration. switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 D.

efficient troubleshooting.g.bandwidth interfaces. view of application usage over the network.The safer .) A. Network. Accounting/Billing Answer: A. +User Monitoring and Profiling – NetFlow data enables network engineers to gain detailed understanding of customer/user utilization of network and application resources. +Network Planning – NetFlow can be used to capture data over a long period of time producing the opportunity to track and anticipate network growth and plan upgrades to increase the number of routing devices.  279. Application & User Monitoring B. or higher. Security Analysis D.D Explanation: NetFlow traditionally enables several key customer applications including: +Network Monitoring – NetFlow data enables extensive near real time network monitoring capabilities. Flow-based analysis techniques may be utilized to visualize traffic patterns associated with individual routers and switches as well as on a network-wide basis (providing aggregate traffic or application based views) to provide proactive problem detection. Web server sizing and VoIP deployment) to responsively meet customer demands. ports. backbone upgrade planning. backbone and application resources as well as to detect and resolve potential security and policy violations. +Application Monitoring and Profiling – NetFlow data enables network managers to gain a detailed. NetFlow services data optimizes network planning including peering.C. This information is used to plan. NetFlow helps to minimize 160 / 262 . Infrastructure Management What are the benefits of using Netflow? (Choose three. Network Planning C. easier way to help you pass any IT exams. and allocate network and application resources (e. and rapid problem resolution. and routing policy planning. This information may then be utilized to efficiently plan and allocate access.Topic 7. understand new services. time-based.

It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. STP creates a loop-free tree structure consisting of leaves and branches that span the entire Layer 2 network. capacity.) for highly flexible and detailed resource utilization accounting. B. bandwidth usage. In addition. Answer: D Explanation: Spanning-Tree Protocol (STP) is a Layer 2 protocol that utilizes a special-purpose algorithm to discover physical loops in a network and effect a logical loop-free topology. 281. For less than a minute. quality of service. NetFlow detects unwanted WAN traffic. packet and byte counts. Enterprise customers may utilize the information for departmental charge-back or cost allocation for resource utilization. A problem with network connectivity has been observed. What would be an effect of this cable being disconnected? A. type-of-service and application ports. The data is also a valuable forensic tool to understand and replay the history of security incidents. The actual mechanics of how bridges communicate and how the STP algorithm works will be discussed at length in the following topics. application usage. +Accounting/Billing – NetFlow data provides fine-grained metering (e. viruses and worms in real-time. Service providers may utilize the information for billing based on time-of-day. timestamps. Changes in network behavior indicate anomalies that are clearly demonstrated in NetFlow data. validates bandwidth and Quality of Service (QOS) and allows the analysis of new network applications. D. connections between switches are assumed to be trunks. +Security Analysis – NetFlow identifies and classifies DDOS attacks. C.g.  the total cost of network operations while maximizing network performance. etc. flow data includes details such as IP addresses. Host B would not be able to access the server in VLAN9. easier way to help you pass any IT exams. Communication between VLAN3 and the other VLANs would be disabled.What command visualizes the general NetFlow data on the command line? 161 / 262 . and reliability. etc. 280.Refer to the exhibit. The transfer of files from Host B to the server in VLAN9 would be significantly slower. NetFlow will give you valuable information to reduce the cost of operating your network. Note that the terms bridge and switch are used interchangeably when discussing STP. unless otherwise indicated. Then normal network function would resume. Host B would not be able to access the server in VLAN9 until the cable is reconnected.The safer .

a view of the protocol distribution statistics and the NetFlow cache. basic statistics about number of flows and export timer setting. One of the top talkers commands uses a static configuration to view top talkers in the network and another command called dynamic top talkers allows real-time sorting and aggregation of NetFlow data. Reference: http://www. show ip flow export B.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900ae cd80406232. Information provided includes packet size distribution. show ip cache flow D. The traditional show command for NetFlow is "show ip cache flow" also available are two forms of top talker commands. show ip flow top-talkers C. There are three methods to visualize the data depending on the version of Cisco IOS Software. easier way to help you pass any IT exams.html 282. 162 / 262 .Refer to the exhibit.cisco. show mls netflow ip Answer: C Explanation: The following is an example of how to visualize the NetFlow data using the CLI. The following is the original NetFlow show command used for many years in Cisco IOS Software. Also shown is a show MLS command to view the hardware cache on the Cisco Catalyst 6500 Series Switch. The “show ip cache flow” command displays a summary of the NetFlow accounting statistics.  A. show mls sampling E.The safer .

session layer E.  An administrator pings the default gateway at 10.1 and sees the output as shown.10. easier way to help you pass any IT exams. data link layer B. access layer D. which is a network layer protocol used to propagate control message between host and router. application layer C. 163 / 262 .10. 283. The command ping is often used to verify the network connectivity. At which OSI layer is the problem? A. so it works at the network layer. Click the console connected to RouterC and issue the appropriate commands to answer the questions.An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. network layer Answer: E Explanation: The command ping uses ICMP protocol.The safer .

The safer . easier way to help you pass any IT exams.  164 / 262 .

easier way to help you pass any IT exams.  165 / 262 .The safer .

easier way to help you pass any IT exams.  166 / 262 .The safer .

167 / 262 . Correctly assign an IP address to interface fa0/1. easier way to help you pass any IT exams.The safer .  Which will fix the issue and allow ONLY ping to work while keeping telnet disabled? A.

C. easier way to help you pass any IT exams. D. Change the ip access-group command on fa0/0 from “in” to “out”.DRAG DROP.The safer . Answer: E Explanation: Let’s have a look at the access list 104: The question does not ask about ftp traffic so we don’t care about the two first lines. Drag each category on the left to its corresponding router output line on the right. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Remove access-group 106 in from interface fa0/0 and add access-group 115 in. Remove access-group 106 in from interface fa0/0 and add access-group 104 in. 284.  B. Remember that the access list 104 is applied on the inbound direction so the 5th line “access-list 104 deny icmp any any echo-reply” will not affect our icmp traffic because the “echo-reply” message will be sent over the outbound direction. Not all categories are used. Remove access-group 102 out from interface s0/0/0 and add access-group 114 in E. Each router output line is the result of a show ip interface command. Answer: Explanation: 168 / 262 .

There is only one special case with the statement “…. In this case.The safer . we know that the port is currently disabled and shut down by the administrators. line protocol is down”.An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. from the output “Serial0/1 is up. is administrator down. so you have to check Layer 1 before checking Layer 2. 169 / 262 . line protocol is down” we know that it is a layer 2 problem because the first statement (Serial0/1 is up) is good while the last statement (line protocol is down) is bad. 285. For the statement “Serial0/1 is down. Click the console connected to RouterC and issue the appropriate commands to answer the questions. line protocol is down”.  A simple way to find out which layer is having problem is to remember this rule: “the first statement is for Layer 1. both layers are down so the problem belongs to Layer 1. the last statement is for Layer 2 and if Layer 1 is down then surely Layer 2 will be down too”. easier way to help you pass any IT exams. For example.

easier way to help you pass any IT exams.  170 / 262 .The safer .

The safer .  171 / 262 . easier way to help you pass any IT exams.

  172 / 262 .The safer . easier way to help you pass any IT exams.

173 / 262 . No host could connect to RouterC through s0/0/1.The safer . easier way to help you pass any IT exams.  What would be the effect of issuing the command ip access-group 115 in on the s0/0/1 interface? A.

easier way to help you pass any IT exams. echo.4. FTP. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.  B. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. Only traffic from the 10. Answer: A Explanation: First let’s see what was configured on interface S0/0/1: 286. C.The safer . and www would work but telnet would fail.Scenario Refer to the topology.0 network would pass through the interface. 174 / 262 . D. Telnet and ping would work but routing updates would fail.4. FTP-DATA.

  175 / 262 . easier way to help you pass any IT exams.The safer .

easier way to help you pass any IT exams.  176 / 262 .The safer .

easier way to help you pass any IT exams.  177 / 262 .The safer .

Answer: C Explanation: The “show ip ospf interface command on R3 and R5 shows that the hello and dead intervals do not match. There is a missing network command in the OSPF process on R5.  An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. There is an area ID mismatch. IP SLA 178 / 262 . B. 287. There is an OSPF hello and dead interval mismatch. WCCP C. Netflow B. What is causing the problem? A. easier way to help you pass any IT exams.The safer .Which protocol can cause overload on a CPU of a managed device? A. There is a PPP authentication issue. D. C. a password mismatch. They are 50 and 200 on R3 and 10 and 40 on R5.

which is configured for the flow monitor and stored in the flow monitor cache.0. switches. easier way to help you pass any IT exams. Note: A managed device is a part of the network that requires some form of monitoring and management (routers.  D. printers…). servers. 288. 179 / 262 . Interface S0/0 on RouterB is administratively down. The cable that is connected to S0/0 on RouterA is faulty. flow sampler D. the following example creates a flow monitor named FLOW-MONITOR-1 and enters Flexible NetFlow flow monitor configuration mode: Router(config)# flow monitor FLOW-MONITOR-1 Router(config-flow-monitor)# 289.) A.2.0 are unable to reach hosts in network 192. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record.168.The safer . workstations. For example.168. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface. flow record C. flow exporter Answer: A Explanation: Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring. You can determine the cause of high CPU use in a router by using the output of the show process cpu command.3. flow monitor B. SNMP Answer: D Explanation: Sometimes.Refer to the exhibit. B. Flow monitors consist of a record and a cache. You add the record to the flow monitor after you create the flow monitor. Based on the output from RouterA.What Netflow component can be applied to an interface to track IPv4 traffic? A. Hosts in network 192. what are two possible reasons for the failure? (Choose two. messages like this might appear in the router console: %SNMP-3-CPUHOG: Processing [chars] of [chars] They mean that the SNMP agent on the device has taken too much time to process a request.

The IP address that is configured on S0/0 of RouterB is not in the correct subnet. B. D. R2. R2 and R3 are connected to the switches SW1 and SW2. C. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. If the devices produced the given output. SW1 and SW2 are also connected to the routers R4 and R5. Use the appropriate show commands to troubleshoot the issues. Answer: E. 291. You are required to troubleshoot and resolve the EIGRP issues between the various routers. but the line protocol is down. respectively. 290. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. D. F. There could be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU. E. 180 / 262 . Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.  C. Interface S0/0 on RouterA is configured with an incorrect subnet mask. SW1's Fa0/1 interface is administratively shut down. Your company has connected the routers R1. and R3 with serial links.The safer .Refer to the exhibit. Based on the output shown. easier way to help you pass any IT exams. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.F Explanation: From the output we can see that there is a problem with the Serial 0/0 interface. what is the cause of the EtherChannel problem? A. SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. Answer: D Explanation: You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. The EIGRP routing protocol is configured.Scenario Refer to the topology. It is enabled.

  181 / 262 . easier way to help you pass any IT exams.The safer .

The safer .  182 / 262 . easier way to help you pass any IT exams.

easier way to help you pass any IT exams.  183 / 262 .The safer .

The safer . easier way to help you pass any IT exams.  184 / 262 .

and 10.4.4.4.  The loopback interfaces on R4 with the IP addresses of 10.6/32 are not appearing in the routing table of R5. R4 has been incorrectly configured to be in another AS.0 network is displayed. so they are not being advertised.The safer . B.5/32.0. Answer: B Explanation: 185 / 262 . D.4. Why are the interfaces missing? A. C.4. The interfaces are shutdown. The loopback addresses haven't been advertised.4/32. and the network command is missing on R4.4. 10. easier way to help you pass any IT exams. Automatic summarization is enabled. so it does not peer with R5. so only the 10.0.

1.2. the following must match: -Neighbors must be in the same subnet -K values -AS numbers -Authentication method and key strings Here.2.224.1. Configure the IP address of Host A as 10. Configure the masks on both hosts to be 255.255.2. Configure the gateway on Host A as 10.) A. 186 / 262 . 292.254. we see that R4 is configured for EIGRP AS 2.1. D.The safer .  For an EIGRP neighbor to form. E.1. Configure the IP address of Host B as 10.2.255. C. Which of the following will correct the problems? (Choose two. B.1.1. Configure the gateway on Host B as 10. The network shown in the diagram is experiencing connectivity problems.Refer to the exhibit. easier way to help you pass any IT exams.2. when it should be AS 1.

254 The IP information of member Host B in VLAN2 is as follows: Address : 10.255.1.126 Mask : 255. Click the console connected to RouterC and issue the appropriate commands to answer the questions.0 Gateway : 10.255.D Explanation: The switch 1 is configured with two VLANs: VLAN1 and VLAN2.1.1.255.1.12 Mask : 255.240.The safer .1. The layer3 addressing information of Host B should be modified as follows: Address : 10.2.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong.10.1.0 Gateway : 10.254/24 VLAN1 Fa0/0. 187 / 262 .255.0 293.2.1.2 -.X Mask : 255.  F.255. The IP information of member Host A in VLAN1 is as follows: Address : 10.1.1.1.1.255. easier way to help you pass any IT exams.1. Answer: B.255.10.254 The configuration of sub-interface on router 2 is as follows: Fa0/0.1 -.255.An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. Configure the masks on both hosts to be 255.

easier way to help you pass any IT exams.The safer .  188 / 262 .

  189 / 262 . easier way to help you pass any IT exams.The safer .

  190 / 262 . easier way to help you pass any IT exams.The safer .

The safer . easier way to help you pass any IT exams. Attempts to telnet to the router would fail. 191 / 262 .  What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface? A.

4. easier way to help you pass any IT exams.0 network.  B. Routing protocol updates for the 10.4.0.4. It would allow all traffic from the 10. IP traffic would be passed through the interface but TCP and UDP traffic would not.4. Answer: B Explanation: From the output of access-list 114: access-list 114 permit ip 10.4. D.255 any we can easily understand that this access list allows all traffic (ip) from 10.The safer . You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.4. C. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. 192 / 262 .4.0.Scenario Refer to the topology.0 network would not be accepted from the fa0/0 interface.0 0.4.0/24 network 294.

The safer .  193 / 262 . easier way to help you pass any IT exams.

The safer . easier way to help you pass any IT exams.  194 / 262 .

  195 / 262 .The safer . easier way to help you pass any IT exams.

There is a PPP authentication issue. D.The safer . 196 / 262 . B. Answer: D Explanation: Using the show running-config command we see that R6 has been incorrectly configured with the same router ID as R3 under the router OSPF process. The R3 router ID is configured on R6. There is an OSPF hello and dead interval mismatch. There is an area ID mismatch. What is causing the problem? A. the username is not configured on R3 and R6.  An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. C. easier way to help you pass any IT exams.

You are required to troubleshoot and resolve the EIGRP issues between the various routers. respectively.Scenario Refer to the topology. SW1 and SW2 are also connected to the routers R4 and R5. easier way to help you pass any IT exams. R2.The safer . The EIGRP routing protocol is configured. and R3 with serial links. 197 / 262 .  295. Your company has connected the routers R1. R2 and R3 are connected to the switches SW1 and SW2. Use the appropriate show commands to troubleshoot the issues.

easier way to help you pass any IT exams.  198 / 262 .The safer .

The safer .  199 / 262 . easier way to help you pass any IT exams.

  200 / 262 .The safer . easier way to help you pass any IT exams.

1.1 network. Success rate is 0 percent (0/5) Why are the pings failing? A.5.1. The IP address that is configured on the Lo1 interface on R5 is incorrect. easier way to help you pass any IT exams.1. timeout is 2 seconds: Packet sent with a source address of 10.1.1 network statement is missing on R1.1.1 Type escape sequence to abort. When looking at the EIGRP configuration on R1.55. The network statement is missing on R1.5.The safer . Answer: C Explanation: R5 does not have a route to the 10. 201 / 262 . 100-byte ICMP Echos to 10. C.5.1. Sending 5. D. The loopback interface is shut down on R5. B.  Study the following output taken on R1: R1# Ping 10.1. which is the loopback0 IP address of R1.5.1. The network statement is missing on R5.1 ……. we see that the 10.55 source 10.

easier way to help you pass any IT exams.The safer . 202 / 262 .  296.Refer to the exhibit.

Answer: B. Ensure the switch has power.D. Ensure cable A is plugged into a trunk port. D. Reboot all of the devices. 203 / 262 . easier way to help you pass any IT exams. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.  The two connected ports on the switch are not turning orange or green. Ensure that cables A and B are straight-through cables. C.The safer . B. E.Scenario: Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. 297. Reseat all cables.F Explanation: The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type.) A. F. power and how they are plugged in. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.

easier way to help you pass any IT exams.The safer .  204 / 262 .

easier way to help you pass any IT exams.  205 / 262 .The safer .

easier way to help you pass any IT exams.  206 / 262 .The safer .

  R1 does not form an OSPF neighbor adjacency with R2. R1 ethernet0/1 is shutdown. configure no ip ospf hello-interval 25. configure no ip ospf hello-interval 25. R1 ethernet0/1 configured with a non-default OSPF hello interval of 25. Which option would fix the issue? A.The safer . Configure no shutdown command. R2 ethernet0/1 and R3 ethernet0/0 are configured with a non-default OSPF hello interval of 25. configure ip ospf 1 area 0 command under ethernet0/1. B. easier way to help you pass any IT exams. Answer: B 207 / 262 . Enable OSPF for R1 ethernet0/1. C. D.

The EIGRP routing protocol is configured.  Explanation: Looking at the configuration of R1. and R3 with serial links.The safer . we see that R1 is configured with a hello interval of 25 on interface Ethernet 0/1 while R2 is left with the default of 10 (not configured). R2 and R3 are connected to the switches SW1 and SW2. You are required to troubleshoot and resolve the EIGRP issues between the various routers. respectively. Your company has connected the routers R1. SW1 and SW2 are also connected to the routers R4 and R5. 298.Scenario Refer to the topology. R2. 208 / 262 . Use the appropriate show commands to troubleshoot the issues. easier way to help you pass any IT exams.

easier way to help you pass any IT exams.The safer .  209 / 262 .

easier way to help you pass any IT exams.The safer .  210 / 262 .

The safer , easier way to help you pass any IT exams. 

211 / 262

The safer , easier way to help you pass any IT exams. 

212 / 262

The safer , easier way to help you pass any IT exams. 

A. The K values mismatch.
B. The AS does not match.
C. The network command is missing.
D. The passive interface command is enabled.
Answer: C
Explanation:
The link from R1 to R6 is shown below: As you can see, they are both using e0/0. The IP addresses are in
the 192.168.16.0 network:

213 / 262

The safer , easier way to help you pass any IT exams. 

But when we look at the EIGRP configuration, the “network 192.168.16.0” command is missing on R6.
214 / 262

The safer , easier way to help you pass any IT exams. 

299.What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network
performance?
A. SNMP
B. Netflow
C. WCCP
D. IP SLA
Answer: B
Explanation:
Netflow can be used to diagnose slow network performance, bandwidth hogs and bandwidth utilization
quickly with command line interface or reporting tools.
Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios
netflow/prod_white_paper0900aecd80406232.html
300.What are the three things that the Netflow uses to consider the traffic to be in a same flow? (Choose
three)
A. IP address
B. Interface name
C. Port numbers
D. L3 protocol type
E. MAC address
Answer: A,C,D
Explanation:
What is an IP Flow? Each packet that is forwarded within a router or switch is examined for a set of IP
packet attributes. These attributes are the IP packet identity or fingerprint of the packet and determine if
the packet is unique or similar to other packets. Traditionally, an IP Flow is based on a set of 5 and up to 7
IP packet attributes. IP Packet attributes used by NetFlow:
+IP source address
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D.168.198. show interfaces Answer: A. show ip route E. ping B.F Explanation: Ping.168.100.  +IP destination address +Source port +Destination port +Layer 3 protocol type +Class of Service +Router or switch interface 301.17 – 192.) A.18.Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three. ipconfig. and show interfaces are all valid troubleshooting IOS commands. Tracert. show ip route.184. ✑The appropriate static routes have also been configured (since the company will be a stub network. easier way to help you pass any IT exams. ipconfig D. no routing protocol will be required) ✑All passwords have been temporarily set to “cisco”. not IOS.The safer .184.105 .18. The task is to complete the NAT configuration using all IP addresses assigned by the ISP to provide Internet access for the hosts in the Weaver LAN. Functionality can be tested by clicking on the host provided for testing. tracert C. and winipcfg are PC commands. ✑✑✑ ✑ 302 CORRECT TEXT.110/29 inside local addresses . Configuration information: router name – Weaver inside global addresses – 198.100.30/28 number of inside hosts – 14 216 / 262 . winipcfg F. The following have already been configured on the router: ✑The basic router configuration ✑The appropriate interfaces have been configured for NAT inside and NAT outside.192.

The hosts in the company LAN have been assigned private space addresses in the range of 192. The company has 14 hosts that need to access the internet simultaneously.105 198. easier way to help you pass any IT exams.168.110.30.The safer . Answer: 217 / 262 .18.168.100.18. The ISP has provided the company six public IP addresses of 198.17 – 192.  A network associate is configuring a router for the weaver company to provide internet access.100.184.184.

easier way to help you pass any IT exams. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.Scenario: Refer to the topology.The safer . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.  303. 218 / 262 .

The safer . easier way to help you pass any IT exams.  219 / 262 .

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easier way to help you pass any IT exams.The safer .  221 / 262 .

Refer to the exhibit. There is an OSPF hello and dead interval mismatch.  An OSPF neighbor adjacency is not formed between R3 in the main office and R4 in the Branch1 office. easier way to help you pass any IT exams. 222 / 262 . What is causing the problem? A. There is a Layer 2 issue. The R3 router ID is configured on R4. B.The safer . There is an area ID mismatch. an encapsulation mismatch on serial links. D. Answer: A Explanation: A show running-config command on R3 and R4 shows that R4 is incorrectly configured for area 2: 304. C.

  A network administrator attempts to ping Host2 from Host1 and receives the results that are shown. According to the topology.77.com has recently added the ENG router. the ENG router does not have connectivity to the ISP router. Answer: C Explanation: Host1 tries to communicate with Host2.com has a small network that is using EIGRP as its IGP. F.21 ENG Fa0/0 – 192. easier way to help you pass any IT exams. CCNA. CCNA. The message destination host unreachable from Router1 indicates that the problem occurs when the data is forwarded from Host1 to Host2.CORRECT TEXT. Router MGT is also running static routing to the ISP. MGT Fa0/0 – 192.168. The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.168. The default gateway on Host1 is incorrect. What is the problem? A.6 S0/0 – 192.50.9 S0/1 – 192. B. The link between Host1 and Switch1 is down. IP addresses are listed in the chart below. Interface Fa0/0 on Router1 is shutdown. E.33 S1/0 – 198. All routers should be running an EIGRP AS number of 12.The safer . Access to the router CLI can be gained by clicking on the appropriate host.168.18.12.168.34 Fa1/0 – 192. TCP/IP is not functioning on Host1 C.168. All passwords on all routers are cisco. All over interconnectivity and Internet access for the existing locations of the company are working properly.77. we can infer that the link between Router1 and Router2 is down.0.27. Currently. The link between Switch1 and Router1 is down.17 223 / 262 . D. The link between Router1 and Router2 is down. 305.

33 Fa0/1 – 192.22 Answer: On the MGT Router: 224 / 262 .168.1 Parts1 Fa0/0 – 192.The safer .49 S0/0 – 192.10 Parts2 Fa0/0 – 192.168.  Fa0/1 – 192.50.12.27.168.168. easier way to help you pass any IT exams.12.12.81 S0/1 – 192.12.65 Fa0/1 – 192.168.168.168.12.

0 306. easier way to help you pass any IT exams. The address of SwitchA is a subnet address.Refer to the exhibit.168.168. B. Assuming routing is properly configured.168. D. C.1. To identify applications causing congestion.168. B. E. Answer: D Explanation: Now let’s find out the range of the networks on serial link: For the network 192. The Fa0/0 interface on RouterB is using a broadcast address. HostA cannot ping HostB. The serial interfaces of the routers are not on the same subnet. 307.62/27: Increment: 32 Network address: 192.168.168.  Config t Router eigrp 12 Network 192.32 Broadcast address: 192.95 -> These two IP addresses don’t belong to the same network and they can’t see each other.168.64 Broadcast address: 192.1.1.63 For the network 192.77. 225 / 262 . To authorize user network access.65/27: Increment: 32 Network address: 192.1.1.1. The Fa0/0 interface on RouterA is on a subnet that can't be used. HostA is not on the same subnet as its default gateway.The safer . what is the cause of this problem? A.What are three reasons to collect Netflow data on a company network? (Choose three.) A.

0. 1. To detect suboptimal routing in the network. secret password is cisco The password to access user EXEC mode using the console is cisco2 The password to allow telnet access to the router is cisco3 IPV4 addresses must be configured as follows: Ethernet network 209. bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. Answer: A. The password to allow telnet access to the router is xxx 5.165. Central Florida Widgets recently installed a new router in their office. To report and alert link up / down instances.F Explanation: NetFlow facilitates solutions to many common problems encountered by IT professionals. please note the following. Configure the router per the following requirements: Name of the router is R2 Enable. D.0/27 . understand who is utilizing the network and the network top talkers.router has last assignable host address in the subnet. Password In access user EXEC mode using the console is xxx 4. +Reduction in peak WAN traffic Use NetFlow statistics to measure WAN traffic improvement from application-policy changes.201. +Validation of QoS parameters Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over. +Security and anomaly detection NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC. easier way to help you pass any IT exams. secret password is xxx 3. Router protocol is RIPV2 Attention: In practical examinations.-> F is correct. E.D.2. and bandwidth utilization. Enable.  C. bandwidth hogs. Name or the router is xxx 2. IP information 226 / 262 .176/28 . +Troubleshooting and understanding network pain points Diagnose slow network performance.or under-subscribed. +Detection of unauthorized WAN traffic Avoid costly upgrades by identifying the applications causing congestion. -> D is correct. F. 308. +Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions.CORRECT TEXT. -> A is correct.router has fourth assignable host address in subnet Serial network is 192. To diagnose slow network performance. Interfaces should be enabled. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service. the actual information will prevail.The safer .

SW1 and SW2 are also connected to the routers R4 and R5. R2 and R3 are connected to the switches SW1 and SW2. Your company has connected the routers R1.  Answer: 309. respectively.Scenario Refer to the topology.The safer . R2. easier way to help you pass any IT exams. The EIGRP routing protocol is configured. and R3 with serial links. You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues. 227 / 262 .

The safer .  228 / 262 . easier way to help you pass any IT exams.

easier way to help you pass any IT exams.The safer .  229 / 262 .

  230 / 262 . easier way to help you pass any IT exams.The safer .

The safer .  231 / 262 . easier way to help you pass any IT exams.

Then. D. The traffic is unequally load-balanced over R2 and R3.A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. using the “show ip route” command on R1 we can see that to reach 10.5. 310. B.5. The traffic is equally load-balanced over R2 and R3.  Which path does traffic take from R1 to R5? A.5. Answer: A Explanation: Using the “show ip int brief command” on R5 we can see the IP addresses assigned to this router.55 the preferred path is via Serial 1/3. C.The safer . The routers cannot establish an adjacency relationship on their common Ethernet link.5. easier way to help you pass any IT exams.5 and 10. 232 / 262 . The traffic goes through R3. which we see from the diagram is the link to R2. The traffic goes through R2.

F. 233 / 262 . easier way to help you pass any IT exams. when a dual ring topology is in use Answer: D Explanation: If we connect two switches via 2 or more links and do not enable STP on these switches then a loop (which creates multiple copies of the same unicast frame) will occur. E. in an improperly implemented redundant topology E. A network associate is adding security to the configuration of the Corp1 router. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server. The OSPF area is not configured properly. D. 311. The dead interval is also set to 20 on R1 but it is 40 on R2. all other traffic should be allowed. B. during high traffic periods B. The user on host C should be able to use a web browser to access financial information from the Finance Web Server.In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN? A. after broken links are re-established C. Answer: D Explanation: In OSPF.The safer . The cost on R1 should be set higher. A backup designated router needs to be added to the network. No other hosts from the LAN nor the Core should be able to use a web browser to access this server.CORRECT TEXT. C. Based on the information in the graphic. It is an example of an improperly implemented redundant topology. the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. when upper-layer protocols require high reliability D. The OSPF process ID numbers must match.  The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. The priority on R1 should be set higher. The hello and dead timers are not configured properly. what is the cause of this problem? A. 312.

168. No other hosts will have web access to the Finance Web Server. easier way to help you pass any IT exams.254 ✑host A 192.168. All other traffic is permitted.1 ✑host B 192.168.2 ✑host C 192.247.) A.The safer . All passwords have been temporarily set to "cisco".What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three. CPU utilization B.240.1 192.240.18.168.65 The computers in the Hosts LAN have been assigned addresses of 192. Access to the router CLI can be gained by clicking on the appropriate host. where Netflow data will be sent 234 / 262 .240.168. The Core connection uses an IP address of 198.  The task is to create and apply an access-list with no more than three statements that will allow ONLY host C web access to the Finance Web Server.3 Answer: 313.240.240.

egress interface D. source/destination ports. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets.The safer . number of devices exporting Netflow data D. Some symptoms of high CPU utilization are very large jitter and increased delay.B.) A. Reference: http://searchenterprisewan. port availability E. Another thing to keep in mind is the amount of data you're going to be sending across the network.What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three.cisco. Reference: http://www. source IP address B. source MAC address C. IP next-hop Answer: A. For example. destination IP address F. IP Packet attributes used by NetFlow: •IP source address •IP destination address •Source port •Destination port •Layer 3 protocol type •Class of Service Router or switch interface All packets with the same source/destination IP address.techtarget. Cisco's performance testing seems to indicate that newer hardware can accommodate this load pretty well. an IP Flow is based on a set of 5 and up to 7 IP packet attributes. Also bear in mind that the flows from aggregating large numbers of devices can add up. you may not want to send NetFlow data from a datacenter switch to a NetFlow collector on the other side of a small WAN circuit. protocol interface and class of service are grouped into a flow and then packets and bytes are tallied.com/tip/How-the-NetFlow-protocolmonitors-your-WAN 314. the traffic can be substantial. SNMP version F. Depending on how much traffic you have and how you configure it. Services running on the device may also be affected.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900ae cd80406232. ingress interface E.C Explanation: NetFlow has a reputation for increasing CPU utilization on your network devices.html 235 / 262 . This methodology of fingerprinting or determining a flow is scalable because a large amount of network information is condensed into a database of NetFlow information called the NetFlow cache.D.  C.E Explanation: Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. but you will still want to check it out before you turn on the feature. WAN encapsulation Answer: A. easier way to help you pass any IT exams. Traditionally.

straight-through. microsoft.0. For example. For your information. If it works then the NIC card (layer 1. the PC’s IP is in the same network with the gateway… Verifying the URL by typing in your browser some popular websites like google. Based on the layered approach to troubleshooting and beginning with the lowest layer. Answer: Explanation: The question asks us to “begin with the lowest layer” so we have to begin with Layer 1: verify physical connection.com. 2) and TCP/IP stack (layer 3) are working properly. A user is unable to connect to the Internet. “verify Ethernet cable connection” means that we check if the type of connection (crossover. the RJ45 headers are plugged in.DRAG DROP.0.1. in this case an Ethernet cable connection. checking if the IP can be assignable for host.  315. Verify IP configuration belongs to layer 3.com to assure that the far end server is not down (it sometimes make we think we can’t access to the Internet). Mixed Questions 236 / 262 . easier way to help you pass any IT exams. We are using a URL so this step belongs to layer 7 of the OSI model.The safer . We do this by simply making a ping to the loopback interface 127. drag each procedure on the left to its proper category on the right. the signal on the cable is acceptable… Next we “verify NIC operation”. rollover…) is correct. Topic 8.

The safer . such as the Cisco Discovery Protocol (CDP). so mismatches may be disguised by collisions. The interface is configured with the shutdown command. principally wired Ethernet The protocol is formally referred to by the IEEE as Station and Media Access Control Connectivity Discovery specified in IEEE 802. Answer: A. Late collisions occur after every 237 / 262 . C. It is best used for small-scale deployments. It requires more resources than other routing methods. Port security has disabled the interface. capabilities. Extreme Discovery Protocol. D. It is a Cisco proprietary protocol.3-2012 section 6 clause 79. and neighbors on an IEEE 802 local area network. 1-Gbps interfaces are full-duplex by default. 318. E. Answer: B Explanation: LLDP runs over the Data Link Layer. C. The serial interface is disabled.C 319. It is configured in global configuration mode. It is best used for large-scale deployments. Nortel Discovery Protocol (also known as SONMP). D. Routers can use update messages to reroute when links fail. There is a duplex mismatch. It uses consistent route determination. The interface displays a connected (up/up) state even when the duplex settings are mismatched. Foundry Discovery Protocol (FDP). so devices that use different Network so Answer D is wrong LLDP or Link Layer Discovery Protocol is vendor neutral. Routing is disrupted when links fail. easier way to help you pass any IT exams.Which statement about LLDP is true? A. F.1AB[2] and IEEE 802. Answer: A. F.B 317. D. Autonegotiation is disabled.  316.What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two. The symptoms of a duplex mismatch may be intermittent. It runs over the transport layer. E.) A. The device at the other end of the connection is powered off.) A. The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity. C. C. B. this feature was implemented to handle special collision situations where the switch detected excessive or late collisions on a port.Which condition does the err-disabled status indicate on an Ethernet interface? A. LLDP performs functions similar to several proprietary protocols. B. The LLDP update frequency is a fixed value. E. The interface is fully functioning. B. B. and Microsoft's Link Layer Topology Discovery (LLTD).B. Excessive collisions occur when a frame is dropped because of encountering 16 collisions in a row.Which three statements about static routing are true? (Choose three. Answer: A Explanation: Causes of errDisable At first. Full-duplex interfaces use CSMA/CD logic. D.

320. the lowest IP address among its active interfaces 238 / 262 .Which command is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols? A. For example on the catalyst 6500 running catOS. Remember. Secret enable c1sc0 C.  device on the wire should have recognized that the wire was in use. wrong type. Only half-duplex connections should ever have collisions in a LAN. there were more ways that a port could become error-disabled. the highest IP address among its active interfaces D. Enable password c1sc0 B. An error-disabled port is a symptom of a deeper problem that must be resolved.Which command sets and automatically encrypts the privileged enable mode password? A. collisions are normal for half-duplex. transport type all B. a bad network interface card (NIC) card (with physical problems. easier way to help you pass any IT exams. transport output all C. as long as they do not exceed a small percentage of traffic. defective). the IP address of the console management interface C. Password enable c1sc0 D. As the capabilities of the CatOS grew. These types of errors could be caused by a cable that is out of specification (too long. the IP address of the first Fast Ethernet interface B. transport input all Answer: D 322.If all OSPF routers in a single area are configured with the same priority value. what value does a router use for the OSPF router ID in the absence of a loopback interface? A. due to the Carrier-Sense Multi-Access (CSMA) nature of Ethernet. the Errdisable feature is supported for these connectivity issues: ✑ARP inspection ✑Broadcast suppression ✑BPDU port-guard ✑Channel misconfiguration ✑Crossbar failure ✑Duplex mismatch ✑Layer 2 protocol tunnel misconfiguration ✑Layer 2 protocol tunnel threshold exceeded ✑UDLD The error-disable function allows the switch to shut down a port when it encounters any of these situations. as long as one determines and resolves its root cause. This last cause is common because of failures to negotiate the speed and duplex properly between two directly connected devices (for example.The safer . transport preferred all D. or a port duplex misconfiguration. a NIC card connected to a switch). or driver problems). a port being error-disabled is not by itself a cause for alarm. Enable secret c1sc0 Answer: D 321.

B. Answer: A.) A.  E. 323. D.C 324. E. If that particular interface has more then one IP address. Routes are updated when a change in topology occurs. They are sourced from the configured IPv6 interface address. Updates are sent to a broadcast address. the router ID will be the first active interface that comes up on the router. show ip bgp paths D. D. A valid route to the destination address is missing from the routing table.Which three statements about link-state routing are true? (Choose three. SW1(config-line)#exec-timeout 10 C. The tunnel address is routed through the tunnel itself. then the highest address will be selected as the Router ID. show ip route Answer: A 327. E.B. In the event that no loopback interface is configured.) A. show ip community-list C. The ISP is blocking the traffic. Updates are sent to a multicast address by default. B. It uses split horizon. SW1(config-line)#absolute-timeout 0 10 D. C. The tunnel interface IP address is misconfigured. C.B 325. D. SW1(config-line)#exec-timeout 0 10 B. RIP is a link-state protocol. F. B. The advertised prefix length must be 64 bits.Which two statements about IPv6 router advertisement messages are true? (Choose two. The advertised prefix length must be 48 bits.The safer .Which command can you enter to verify that a BGP connection to a remote device is established? A. SW1(config-line)#absolute-timeout 10 Answer: A 326.Which three circumstances can cause a GRE tunnel to be in an up/down state? (Choose three. the priority value until a loopback interface is configured Answer: C Explanation: Ordinarily the loopback interface would be selected as the router ID. Their destination is always the link-local address of the neighboring node.Which command can you execute to set the user inactivity timer to 10 seconds? A. 239 / 262 . OSPF is a link-state protocol. The tunnel interface is down. E.) A. They use ICMPv6 type 134. show ip bgp summary B. Answer: A. C. easier way to help you pass any IT exams.

) A. site-to-site VPN E. This means that a static route or PBR forwarding of packets via the GRE tunnel interface remains in effect even though the GRE tunnel packets do not reach the other end of the tunnel. provides common view of entire topology B. interface down and mis-routed tunnel destination) are problems local to the router at the tunnel endpoints and do not cover problems in the intervening network.The safer . WiMax B. utilizes event-triggered updates E. DSLAM F. DHCP C. ✑The route to the tunnel destination address is through the tunnel itself.Which three characteristics are representative of a link-state routing protocol? (Choose three. calculates shortest path D. This is true even if the other side of the tunnel has not been configured. there were only three reasons for a GRE tunnel to shut down: ✑There is no route to the tunnel destination address. municipal Wi-Fi D. ✑The interface that anchors the tunnel source is down.D 330. Keepalives on the GRE tunnel interface are used in order to solve this issue in the same way as keepalives are used on physical interfaces. CMTS Answer: A.C. Answer: B. but are lost before they reach the other end of the tunnel. Before GRE keepalives were implemented.  F.B. utilizes frequent periodic updates Answer: A. satellite Internet C.Which protocol advertises a virtual IP address to facilitate transparent failover of a Cisco routing device? A. exchanges routing tables with neighbors C. RSMLT D.What are three broadband wireless technologies? (Choose three. For example. these rules do not cover the case in which the GRE tunneled packets are successfully forwarded. even though an alternate route that uses PBR or a floating static route via another interface is potentially available. These three rules (missing route. ESRP 240 / 262 .) A.D Explanation: Normally.C. The tunnel destination IP address must also be routable.C 329. easier way to help you pass any IT exams. FHRP B. This causes data packets that go through the GRE tunnel to be "black holed". 328. An ACL is blocking the outbound traffic. a GRE Tunnel interface comes up as soon as it is configured and it stays up as long as there is a valid tunnel source address or interface which is up.

2001::1/127 is used for loopback addresses. F. E.Which technology allows a large number of private IP addresses to be represented by a smaller number of public IP addresses? A. They are usually at least 10 times faster than analog modem connections. B. D. FC00::/7 is used in private networks. a switch with priority 12288 Answer: A 335. D. RFC 1631 D. a switch with priority 4096 D.If primary and secondary root switches with priority 16384 both experience catastrophic losses. show vlan C. Answer: A.C 336. E. a switch with priority 8192 C.The safer . C.  Answer: A 331. easier way to help you pass any IT exams. They require a WiMax tower within 30 miles of the user location.C 334. They are usually faster than cable and DSL connections.) A.What are three characteristics of satellite Internet connections? (Choose three. NAT B. They are frequently used by rural users without access to other high-speed connections. C.B. show ip interface brief B. FE80::/10 is used for link-local unicast. show interfaces D. which tertiary switch can take over? A. show interface switchport Answer: A 332. FF00:/8 is used for IPv6 multicast. FE80::/8 is used for link-local unicast. F.Which three statements about IPv6 prefixes are true? (Choose three. NTP C. RFC 1918 Answer: A 333. Answer: A. FEC0::/10 is used for IPv6 broadcast.) A.Which command can you enter to determine whether a switch is operating in trunking mode? A.B. a switch with priority 20480 B.Which command can you enter to display the hits counter for NAT traffic? 241 / 262 . Their upload speed is about 10 percent of their download speed. B. They use radio waves to communicate with cellular phone towers.

enable secret password C.0 0.) A. It enables port address translation. vty password D.0. username password Answer: B. so Telnet uses vty for connecting a remote Cisco switch.  A. router(config-router)#default-information originate D. Only southbound APIs allow program control of the network.255 GigabitEthernet0/1 C. show ip nat statistics B. Router(config)#username jdone privilege 15 password 0 08314D5D1A48 D. router(config)#ip route 0.0.0.The safer . C. Answer: A 340. easier way to help you pass any IT exams. B. 338.0.Which two statements about northbound and southbound APIs are true? (Choose two. It enables the outside interface to forward traffic. Router(config)#username jdone privilege 1 password 7 PASSWORD1 C. 242 / 262 .Which two passwords must be supplied in order to connect by Telnet to a properly secured Cisco switch and make changes to the device configuration? (Choose two.255.Which command can you enter to configure a local username with an encrypted password and EXEC mode user privileges? A. B. router(config)#ip route 0.) A.0 255. debug ip nat C. D. router(config-router)#default-information originate always Answer: A 341. clear ip nat statistics Answer: A 337. It enables the inside interface to receive traffic. tty password B.0. Router(config)#username jdone privilege 1 password 7 08314D5D1A48 B. It enables the use of a secondary pool of IP addresses when the first pool is depleted.Which command can you enter to set the default route for all traffic to an interface? A.0 GigabitEthernet0/1 B. console password F.255. show ip debug nat D. Only northbound APIs allow program control of the network.What is the effect of the overload keyword in a static NAT translation configuration? A. For access security.0. Router(config)#username jdone privilege 15 password 0 PASSWORD1 Answer: A 339. aux password E. the vty password and enable password must be configured.C Explanation: Telnet presents a potential security risk.

209. your applications will make network policy decisions.e. F.automates the configuration of advanced IWAN features on Cisco 4000 Series Integrated Service Routers.18.C Explanation: APIC-EM Northbound InterfaceThe APIC-EM Northbound Interface is the only API that you will need to control your network programmatically.3 243 / 262 . Access to the router CLI can be gained by clicking on the appropriate host.78. ✑The Core connection uses an IP address of 198.EM works with legacy Cisco legacy products. When you use the APIC-EM API.65. You have been tasked to create and apply a numbered access list to a single outbound interface. ✑ Plug and Play (PnP) . The APIC-EM API provides you with the ability to think about your network at a higher policy level rather than how to implement that policy.  C.78.168. POST.2 ✑host C 192. and hosts.delivers zero-touch deployment of Cisco Enterprise Network routers. GET.168.78. The API is function rich and provides you with an easy-to-use. ✑ All hosts in the Core and on local LAN should be able to access the Public Web Server. Thus you tell the network what you want (i. The APIC-EM GA release focus’s on the following key customer applications: ✑ Intelligent WAN (IWAN) . PUT. A corporation wants to add security to its network. Southbound Interfaces are implemented with a Service Abstraction Layer (SAL) which speak to network elements using SNMP and CLI (Command Line Interface) of the elements that make up the network. host A 192. The APIC-EM API is REST based and thus you will discover and control your network using HTTP protocol with HTTP verbs (i.254. 342. ✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. easier way to help you pass any IT exams. Answer: B. This access list can contain no more than three statements that meet these requirements. the policy) and the controller figures out how to implement that policy for you. and DELETE) with JSON syntax.168.e.168. ✑ Path Trace . Only southbound API interfaces use a Service Abstraction Layer.The safer . CORRECT TEXT. interfaces. D. programmatic control of your network elements.1 ✑host B 192. The requirements are: ✑ Host C should be able to use a web browser (HTTP) to access the Finance Web Server. Only northbound API interfaces use a Service Abstraction Layer.78.. E.78. The use of the SNMP and CLI ensures that APIC.1 – 192. ✑ Other types of access from host C to the Finance Web Server should be blocked.168. ✑The computers in the Hosts LAN have been assigned addresses of 192. Southbound InterfacesAlthough APIC-EM only exposes its Northbound Interfaces as an API. it is important that you understand how the Southbound Interface is built.. which will then be implemented by the APIC-EM Controller through its Southbound Interfaces. ✑All passwords have been temporarily set to “cisco”. Both northbound and southbound API interfaces use a Service Abstraction Layer. switches and wireless controllers (including Wireless Access Points).eases and accelerates the task of computing end-to-end application flow path. Both northbound and southbound APIs allow program control of the network. Future APIC-EM releases will leverage other southbound technology such as NetConf as they become available.

The safer .146.17. ✑The Public Web Server in the Server LAN has been assigned an address of 172.78.18.22.168. 244 / 262 .146.22.  ✑host D 192.4 The Finance Web Server has been assigned an address of 172. easier way to help you pass any IT exams.

easier way to help you pass any IT exams.The safer .  245 / 262 .

easier way to help you pass any IT exams.The safer .  246 / 262 .

In which three ways is an IPv6 header simpler than an IPv4 header? (Choose three.) A. IPv6 headers use the Fragment Offset field in place of the IPv4 Fragmentation field. E. IPv6 uses an extension header instead of the IPv4 Fragmentation field. B. IPv6 headers use a smaller Option field size than IPv4 headers. Unlike IPv4 headers. 247 / 262 .  Answer: 343. C. D. IPv6 headers eliminate the IPv4 Checksum field. IPv6 headers have a fixed length. easier way to help you pass any IT exams.The safer .

E. mini-IOS D.The safer .E 346. logging host ip-address C. D. used in troubleshooting. GLBP C. C.Which standards-based First Hop Redundancy Protocol is a Cisco supported alternative to Hot Standby Router Protocol? A. It supports significantly higher transmission speeds than UDP. Answer: A 349.Refer to the exhibit.  F.What are three characteristics of the TCP protocol? (Choose three. Answer: B.C. terminal monitor D.Which condition indicates that service password-encryption is enabled? A. DHCP Answer: A 345.txt E. ROMMON mode Answer: A 348. It requires applications to determine when data packets must be retransmitted.C 347. no logging console B. bootstrap B. F. The local username password is encrypted in the configuration. B. The connection is established before data is transmitted. easier way to help you pass any IT exams. can enable debug output to a remote location? (Choose two) A. It uses separate SYN and ACK messages to establish a connection. The enable secret is encrypted in the configuration.B. TFTP D.Which two Cisco IOS commands.) A. show logging | redirect flashioutput. It ensures that all data is transmitted and received by the remote device. C. The local username password is in clear text in the configuration. 248 / 262 .C 344. The enable secret is in clear text in the configuration. B. Answer: A. and IPv4 headers use an 8-bit TTL field. POST C.Which step in the router boot process searches for an IOS image to load into the router? A. It uses a single SYN-ACK message to establish a connection. D. VRRP B. IPv6 headers use a 4-bit TTL field. snmp-server enable traps syslog Answer: B.

If the primary root bridge experiences a power loss. ATM B.0BC0. It configures an active management interface. IOS D.3DC6 D. global configuration mode B. privileged EXEC mode C. CARP Answer: A 351. switch 00E0.E 353. HSRP B. D. switch 0040.What are two benefits of private IPv4 IP addresses? (Choose two.  What is the effect of the given configuration? A.Which protocol is the Cisco proprietary implementation of FHRP? A. It configures the default VLAN. IDS C. C. user EXEC mode D. SDM Answer: B. switch 0004.) A. easier way to help you pass any IT exams. It configures the native VLAN. switch 00E0.9A1A.F726.6BE3 C.Which two security appliances will you use in a network? (Choose two.) 249 / 262 .F90B. IOX E. VRRP C.C182 B.The safer . auxiliary setup mode Answer: B 352. B. GLBP D. It configures an inactive switch virtual interface.90C5 Answer: A 354. which switch takes over? A. Answer: A 350. IPS F.The enable secret command is used to secure access to which CLI mode? A.

E. D. C. 355. It supports EAP authentication for connecting to wireless networks. and the personal computers within an organizations are usually assigned private IP addresses.After you configure the Loopback0 interface. locate an IOS image for booting C. It provides encrypted multiprotocol support. They are routed the same as public IP addresses.  A. When a computer is assigned a private IP address. To allow direct access to a local device which is assigned a private IP address. B. They are less costly than public IP addresses. It ensures that user activity is fully anonymous. C. They eliminate the necessity for NAT policies. There are three IP blocks (1 class A.The safer . tablets and smartphones sitting behind your home. the browser cache Answer: A 356. easier way to help you pass any IT exams. a Network Address Translator (NAT) should be used. the ISP local cache D. set the configuration register Answer: A 357.Which statement about RADIUS security is true? A.What is the purpose of the POST operation on a router? A. Router#show ip interface brief Answer: A 358. the operating system cache C. but uses your router's public IP address to communicate. Router#show run C. the local devices sees this computer via it's private IP address. B. a recursive DNS search B. 1 class B and 1 class C) reserved for a private use. They can be assigned to devices without Internet connections. which command can you enter to verify the status of the interface and determine whether fast switching is enabled? A.What is the authoritative source for an address lookup? A. Answer: A. Router#show interface loopback 0 D.C Explanation: What is private IP address?A private IP address is the address space allocated by InterNIC to allow organizations to create their own private network. The computers. A network printer residing in your home is assigned a private address so that only your family can print to your local printer. the devices residing outside of your local network cannot directly communicate via the private IP address. 250 / 262 . enable a TFTP server D. determine whether additional hardware has been added B. They eliminate duplicate IP conflicts. Device-administration packets are encrypted in their entirety. Router#show ip interface loopback 0 B. However. D.

Define inside and outside interfaces.25 PAD connection TACACS+ offers multiprotocol support.1 and later and other device software. Which two statements are true about the loopback address that is configured on RouterB? (Choose two. UNIX login. In addition. ✑A client. B. any user passwords are sent encrypted between the client and RADIUS server.The safer . Client/Server Model A network access server (NAS) operates as a client of RADIUS.What is the first step in the NAT configuration process? A. D. and other authentication mechanisms. Answer: A 360. which is never sent over the network. RADIUS servers are responsible for receiving user connection requests. RADIUS comprises three components: ✑A protocol with a frame format that utilizes User Datagram Protocol (UDP)/IP. easier way to help you pass any IT exams. Network Security Transactions between the client and RADIUS server are authenticated through the use of a shared secret. it can support PPP.  Answer: A Explanation: RADIUS Background RADIUS is an access server that uses AAA protocol. and returning all configuration information necessary for the client to deliver service to the user. The client is responsible for passing user information to designated RADIUS servers. Define IP address pools. authenticating the user. Define public and private IP addresses. Password Authentication Protocol (PAP). The RADIUS servers can act as proxy clients to other kinds of authentication servers. ✑A server. RADIUS does not support these protocols: ✑AppleTalk Remote Access (ARA) protocol ✑NetBIOS Frame Protocol Control protocol ✑Novell Asynchronous Services Interface (NASI) ✑X. This eliminates the possibility that someone snooping on an unsecured network could determine a user's password.) 251 / 262 . while the clients reside in the dial-up access servers and can be distributed throughout the network. Define global and local interfaces. Flexible Authentication Mechanisms The RADIUS server supports a variety of methods to authenticate a user. C.Refer to the exhibit. 359. It is a system of distributed security that secures remote access to networks and network services against unauthorized access. The server runs on a central computer typically at the customer's site. or Challenge Handshake Authentication Protocol (CHAP). Cisco has incorporated the RADIUS Client into Cisco IOS Software Release 11. When it is provided with the user name and original password given by the user. and then acting on the response that is returned.

show ip cache flow C.The safer . Answer: B. B. D. It ensures that data will be forwarded by RouterB. show ip flow export B.B 362. ip flow ingress D.0. ip flow-export destination Answer: A. It decreases the metric for routes that are advertised from RouterB. the highest IP address of all active router’s physical interfaces will be chosen. interface ethernet 0/0 F. E.Which two features can dynamically assign IPv6 addresses? (Choose two. IPv6 stateless autoconfiguration 252 / 262 .Which two commands can you enter to verify that a configured NetFlow data export is operational? (Choose two.0. easier way to help you pass any IT exams. It indicates that RouterB should be elected the DR for the LAN. It specifies that the router ID for RouterB should be 10. + If a loopback interface is not defined. It provides stability for the OSPF process on RouterB.1. ip flow egress E. C.) A. -> The loopback interface will be chosen as the router ID of RouterB – 361.C Explanation: Explanation A loopback interface never comes down even if the link is broken so it provides stability for the OSPF process (for example we use that loopback interface as the router-id) -The router-ID is chosen in the order below: + The highest IP address assigned to a loopback (logical) interface.) A.  A.

exactly one active router B. D. Switch#show ip interface brief C. Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten. TFTP Answer: A 364. intra-VLAN routing using a Layer 3 switch Answer: A 366. inter-VLAN routing using a Layer 3 switch B. inter-VLAN routing using a Layer 2 switch C. SFTP C. one or more backup virtual routers D. C.B 367. one or more standby routers C. IPv6 stateful autoconfiguration E. Physically secure network equipment from potential access by unauthorized individuals.  B. intra-VLAN routing using router on a stick D.Which NAT function can map multiple inside addresses to a single outside address? A.Which technology can enable multiple VLANs to communicate with one another? A.B 363. Allow users to develop their own approach to network security. Minimize network overhead by deactivating automatic antivirus client updates. 253 / 262 . Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported E. easier way to help you pass any IT exams.The safer .Which command can you enter to view the ports that are assigned to VLAN 20? A. DHCP C. ARP E. RARP D.What should be part of a comprehensive network security plan? A. exactly one standby active router E. Switch#show vlan id 20 B. Switch#show interface vlan 20 D. PAT B. Switch#show ip interface vlan 20 Answer: A 365. NHRP D. ISATAP tunneling Answer: A.) A. B.What are two requirements for an HSRP group? (Choose two. exactly one backup virtual router Answer: A.

The safer .B 371. it is critical that each party to the network take appropriate measures to ensure that its system will not be physically breached. thereby compromising the entire network. external global F. switch-mdf-c1#hostname switch-mdf1 D. successive packet loss D. software. Physical security procedures may be the least expensive to implement but can also be the most costly if not implemented. 254 / 262 .  Answer: B Explanation: Computer systems and networks are vulnerable to physical attack. therefore. switch-mdf-c1(config)#hostname switch-mdf1 B.Refer to the exhibit. external local Answer: A. packet loss B. steal. easier way to help you pass any IT exams. jitter C. inside private D. round-trip time latency Answer: D 370. and information. or corrupt computer equipment. 368. switch-mdf-c1>hostname switch-mdf1 C. outside private E. inside global C.Which command can you use to set the hostname on a switch? A. Physical access to a system or network provides the opportunity for an intruder to damage. When computer systems are networked with other departments or agencies for the purpose of sharing information.) A.Which two types of NAT addresses are used in a Cisco NAT device? (Choose two. inside local B. The most expensive and sophisticated computer protection software can be overcome once an intruder obtains physical access to the network. procedures should be implemented to ensure that systems and networks are physically secure. switch-mdf-c1(config-if)#hostname switch-mdf1 Answer: A 369.Which function of the IP SLAs ICMP jitter operation can you use to determine whether a VoIP issue is caused by excessive end-to-end time? A.

B. D. They rely on external firewalls for WLAN security. B. telnet C.  What is the result of setting the no login command? A. They can simplify the management and deployment of wireless LANs.Which interface counter can you use to diagnose a duplex mismatch problem? A. or security settings at any time through centralized provisioning and management. ping D. deferred F. operations. easier way to help you pass any IT exams. Respond to organizational growth with the Cisco scale-as-it-grows licensing model. no password is required for telnet access. CRC errors E. C.E Explanation: Simplified OperationsCisco wireless controllers reduce operational expenses by simplifying network deployment. C. Configure wireless policy. One PolicyIncrease security with context-based control and user-specific services with a single source of 255 / 262 . Telnet access requires a new password. ping ipv6 Answer: C 373. giants D. runts Answer: B 374.Which command can you enter to verify that a 128-bit address is live and responding? A. Answer: D 372. Answer: A. traceroute B.) A. and management. Telnet access is denied. They can manage mobility policies at a systemwide level. available with all Cisco wireless controllers. D. They must be configured through a GUI over HTTP or HTTPS.Which two statements about wireless LAN controllers are true? (Choose two. E. They are best suited to smaller wireless networks.The safer . late collisions C. management. Telnet access requires a new password at the first login. no earner B.

allowing data to be transferred over the PPP link within PPPoE headers. D. easier way to help you pass any IT exams. the PPP Session phase B.What is the danger of the permit any entry in a NAT access list? A. Answer: A 376. they occur after the 512th bit of the frame has been transmitted. Scan Timer Answer: A 377. C.html 378.cisco. It prevents the correct translation of IP addresses on the inside network. Once the link setup is completed.  business policy across wired. PPPoE functions as a Layer 2 encapsulation method. During this phase. TTD D. 256 / 262 . MSTP B. Hop Count E. It can lead to overloaded resources on the router.Which two statements about late collisions are true? (Choose two. the Active Discovery phase D.com/c/en/us/td/docs/security/asa/asa92/configuration/vpn/asavpn-cli/vpn-pppoe. D. and remote access. the PPPoE client locates a PPPoE server. Hop Limit B.Which spanning-tree protocol rides on top of another spanning-tree protocol? A. Phase 1 Answer: A Explanation: PPPoE is composed of two main phases: Active Discovery Phase: In this phase. They indicate received frames that did not pass the FCS match. a Session ID is assigned and the PPPoE layer is established. wireless. They may indicate a duplex mismatch. PPP options are negotiated and authentication is performed. Reference: http://www. They are frames that exceed 1518 bytes.Which IPv6 header field is equivalent to the TTL? A. B.The safer . RSTP C. PPP Session Phase: In this phase. B. By definition. Mono Spanning Tree Answer: A 379. called an access concentrator. PVST+ D.During which phase of PPPoE is PPP authentication performed? A. It can disable the overload command. Phase 2 C. Flow Label C. C. the Authentication phase E. It can cause too many addresses to be assigned to the same interface. 375.) A.

Which user-mode password has just been set? A. This is the only technique that achieves this level of accuracy. RSVP Answer: D Explanation: When implemented on all nodes in the path. Answer: A. easier way to help you pass any IT exams. listening 257 / 262 . Router(config)# boot system tftp c7300-js-mz.B 380.Which three commands can you use to set a router boot image? (Choose three.bin C.124-24. Router(config)# boot system flash c4500-p-mz.bin Answer: A. They occur when CRC errors and interference occur on the cable.SB8a.bin D. SSH D. Auxiliary C.) A.Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two. 381.bin E.C 383. Router(config)#boot bootldr bootflash:c4500-jk9s-mz. round robin D. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin F. Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin B. Router(config)#boot system rom c7301-advipservicesk9-mz.B. Console Answer: A 382.The safer .Which feature can you implement to reserve bandwidth for VoIP calls across the call path? A.122-33. blocking B.Refer to the exhibit.) A.T4.122-23f. PQ B.121-20. RSVP guarantees bandwidth for the call along the entire path for the entire duration of the call. Telnet B. CBWFQ C.  E.

Which switching method duplicates the first six bytes of a frame before making a switching decision? A. Only advantage of this method is speed. B.0.Which logging command can enable administrators to correlate syslog messages with millisecond precision? A. learning D. 1 B. logging host 10. Only the enable secret password will be encrypted. no logging console B. 385. This is the fastest method of switching. As a result. ASIC switching Answer: C Explanation: Cut and Through Cut and Through method has lowest latency. Only passwords configured after the command has been entered will be encrypted. how many broadcast domains are present on the router? A. These six bytes are the destination address of frame. 8 Answer: C 387. console. If the service password-encryption is used. In this method Switch only read first six bytes from frame after the preamble.B 384. E. 4 D. logging buffered 4 C.What is the effect of using the service password-encryption command? A. forwarding E. cut through switching D.2. D. store and-forward switching C. Use the show run command to show most passwords in clear text.  C. service timestamps log datetime msec E. fragment-free switching B.The safer . 386. Answer: B Explanation: Enable vty. the security of device access is improved.If a router has four interfaces and each interface is connected to four switches.21 Answer: D 258 / 262 . 2 C. C. all the passwords are encrypted. discarding Answer: A. easier way to help you pass any IT exams. It will encrypt the secret password and remove the enable secret password from the configuration. Only the enable password will be encrypted. It will encrypt all current and future passwords. This method also processes invalid frames. no logging monitor D. AUX passwords are configured on the Cisco device.

255.0. but IETF recommendations suggest the use of lower case letters. show ip dhcp database 10.255.[1] Thus.0. show ip dhcp binding 10.The safer .0/20 to a specific interface? A.0.255.0 255. fd15::db8::700:3:400F:527B C. router(config)#ip route 192.0 GigabitEthernet0/1 Answer: A 389.2. each group representing 16 bits (two octets). eliminating parts of the representation.0.D 390.0. B. An example of an IPv6 address is: 2001:0db8:85a3:0000:0000:8a2e:0370:7334 The hexadecimal digits are case-insensitive. E. easier way to help you pass any IT exams.  388.E Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.2.0. D.0.0. fd15:0db8:0000:0000:700:3:400F:527B B. router(config)#ip route 0. Leased lines provide highly flexible bandwidth scaling. fd15:db8:0::700:3:4F:527B D.2.0 GigabitEthernet0/1 C.255. Leased lines provide inexpensive WAN access. the example address can be further simplified: 2001:db8:85a3::8a2e:370:7334 391.Which command can you enter to route all traffic that is destined for 192.0. fd15:db8::700:3:400F:572B Answer: D. Answer: C.0 0. fd15:0db8::7:3:4F:527B E. show ip dhcp server statistics D.0 GigabitEthernet0/1 B.Which command can you enter to display duplicate IP addresses that the DHCP server assigns? A. router(config)#ip route 0. Leading zeroes Leading zeroes in a group may be omitted.0 255. The full representation of eight 4-digit groups may be simplified by several techniques.0 GigabitEthernet0/1 D.12 259 / 262 .12 C. F.In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two.) A.0. Leased lines require little installation and maintenance expertise. the example address may be written as: 2001:db8:85a3:0:0:8a2e:370:7334 Groups of zeroes One consecutive group of zero value may be replaced with a single empty group using two consecutive colons (::).[1] Thus.12 B.168.168.255. router(config)#ip route 192.0. show ip dhcp conflict 10.Which two statements about using leased lines for your WAN infrastructure are true? (Choose two.240.0. Multiple leased lines can share a router interface. Leased lines support up to T1 link speeds. The groups are separated by colons (:).0 255.168.) A. C. Leased lines with sufficient bandwidth can avoid latency between endpoints.

B. Answer: A.) A. and BGP are the only routing protocols that support IPv6. E. D. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport trunk allowed vlan 20 Answer: A 394. EIGRP.  Answer: A 392. It uses a minimum amount of network bandwidth. 393.Which two statements about IPv6 and routing protocols are true? (Choose two. Switch(config)#vlan 20 Switch(config)#Interface gig x/y Switch(config-if)#switchport access vlan 20 B. It is the most efficient way to deliver data to multiple receivers. OSPF. It burdens the source host without affecting remote hosts. Link-local addresses are used to form routing adjacencies. easier way to help you pass any IT exams. Switch(config)#Interface gig x/y Switch(config-if)#vlan 20 Switch(config-vlan)#switchport access vlan 20 C. D. stock quotes. corporate communications. Applications that take advantage of multicast include video conferencing. IP multicast delivers application source traffic to multiple receivers without burdening the source or the receivers while using a minimum of network bandwidth.) A. resulting in the most efficient delivery of data to multiple receivers. Answer: D. B.E Explanation: IP multicast is a bandwidth-conserving technology that reduces traffic by simultaneously delivering a single stream of information to potentially thousands of corporate recipients and homes.Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch? A. Loopback addresses are used to form routing adjacencies. and news. distance learning. EIGRPv3 was developed to support IPv6 routing. E.Which two statements about IPv4 multicast traffic are true? (Choose two.B 260 / 262 . C.The safer . Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport access vlan 20 E. It simultaneously delivers multiple streams of data. and distribution of software. It is bandwidth-intensive. C. Multicast packets are replicated in the network at the point where paths diverge by Cisco routers enabled with Protocol Independent Multicast (PIM) and other supporting multicast protocols. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport trunk native vlan 20 D. OSPFv3 was developed to support IPv6 routing.

0/25 C.Which type of device can be replaced by the use of subinterfaces for VLAN routing? A.Which feature builds a FIB and an adjacency table to expedite packet forwarding? A.Which command can you enter to determine whether serial interface 0/2/0 has been configured using HDLC encapsulation? A. router Answer: D Explanation: The only way to get off a layer two network segment is through a layer three device. 172. outside local C.0/24 D. 172. router#\show ip interface brief Answer: C 398. So let’s say for example you have a single switch with 5 different VLAN’s and machines on each VLAN.1.The safer . 396. process switching C. in which case each VLAN would require its own router to get out of that layer two network to a different layer two network. easier way to help you pass any IT exams.What is the correct routing match to reach 172.1. Cisco Express Forwarding B. A Sub-Interface is a logical interface partitioned off from a physical interface. A sub-interface allows you to have multiple interface configurations on a single physical interface. cut-through Answer: A 399. router#show interfaces Serial 0/2/0 C.16. fast switching D. inside local E.1. inside global D. Layer 2 switch C.Which type of address is the public IP address of a NAT device? A. router#show platform B.0/26 B.5/32? A. outside global B.1.16. Layer 2 bridge B. outside public 261 / 262 . In this lab you’ll use sub-interfaces to match the VLAN’s in the trunk to allow for interfaces in each VLAN and accomplish inter-vlan routing for the hosts as the router has an interface in each layer three network.16. Layer 3 switch D.16.  395. 172. the default route Answer: A 397. commonly referred to as a Default Gateway for host machines. router#show ip interface s0/2/0 D.

The most secure implementation of PortFast is to enable it only on ports that connect end stations to switches.  F. It goes into a down/down state. E.B 401. 262 / 262 . C. It specifies IPv6 as the transport protocol. It becomes the root bridge for the configured VLAN. D. spanning tree loops can occur because BPDUs are still being transmitted and received on those ports. PortFast BPDU guard prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port. It goes into an errdisable state. C. Because PortFast can be enabled on nontrunking ports connecting two switches. the PortFast mode is supported only on nontrunking access ports because these ports typically do not transmit or receive BPDUs. Answer: D Explanation: Understanding How PortFast BPDU Guard Works To prevent loops from occurring in a network. It continues operating normally.) A. spanning tree shuts down PortFast-configured interfaces that receive BPDUs instead of putting them into the spanning tree blocking state. In a valid configuration. PortFastconfigured interfaces do not receive BPDUs. easier way to help you pass any IT exams.Which two statements about the tunnel mode ipv6ip command are true? (Choose two.When an interface is configured with PortFast BPDU guard. inside public Answer: C 400. B. how does the interface respond when it receives a BPDU? A. an invalid configuration exists. When you enable BPDU guard on the switch. Answer: A. BPDU guard provides a secure response to invalid configurations because the administrator must manually put the interface back in service. It specifies that the tunnel is a Teredo tunnel.The safer . It enables the transmission of IPv6 packets within the configured tunnel. It specifies IPv6 as the encapsulation protocol. It specifies IPv4 as the encapsulation protocol. D. If a PortFast-configured interface receives a BPDU. B.

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