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

What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two.16.7 7.34.) A. The number of collision domains would remain the same.0c89.  Explanation: Source Mac AddressDestination Mac AddressSource IP addressDestination MAC address MAC 0000. C.21.3333MAC 0000.The safer .Refer to the exhibit. D.0c89.16. B. The number of broadcast domains would remain the same. easier way to help you pass any IT exams. The number of collision domains would decrease. 7 / 262 .9999 IP 172.250IP 172. The number of collision domains would increase.

however. we have TWO broadcast domains. 8. But only the DHCP Server will answer to the Request. a broadcast domain can contain multiple collision domains. F. Answer: C. you generally have one collision domain to a PC. The Client is asking for a IP Address.The safer . this is ONE Collision Domain.D Explanation: Basically.A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. For example. With switches. if a router stands between all these devices. we have 5 Collision domains. switch or bridge. easier way to help you pass any IT exams. 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). we have one collision domain more. broadcasts can traverse collision domains freely. if they are connected with a repeater. don't allow broadcasts through by default. this meant you had a lot of collisions. all these devices are in ONE Broadcast domain (assuming a single VLAN). 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. Routers. Broadcast domains are exactly what they imply: they are network segments that allow broadcasts to be sent across them. Collision Domain: Each connection from a single PC to a Layer 2 switch is ONE Collision domain. The simple way to look at it is this way: switches break up collision domains. transport 8 / 262 . If this switch is connected to another switch or a router. so when a broadcast hits a router (or the perimeter of a VLAN). hub) will reside in ONE single collision domain. a collision domain is a network segment that allows normal network traffic to flow back and forth. These days. session D. while routers (and VLANs) break up collision domains and broadcast domains.  E. but a collision domain can never have more than one broadcast domain associated with it. hub. If 5 Devices are connected to a Hub. you break up collision domains by switching packets bound for other collision domains. application B. it doesn't get forwarded. and the other devices in the domain listen to the network in order to avoid data collisions.or call them VLANs). So the client sends a DHCP Discover packet to EVERY PC in the local subnet (Broadcast). but the client does not know how to reach the DHCP Server. presentation C. A Router is used to separate Broadcast-Domains (we could also call them Subnets . In the old days of hubs. The number of broadcast domains would decrease. What is the highest layer of the protocol stack that the network administrator is using for this operation? A. if 5 PCs are connected with separate cables to a switch. Each device that is connected to a Layer 1 device (repeater. How to count them? Broadcast Domain: No matter how many hosts or devices are connected together. Broadcast Domain: Broadcasting sends a message to everyone on the local network (subnet). The number of broadcast domains would increase. An example for Broadcasting would be DHCP Request from a Client PC. since we mostly use switches to connect computers to the network. Only one device in the collision domain may transmit at any one time. Also. A collision domain is sometimes referred to as an Ethernet segment. Since switches and bridges allow for broadcast traffic to go unswitched. So.

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

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

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

C. B. F. 14.1. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached. 13. Router C will send a Source Quench message type. B.D Explanation: Host 1 is trying to communicate with Host 2. a modem converts analog signals from a router to a leased line.Host 1 is trying to communicate with Host 2. Router C will send a Router Selection message type. Exhibit D E. A CSU/DSU converts digital signals from a router to a phone line. A CSU/DSU converts analog signals from a router to a leased line.168. a modem converts analog signals from a router to a phone line. Exhibit B C.  B.The safer . Which of the following are true? (Choose two. D. E. Answer: A. This information (IP and MAC address of the default gateway) is saved in its ARP cache for later use. and Router B that Host 2 cannot be reached. Host A sends a broadcast frame asking the MAC address of 192. Router A. The e0 interface on Router C is down. Router C will use ICMP to inform Router B that Host 2 cannot be reached.6. Exhibit C D. a modem converts digital signals from a router to a leased line. 12 / 262 .168. easier way to help you pass any IT exams. Router C will send a Destination Unreachable message type.What is the difference between a CSU/DSU and a modem? A. The e0 interface on Router C is down. Exhibit F Answer: A Explanation: Host A knows host B is in another network so it will send the pings to its default gateway 192.6. A CSU/DSU converts analog signals from a router to a phone line. C. Router C will send ICMP packets to inform Host 1 that Host 2 cannot be reached. Router C will use ICMP to inform Host 1.) A. Exhibit E F.1.

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

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

router to router. easier way to help you pass any IT exams. hub to server… and we use crossover cable to connect switch to switch. Host. hub to host. 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.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 . switch to host. Server Group 2: Hub. switch to hub. (Not all options are used.DRAG DROP.  19. host to host…) 20.The safer .) Answer: Explanation: To remember which type of cable you should use. Drag the cable type on the left to the purpose for which it is best suited on the right. we should remember: Group 1: Router. 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.

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

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

C.128x. B. If Subnet Mask is 255.0 the 2 specified hosts fall in different subnets so they need a Layer 3 device to communicate.255.255.255.0 .128.255.255.0. With a network wide mask of 255.127 & x.Refer to the exhibit.x.The safer . Answer: B.x.x.) A.x.128.  23.0.E Explanation: If Subnet Mask is 255. each interface does not require an IP address.0. If Subnet Mask is 255. 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. D. With a network wide mask of 255.255.255.x. With a network wide mask of 255. must be a Layer 2 device for the PCs to communicate with each other. easier way to help you pass any IT exams.255.254. Which three statements correctly describe Network Device A? (Choose three.x.255.255. With a network wide mask of 255.x. E.128 the hosts vary from x.D. each interface does not require an IP address.x.0 the 2 specified hosts are in same subnet so are in network address and 18 / 262 .255. each interface does require an IP address on a unique IP subnet.255.254.255.255.x. must be a Layer 3 device for the PCs to communicate with each other.255. With a network wide mask of 255.

A CSU/DSU is used between two digital lines -For more explanation of answer D. 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 router is commonly considered a DCE device. 24. A CSU/DSU terminates an analog local loop.  can be accommodated in same Layer 2 domain and can communicate with each other directly using the Layer 2 address. E. The network’s DCE device (includes CSU/DSU) provides clocking to the DTE-connected interface (the router’s serial interface). 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. A router is commonly considered a DTE device.) A. A CSU/DSU terminates a digital local loop.D.The safer . Therefore a modem terminates an analog local loop is correct.E Explanation: The idea behind a WAN is to be able to connect two DTE networks together through a DCE network. F. 19 / 262 . easier way to help you pass any IT exams.Which of the following describes the roles of devices in a WAN? (Choose three. C. A modem terminates an analog local loop. Answer: A. B. D. A modem terminates a digital local loop.

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

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

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

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

C Explanation: A VLAN is a switched network that is logically segmented on an organizational basis. To accomplish this. 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.1Q. an approach to wireless LAN communication D. the process for root bridge selection E. VLANs allow to group users by function. a trunk link is created to accomplish this VLAN identification. With 802.The safer . Answer: B. and servers. Security: VLANs also improve security by isolating groups. 33. one switch must send frames to another switch and indicate which VLAN a particular frame belongs to. On Cisco switches. contains collisions Answer: A.1Q are different methods of putting a VLAN identifier in a Layer 2 frame. possible on the same physical segment. dedicated bandwidth C. The IEEE 802. a method of VLAN trunking C. added security B.1Q protocol interconnects VLANs between multiple switches. project teams. routers. They simplify switch administration. and no users outside that VLAN can communicate with them.C.Which two benefits are provided by creating VLANs? (Choose two. not by location or geography ->. by functions. It is also a big advantage of VLAN ->.In a switched environment. 32. VLAN increases the size of broadcast domains but does not decrease the number of collision domains ->. Cisco switches support IEEE 24 / 262 . VLANs help minimize the incorrect configuration of VLANs so it enhances the security of the network ->.1Q standard describe? A. VLANs are useful but they are more complex and need more administration ->. provides segmentation D. By containing traffic originating on a particular LAN only to other LANs in the same VLAN. High-security users can be grouped into a VLAN. VLAN pruning Answer: B Explanation: A broadcast domain must sometimes exist on more than one switch in the network. 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.  F. easier way to help you pass any IT exams. or applications rather than on a physical or geographical basis. ISL and IEEE 802. what does the IEEE 802. the operation of VTP B.E Explanation: When using VLAN the number and size of collision domains remain the same ->. a network administrator can define a VLAN topology to span multiple physical devices. VLANs increase the number of broadcast domains while decreasing the size of the broadcast domains which increase the utilization of the links. allows switches to route traffic between subinterfaces E. switched virtual networks avoid wasting bandwidth.) A.

802. While STP can take 30 to 50 seconds to transit from a blocking state to a forwarding state.D Explanation: One big disadvantage of STP is the low convergence which is very important in switched network. a network administrator can manually disable a port. 802.Which three statements about RSTP are true? (Choose three.The safer . To overcome this problem. C. 802.Refer to the exhibit.1w introduced an evolution of the Spanning Tree Protocol: Rapid Spanning Tree Protocol (RSTP). The backup port applies only when a single switch has two links to the same segment (collision domain).1Q) to be used.) A.1Q for FastEthernet and Gigabit Ethernet interfaces. To have two links to the same collision domain. E. discarding. RSTP provides a faster transition to the forwarding state on point-to-point links than STP does. *Backup port – A backup/redundant path to a segment where another bridge port already connects. or forwarding. RSTP significantly reduces topology reconverging time after a link failure. RSTP port states are blocking. The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. the switch must be attached to a hub. in 2001. *Disabled port – Not strictly part of STP. 36.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame as it leaves a trunk port. 25 / 262 . learning. An 802.3ad B. which significantly reduces the convergence time after a topology change occurs in the network.  802. RSTP is typically able to respond less than 10 seconds of a physical link failure. 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. D. RSTP expands the STP port roles by adding the alternate and backup roles.Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet? A.B. 34.1w C. easier way to help you pass any IT exams. F. RSTP uses the same timer-based process as STP on point-to-point links.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. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge. B.1D D. RSTP also uses the STP proposal-agreement sequence. 802. This path is different than using the root port. the IEEE with document 802. Answer: A. 35. RSTP works by adding an alternative port and a backup port compared to STP.

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

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

easier way to help you pass any IT exams. root D. SwitchA. Fa0/2. The higher the bandwidth on a link. 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. 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. The receiving switch will add its local port cost value to the cost in the BPDU. SwitchB. root Answer: A.  Each of these four switches has been configured with a hostname. 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. Fa0/2. Now let’s have a look at the topology again 28 / 262 . Fa0/1. designated B. as well as being configured to run RSTP. Gi0/2.The safer . Gi0/1. designated E. In general. No other configuration changes have been made.) A. SwitchA. 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. the lower the value of its cost. Because SwitchC is the root bridge so the 2 ports nearest SwitchC on SwitchA (Fa0/1) and SwitchD (Gi0/2) will be root ports. 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 C. SwitchC. root F. SwitchD. Gi0/2. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three. SwitchB. “cost” is calculated based on bandwidth of the link.B.F Explanation: The question says “no other configuration changes have been made” so we can understand these switches have the same bridge priority.

SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8. 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 ->. Below summaries all the port roles of these switches: 29 / 262 . Now our last task is to identify the port roles of the ports between SwitchA & SwitchB. Switch D adds 4 (the cost value of 1Gbps link) and advertises this value (4) to SwitchB. 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.  SwitchC advertises its cost to the root bridge with a value of 0.The safer . easier way to help you pass any IT exams.

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

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

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

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

easier way to help you pass any IT exams. What is the correct configuration for SW2? A. 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 .  A network administrator is configuring an EtherChannel between SW1 and SW2. 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. 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 .The safer .(Topic 2) B. The SW1 configuration is shown.

we can know that the data link protocol used in this network is the Frame Relay protocol. it was using PagP.Refer to the exhibit. Frame Relay D. 35 / 262 . PagP modes: auto | Desirable LACP modes: active | pasive 45. ATM B.Refer to the exhibit. 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. PPP Answer: C Explanation: This question is to examine the show int command. so.  switchport mode trunk D. Which WAN protocol is being used? A. HDLC C. “LMI enq sent…” 46.The safer . easier way to help you pass any IT exams.

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

The “switchport mode trunk” command is all that is needed. the connection between the switches must be a trunk.The safer . source MAC address B. source IP address C. source switch port D. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1 D. 48. B.What does a Layer 2 switch use to decide where to forward a received frame? A. the individual VLANs should not be listed over that trunk interface. 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. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk C. easier way to help you pass any IT exams. destination IP address 37 / 262 .  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 ports only need to be connected by a crossover cable.

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

  E. When layer 2 is converged.E Explanation: Example output from these two commands: SW3#show interface trunk Port Mode Encapsulation Status Native vlan Fa0/19 auto n-802.The safer . On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none 51. easier way to help you pass any IT exams. root bridge is elected and all port roles (Root. 52. redundant C. converged B.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.1q trunking 1 Fa0/22 auto n-802.1q trunking 1 Fa0/21 auto n-802.Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state? A. 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. show interface switchport Answer: A.1q trunking 1 Fa0/20 auto n-802. provisioned D.Refer to Exhibit: 39 / 262 . Designated and Non-Designated) in all switches are selected.

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.The safer .255. two C.0 SwitchB(config-if)# no shutdown 40 / 262 .168. A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA. one B.  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).8. easier way to help you pass any IT exams. 53.252 255.Refer to the exhibit. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192. Which set of commands is required to accomplish this task? A.255. For your information. six D.

rapid spanning tree protocol (IEEE802.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.255.8. transparent B. not revolution.252 255. Answer: B.168. learning status. 54.255.255.0 SwitchB(config-if)# no shutdown Answer: C Explanation: To remote access to SwitchB. D. RSTP is a proprietary implementation of IEEE 802.8.E Explanation: When network topology changes. In the exhibit.255.1D STP.) A.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192. RSTP defines new port roles. auto C.252 255.8.168.255. RSTP cannot operate with PVST+.  B.252 255. RSTP not only defines the role of other ports: alternative port and backup port.) A.255.What are the possible trunking modes for a switch port? (Choose three. forwarding status.168.0 SwitchB(config-if)# no shutdown D. but also defines status of 3 ports: discarding status. we often use VLAN 1 as the management VLAN (but in fact it is not secure). E. Traditionally. It retains most of the parameters. easier way to help you pass any IT exams.The safer .168. and makes no changes.0 SwitchB(config-if)# ip default-gateway 192.8. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.254 255.8.0 SwitchB(config-if)# no shutdown E.1D STP.255. B. not to forward traffic sent by devices connected to the switch. 55. referred to as RSTP) will speed up significantly the speed to re-calculate spanning tree. SwitchB(config)# ip default-network 192.8.1D standard evolution.8.168. This default gateway is used to forward traffic originating from the switch only. SwitchB(config)# ip default-gateway 192. SwitchB(config)# ip route 192. it must have a management IP address on a VLAN on that switch.254 255.255.8. RSTP is compatible with the original IEEE 802.255.1W.252 255.255. For intersubnetwork communication to occur.Which two of these statements regarding RSTP are correct? (Choose two. on 41 / 262 . RSTP defines no new port states.0 SwitchB(config-if)# no shutdown C. RSTP is 802. C.168.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.255.255. we can recognize that the Management Workstation is in a different subnet from the SwitchB. you must configure at least one default gateway.168.

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

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

596d. Broadcast addresses use an incorrect format for the switching table. All of the interface roles of the root bridge are designated.Refer to the exhibit. because not all of the interface roles are designated. From the output we learn this switch is running Rapid STP.1580.596d. easier way to help you pass any IT exams. C. VLAN 20 is running the Per VLAN Spanning Tree Protocol. E. Fa0/11 is the root port so we can confirm this switch is not the root bridge ->. 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 ->. and since a broadcast is never the source. 59. Answer: C Explanation: Switches dynamically learn MAC addresses based on the source MAC addresses that it sees. it will never learn the broadcast address.  (BPDUs) between switches. not PVST ->. A broadcast address will never be the source address of a frame.The safer . 44 / 262 . not of the root bridge. D. SwitchA has one Root port and 1 Alternative port so it is not the root bridge. D. The MAC address of the root bridge is 0017. B. SwitchA is not the root bridge.596d. A broadcast frame is never forwarded by a switch.1580 is the MAC address of this switch. B. Which statement is true? A.2a00 ->. The MAC address of the root bridge is 0017. Answer: D Explanation: Only non-root bridge can have root port. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20. 60. Broadcasts only use network layer addressing. 0017. Broadcast frames are never sent to switches.Why will a switch never learn a broadcast address? A. C.

Host B and the switch need to be in the same subnet. What is the issue? A. 802.  61. The administrator's attempt to telnet to the switch from host B fails. D. 63. the industry standard 802. The switch interface connected to the router is down. C. Answer: D Explanation: Ping was successful form host B to other hosts because of intervlan routing configured on router. discarding 45 / 262 . However.D Explanation: Cisco switches can use two different encapsulation types for trunks.) A. Since VLAN1 interface is already configure on switch Host A was able to telnet switch.Which two states are the port states when RSTP has converged? (Choose two. IGP D.) A. The switch needs an appropriate default gateway assigned.1q or the Cisco proprietary ISL. host A is unavailable. easier way to help you pass any IT exams. The network administrator normally establishes a Telnet session with the switch from host A. Generally. The switch interfaces need the appropriate IP addresses assigned. 62.3u Answer: B.The safer .Which two link protocols are used to carry multiple VLANs over a single link? (Choose two. ISL E. but pings to the other two hosts are successful.1q C. Host B needs to be assigned an IP address in VLAN 1. B.1q since it is standards based and will interoperate with other vendors. VTP B. most network engineers prefer to use 802. 802. 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.Refer to the exhibit. E.

  B. and listening states are merged into a unique 802. on D. listening C. blocking F.D Explanation: There are only three port states left in RSTP that correspond to the three possible operational states. forwarding 46 / 262 . disabled Answer: A.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cf a. blocking. auto C.1D) Port State RSTP (802.1D disabled.The safer .) A. STP (802.1w) 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.cisco.shtml#states 64. The 802.Which three are valid modes for a switch port used as a VLAN trunk? (Choose three. easier way to help you pass any IT exams. desirable E. transparent B. forwarding E.1w discarding state. learning D.

B. F. The port becomes a trunk port if the adjacent port is set to on. VLANs allow access to network services based on department. This is the default mode for Fast and Gigabit Ethernet ports. 66. VLANs provide a low-latency internetworking alternative to routed networks. 32768: 11-22-33-44-55-66 B. as if looking at a real number anything less than 32768. VLANs can greatly simplify adding.) A.Bridge priority + MAC (32768. not physical location. C. VLANs provide a method of conserving IP addresses in large networks. ✑ Auto: This mode enables the port to convert the link into a trunk link. for example.will become the target of being the root.0200.What are three advantages of VLANs? (Choose three. Each bridge has a configurable priority number and a MAC Address. or changing hosts on the network. VLANs utilize packet filtering to enhance network security. If two bridges have equal priority then the MAC addresses are compared.1111) and B (MAC=0200. The port becomes a trunk port even if the adjacent port does not agree to the change. easier way to help you pass any IT exams.0000. ✑ Nonegotiate: This mode puts the port into permanent trunk mode.F Explanation: VLAN technology is often used in practice.. Packet filtering is a function of firewall instead of VLAN. or auto mode. To compare two bridge IDs.2222) both have a 47 / 262 .C. VLANs establish broadcast domains in switched networks. 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. This makes network more flexible and scalable. ✑ Desirable: This mode causes the port to actively attempt to convert the link into a trunk link. because it can better control layer2 broadcast to improve network security. D. the priority is compared first. The adjacent port must be configured manually as a trunk port to establish a trunk link.1111).The safer . 32768: 22-33-44-55-66-77 C. The port becomes a non-trunk port even if the adjacent port does not agree to the change.Which switch would STP choose to become the root bridge in the selection process? A.E. Answer: A. if switches A (MAC=0200.0000. 65. the bridge ID contains both numbers combined together . The Bridge priority default is 32768 and can only be configured in multiples of 4096(Spanning tree uses the 12 bits extended system ID). desirable.. ✑ OFF: This mode puts the port into permanent non-trunk mode and negotiates to convert the link into a non-trunk link.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.0000. 32769: 11-22-33-44-55-65 D. moving. The port becomes a trunk port if the adjacent port is set to on or desirable mode. E.  Answer: B. but does not allow the port to generate Dynamic Trunking Protocol (DTP) frames.

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

E. FastEthernet0/1 is connected to a host with multiple network interface cards. 802. C.1Q trunking are correct? (Choose three.1Q native VLAN frames are untagged by default.1Q trunks require full-duplex. 49 / 262 . Answer: B.E Explanation: Carefully observe the information given after command show. and these MAC are in different VLAN. B. 802. 802. F0/5 corresponds to two MAC addresses in the same VLAN. B. Interface FastEthernet0/2 has been disabled.) A.The safer .1Q trunking ports can also be secure ports. 802. From the information given by show cdp neighbors we find that there is no Fa0/5 in CDP neighbor. there are multiple MAC addresses from different VLANs attached to the FastEthernet 0/1 interface.  Which two statements are true of the interfaces on Switch1? (Choose two. Multiple devices are connected directly to FastEthernet0/1. FastEthernet0/1 is configured as a trunk link. C.Which three of these statements regarding 802. D. Only trunks are able to pass information from devices in multiple VLANs. Fa0/1 is connected to Switch2. D. However. From this we know that Fa0/1 is the trunk interface. A hub is connected directly to FastEthernet0/5.) A.1Q trunks can use 10 Mb/s Ethernet interfaces. Based on the output shown. Thus we know that Fa0/5 is connected to a Hub. easier way to help you pass any IT exams. 69. point-to-point connectivity. FastEthernet0/5 has statically assigned MAC addresses. F. seven MAC addresses correspond to Fa0/1.

it could lead to layer 2 loops. Receiver switches will transmit all unmarked packets to Native VLAN.1Q trunk defined Native VLAN in order to forward unmarked frame. 70.1Q trunk ports on same trunk link is properly configured. If the Native VLAN in 802.E Explanation: By default. What causes this behavior? A. Switches can forward Layer 2 frame from Native VLAN on unmarked trunks port.  E. easier way to help you pass any IT exams.The safer . Note for the 802.1Q trunk ports between two devices.1Q trunks should have native VLANs that are the same at both ends.1Q trunk link transmits VLAN information through Ethernet.C. 802. VLANs that do not correspond to a unique IP subnet Answer: C 50 / 262 . the same Native VLAN configuration is required on both sides of the link. 802. The 802. allowing only VLAN 2 on the destination C. Answer: A. native VLAN mismatches D.Refer to the exhibit. A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2. Native VLAN is the default VLAN configuration of port. trunk mode mismatches B.

Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN. D.1Q trunk. to provide optimized bandwidth usage. When a packet is received from an 802. PVST+ reduces the CPU cycles for all the switches in the network. C.What is one benefit of PVST+? A. which switch is elected as the root bridge for the spanning-tree instance of VLAN 1? A. In this case. so incoming frames with unknown destinations are only transmitted to ports that reside in the same VLAN as the incoming frame. PVST+ automatically selects the root bridge location.The safer . 73. Answer: C Explanation: The PVST+ provides Layer 2 load-balancing for the VLAN on which it runs. easier way to help you pass any IT exams. the switch with the lowest MAC address C. 71. the switch with the lowest IP address Answer: B Explanation: Each switch in your network will have a Bridge ID Priority value. 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.Three switches are connected to one another via trunk ports. D. B. The lowest BID will win the election process. Answer: B Explanation: Each VLAN resides in its own broadcast domain. the VLAN ID can be determined from the source MAC address and the MAC address table. For example.2 _55_se/configuration/guide/swstp.cisco. C. This root switch propagates the spanning-tree information associated with that VLAN to all other switches in the network. Reference: http://www. Assuming the default switch configuration. This BID is a combination of a default priority value and the switch's MAC address.html 72. Ports between switches should be configured in access mode so that VLANs can span across the ports. with the priority value listed first.  Explanation: Untagged frames are encapsulated with the native VLAN. the switch with the highest IP address D.Which statement about VLAN operation on Cisco Catalyst switches is true? A. the switch with the highest MAC address B. PVST+ supports Layer 3 load balancing without loops. B. more commonly referred to as a BID. PVST+ allows the root switch location to be optimized per VLAN. Because each switch has the same information about the network.768 and a MAC address of 51 / 262 . Each instance of PVST+ on a VLAN has a single root switch. Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN. the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2. this process ensures that the network topology is maintained and optimized per VLAN. if a Cisco switch has the default priority value of 32.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.

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

What will happen in this scenario? A. but on CAT2 the native VLAN is not specified. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames. D. On CAT1. 802. C.Refer to the exhibit. A native VLAN mismatch error message will appear. What happens if you set the switchport access vlan 3 command in interface configuration mode? A. C. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan. 57 / 262 . B. The command is accepted and you must configure the VLAN manually.1Q trunk is configured between the two switches. D. The command is rejected. An 802.  83. 84. The port turns amber.dat. B.VLAN 3 is not yet configured on your switch. The command is accepted and the respective VLAN is added to vlan.The safer .Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. Answer: C Explanation: A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802. 85. 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 3.1Q giants frames could saturate the link. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames. VLAN 10 is chosen as native.1Q link. easier way to help you pass any IT exams.

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

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

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).10. C. easier way to help you pass any IT exams.10.168. how will packets from a host within the 192. Based on the exhibited routing table.Refer to the exhibit.168. The router will forward packets from R3 to R2 to R1 AND from R3 to R1. show users D. show cdp neigbors B. B. The router will forward packets from R3 to R1 to R2. show session C. The router will forward packets from R3 to R1. 90.  89. The router will forward packets from R3 to R2 to R1.Which command shows your active Telnet connections? A. Answer: C 60 / 262 .192/26 LAN be forwarded to 192.1? A. D.The safer . meaning connections from your router so the answer should be A. The question asks about “your active Telnet connections”.

91. Answer: B Explanation: Notice the line. you have to assume that no other VLAN interface has been configured with an IP Address. Remote access management of this switch will not be possible without configuration change.168. The switch will need a different IOS code in order to support VLANs and STP.168.0/30 is learned via 2 equal-cost paths (192. 92. show boot C.10. which says “Interface VLAN1. More VLANs will need to be created for this switch.The safer .  Explanation: From the routing table we learn that network 192. easier way to help you pass any IT exams. changed state to administratively down”. This shows that VLAN1 is shut down.10. C. show reload B.Refer to the exhibit. it will be blocked by STP. Since VLAN1 is the only interface shown in the output.9 &192. D.Which command reveals the last method used to powercycle a router? A. As FastEthernet0/12 will be the last to come up. B. Hence remote management of this switch is not possible unless VLAN1 is brought back up. show running-config D. show version Answer: D Explanation: The “show version” command can be used to show the last method to powercycle (reset) a router.168. 61 / 262 .10.5) -> 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.

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

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

0.0. 1 subnets D 10.2.Which type of EIGRP route entry describes a feasible successor? A.4.0.0/30 is subnetted. 1 subnets D 10.4.0.2. 6w0d.4.0. 1 subnets D 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.4. 97.0 [90/20514560] via 10. 10. The administrator would like to reduce the size of the routing table on the Central router. 6w0d. a primary route. Serial0/1 E. 10. Serial0/1 C.2. stored in the topology table Answer: C Explanation: 64 / 262 .2.0. 10. stored in the routing table C. Serial0/1 Answer: D Explanation: The 10. stored in the routing table B. a primary route.0. a backup route.4.0.0 [90/20514560] via 10.0. 1 subnets D 10.0. 1 subnets D 10.4.1. 1 subnets D 10.0/24 and 10.  The Lakeside Company has the internetwork in the exhibit.0. 6w0d. easier way to help you pass any IT exams.0 [90/20514560] via 10.0. 6w0d.2.0/24. 10. Serial0/1 B.0.0 [90/20514560] via 10.4.0/22 is subnetted.0.0.2.2.2.4.0/24 networks only. Serial0/1 F.0/30 is subnetted. 6w0d.2.0/28 is subnetted.2.2.4.0.4 [90/20514560] via 10.0.0.0.0.0. 10. 6w0d.0/22 route includes 10. 10.2.0/24.2. a backup route.2.4.0.0.0.0/28 is subnetted. 10. 10.3. Serial0/1 D. stored in the topology table D.The safer .0/22 is subnetted.2.0 [90/20514560] via 10.2.

Answer: A. which is known as the Successor.11110. a command that is implemented in all foreign and domestic IOS versions C.0.0.11310. 65 / 262 . a command that is set once and affects the entire router B. 99.D Explanation: r120#show ip ospf data OSPF Router with ID (10.What is a global command? A.0.0.1201520x800002400x0046CB1 We can see OSPF Router ID will be used as source of Type 1 LSA. who are the other routers in our area? Router Link States (Area 1) Link IDADV RouterAgeSeq#ChecksumLink count 10. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination. By default. a command that is universal in application and supports all protocols D.0. 98. B. An example of a global command is one used for the hostname of the router. C. easier way to help you pass any IT exams.120) (Process ID 1) Next. a command that can be entered in any configuration mode Answer: A Explanation: When you enter global configuration mode and enter a command.Which two statements about the OSPF Router ID are true? (Choose two.0. it is applied to the running configuration file that is currently running in ram.0. The router automatically chooses the IP address of a loopback as the OSPF Router ID.0.0.0. regardless of the version or deployment status E.11210.Refer to the exhibit. the lowest IP address on the router becomes the OSPF Router ID. 100. It identifies the source of a Type 1 LSA.) A.0.1131480x8000022C0x0043993 10. D.11212460x80000234 0x009CAC1 10.  EIGRP uses the Neighbor Table to list adjacent routers. The Feasible Successor is a backup route to a destination which is kept in the Topology Table.1116000x8000023A 0x0092B31 10. It should be the same on all routers in an OSPF routing instance.0. E.0.0. a command that is available in every release of IOS.12010. Also the router will chose the highest loopback interface as its OSPF router ID (if available).The safer .0. It is created using the MAC Address of the loopback interface. The configuration of a global command affects the entire router.0.0.0.

0.255 area 0 C. 66 / 262 .3. no routing protocols need to be configured.0 0.0 D. Since the C-router already knows how to get to all three networks.19. all traffic destined to a different VLA will be sent to the C-router.0.0. No further routing configuration is required. What is true about this configuration? A.0 B.19.19.  C-router is to be used as a "router-on-a-stick" to route between the VLANs. The hosts in the VLANs have been configured with the appropriate default gateway. easier way to help you pass any IT exams. All the interfaces have been properly configured and IP routing is operational.DRAG DROP. The C-router will have knowledge of all three networks since they will appear as directly connected in the routing table. These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172.0. 101. Answer: D Explanation: Since all the same router (C-router) is the default gateway for all three VLANs. These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172. Drag each definition on the left to the matching term on the right. These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172.The safer .

The network has not fully converged. IP routing is not enabled.  Answer: 102.22. The network administrator connected to router Coffee via the console port. easier way to help you pass any IT exams. and was able to ping the server.17.The safer . issued the show ip route command.5.0 network cannot reach the server located on the 172.0 network. 67 / 262 . what is the cause of the failure? A.Users on the 172. Based on the output of the show ip route command and the topology shown in the graphic. B.31.

0.0.0.2 to reach server located on 172. The neighbor relationship table is not correctly updated.The safer .0.0.  C.Refer to the exhibit. You should generally only use default routing on stub networks—those with only one exit path out of the network. The routing table on Coffee has not updated. The FastEthernet interface on Coffee is disabled. ip route 0.1 D. Answer: C Explanation: The default route or the static route was configured with incorrect next-hop ip address 172.16. easier way to help you pass any IT exams.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. ip route 0.255 172.0.0.255.0. A static route will be established on the Manchester router to direct traffic toward the Internet over the most direct path available.0 0.0.100.0 128.0 255.0 0. A static route is configured incorrectly.0. E.0.22.16.252 128. According to exhibit.2.0. IP route 0.0.0.100.2 B.255.255.255.31.1 C.0 172.0 0.22.255. ip route 0.16.0 255.107. ip route 0.255. 68 / 262 . The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s.18.0.16.0 172.2 103.1.1 E. D.100. ip route 0.0.0 172.0.22.100.2 F. Syntax for default route is: ip route <Remote_Network> <Netmask> <Next_Hop_Address>.0.5. The correct IP address will be 172.0 255. ip route 0. F.0.1.0. all traffic towards Internet that originates from workstations should forward to Router R1.0.107.0 172.19.0 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.18.0.0 network.

although the hosts attached to Switch1 can ping the interface Fa0/0 of the router. Switch1(config)# ip default-gateway 192.The network administrator cannot connect to Switch1 over a Telnet session.24.24. Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192.  104.0 C.3 255. which of the following commands should be issued on Switch1 to correct this problem? A. Given the information in the graphic and assuming that the router and Switch2 are configured properly. easier way to help you pass any IT exams. Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full 69 / 262 .168.168.The safer .255.1 D. Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login B.255.

255. Reference: http://www. a router goes through several state changes before it becomes fully adjacent with its neighbor.When a router undergoes the exchange protocol within OSPF.) A. router ospf area 0 network 10.cisco. 2-Way. are good. in what order does it pass through each state? A.1. Exstart.255 C. easier way to help you pass any IT exams.   106. Attempt.0 0.html 107.1. loading state > exchange state > full state > exstart state Answer: B Explanation: When OSPF adjacency is formed.0. and Full. for the switch itself to reach networks outside the local one. However. Exchange.The safer .1. to decrease latency by increasing bandwidth B.1. reduced routing overhead.0.0 255. 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.  Switch1(config-if)# speed 100 E. to reduce the complexity of router configuration F.255. 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. router ospf network 10. to confine network instability to single areas of the network E. duplex. to speed up convergence D. Init.C.1. exstart state > full state > loading state > exchange state D. we know that connectivity.com/c/en/us/support/docs/ip/open-shortest-path-firstospf/13685-13. exstart state > exchange state > loading state > full state C.1. to lower costs by replacing routers with distribution layer switches Answer: B. Loading.0 /24 to area 0? A. etc. the ip default-gateway command must be used.D Explanation: OSPF implements a two-tier hierarchical routing model that uses a core or backbone tier known as area zero (0). Attached to that backbone via area border routers (ABRs) are a number of secondary tier areas. to reduce routing overhead C.What command sequence will configure a router to run OSPF and add network 10. exstart state > loading state > exchange state > full state B.0 area 0 B.1. The states are (in order) Down. Those states are defined in the OSPF RFC 2328. 105.Why do large OSPF networks use a hierarchical design? (Choose three. router ospf 1 70 / 262 . Speed. section 10.

0 0.1. Step 2 Configure terminal Example: Device# configure terminal Enters global configuration mode. ✑Enter your password if prompted.The safer .0. configure terminal 3. Step 4 Network ip-address wildcard-mask area area-id Example: Device(config-router)# network 192.0.0.  network 10.0 0.255. Step 3 router ospf process-id Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode.0. router ospf 1 network 10.1.255 area 0 E.0.3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface. end DETAILED STEPS Command or Action Purpose Step 1 Enable Example: Device> enable Enables privileged EXEC mode.168.1.1.0 area 0 F.0. Step 5 End Example: Device(config-router)# end 71 / 262 . router ospf area 0 network 10.255.1.1. enable 2.0 0.0 255.16 0.255 Answer: C Explanation: ✑ Enabling OSPF SUMMARY STEPS 1.0.1.0.129.255 area 0 D.1. easier way to help you pass any IT exams. network ip-address wildcard-mask area area-id 5. router ospf process-id 4. router ospf network 10.

a RIP update for network 192.10.A router receives information about network 192.  Exits router configuration mode and returns to privileged EXEC mode.168. meaning it will be preferred over all dynamic routing protocols.168.10. you need to increase the AD of the static route so that it is higher than the dynamic routing protocol. hosts on the same VLAN can communicate with each other. when a dynamic protocol is also being used? A.1 F.168. Directly connected routes have an AD of 1 so this will be the route chosen. from all the /24 routes it will choose the one with the lowest administrative distance.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/124t/iro-12-4t-book/iro-cfg. easier way to help you pass any IT exams.10.0. but they are unable to communicate with hosts on different VLANs. link bandwidth D. an OSPF update for network 192.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673 108. in this case the /24 routes will be chosen over the /16 routes. link delay E. a static route to network 192.10. 109. So. they can communicate with the help of Layer3 router. hop count B.10. a static route to network 192.cisco. First. a switch with a trunk link that is configured between the switches Answer: A Explanation: Different VLANs can't communicate with each other.254/24 B. link cost Answer: B Explanation: By default the administrative distance of a static route is 1.168. a directly connected interface with an address of 192.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network? A.0/16 E. Next.168. Reference: http://www.On a corporate network. a router with subinterfaces configured on the physical interface that is connected to the switch B. meaning the most specific route.0/24 D.The safer . a default route with a next hop address of 192. it will choose the route that has the longest match. a switch with an access link that is configured between the switches D. 72 / 262 . If you want to have the dynamic routing protocol used and have the static route be used only as a backup.168.10. 110.0/24 C. What is needed to allow communication between the VLANs? A.Which parameter would you tune to affect the selection of a static route as a backup. a router with an IP address on the physical interface connected to the switch C.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.168. administrative distance C. it will choose the best one based on a couple of things.

Which statements describe the routing protocol OSPF? (Choose three. D.168. It is simpler to configure than RIP v2. Answer: A.y 111. route summarization.168. you need to use VLAN trunking between the switches.  Hence.1. It is used to route between autonomous systems. OSPF has introduced new concepts such as authentication of routing updates. which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP.1 RouterA(config-subif)#encapsulation ? dot1Q IEEE 802.0. you need a router or a layer 3 switch.2.0. It increases routing overhead on the network.x.x. OSPF uses flooding to exchange link-state updates between routers. Routing has been configured on the local router with these commands: Local(config)# ip route 0.168. It allows extensive control of routing updates.y.0. F. The attached devices are unaware of any VLAN structure.255.3 Drag each destination IP address on the left to its correct next hop address on the right. 112. 73 / 262 . then make the sub-interface on the router to connect to the switch.0 192.E Explanation: The OSPF protocol is based on link-state technology.0.255. easier way to help you pass any IT exams.0 255.x y.0. establishing Trunking links to achieve communications of devices which belong to different VLANs. By default. Any change in routing information is flooded to all routers in the network. It confines network instability to one area of the network. Flooding and calculation of the Dijkstra algorithm on a router is limited to changes within an area.0 192. and so forth.0 192.1 Local(config)# ip route 10.255.1.) A. the switches tag each frame sent between switches so that the receiving switch knows to what VLAN the frame belongs. When using VLANs in networks that have multiple interconnected switches. it is needed to connect a router to a switch.0. Here is the example of configuring the router for inter-vlan communication RouterA(config)#int f0/0.3. C.C.The safer . End user devices connect to switch ports that provide simple connectivity to a single VLAN each.2 Local(config)# ip route 10. To change this and allow inter-VLAN communication. Variable Length Subnet Masks (VLSM).1Q Virtual LAN RouterA(config-subif)#encapsulation dot1Q or isl VLAN ID RouterA(config-subif)# ip address x.0 0. B. E.0.1. only hosts that are members of the same VLAN can communicate.DRAG DROP.y. With VLAN trunking. Areas are introduced to put a boundary on the explosion of link-state updates.0 255. It supports VLSM.

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

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

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. D.) A. It routes over links rather than over networks. 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. It supports up to 2 instances of OSPFv3 over a common link. the amount of available flash and RAM memory C. the version of the bootstrap software present on the router D. It requires the use of ARP.What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.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. Interfaces can have multiple IPv6 addresses ✑OSPFv3 uses multicast addresses FF02::5 (all OSPF routers). show version E. C. 115. We can check both with the “show version” command. easier way to help you pass any IT exams. show running-config Answer: B. It can support multiple IPv6 subnets on a single link.Before installing a new. upgraded version of the IOS. 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. Answer: B.  114. FF02::6 (all OSPF DRs) 76 / 262 . and which command should be used to gather this information? (Choose two.) A. B.

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

Reference: www. It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet. B. Answer: D 78 / 262 .168. The path of the packets will be R3 to R1 to R2. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. It configures the virtual terminal lines with the password 030752180500. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2. easier way to help you pass any IT exams.Refer to the exhibit. Answer: D Explanation: Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. It allows seven failed login attempts before the VTY lines are temporarily shutdown.com/warp/public/707/ssh. The path of the packets will be R3 to R1.10. B. C. Straight (non-SSH) Telnets are refused. The path of the packets will be R3 to R2 to R1.192/26 network to a host on the LAN attached to router R1? A. E.The safer . D. The company uses EIGRP as the routing protocol.shtml 118.  What is the effect of the configuration that is shown? A. D. What path will packets take from a host on the 192.cisco. It configures SSH globally for all logins. add the “transport input ssh” command under the lines to limit the router to SSH connections only. C. It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports. If you want to prevent non-SSH connections.

10.10.Refer to the graphic.168.168. R1 and R2 are the DR and BDR.The safer .Refer to the exhibit.F Explanation: This question is to examine the conditions for OSPF to create neighborhood. 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 192.64 will be routed from R3 -> R1 -> LAN on R1.64/26 subnet.8/30 network (the network between R1 & R3) -> packets destined for 192. What are possible reasons for this problem? (Choose two.168.) A. E. easier way to help you pass any IT exams. 120. Hello and failure time interval timer. B. which is an IP address in 192. R1 and R3 are configured in different areas. 119. EIGRP is also configured on these routers with a lower administrative distance.168. R1 is unable to establish an OSPF neighbor relationship with R3.10. D. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. OSPF Password (Optional).10. The hello and dead interval timers are not set to the same values on R1 and R3. So as to make the two routers become neighbors.9. Answer: D. so OSPF will not establish neighbor adjacency with R3. All of the routers need to be configured for backbone Area 1. C. each router must be matched with the following items: The area ID and its types. 79 / 262 . F.

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

bin (Not enough space on device) 122. identify the fault on the Brevard router that is causing the lack of connectivity. one IP network or subnetwork for each subinterface C.E Explanation: This scenario is commonly called a router on a stick.167/ c1600-k8sy-mz. subinterface numbering that matches VLAN tags Answer: B. 123. well written article on this operation can be found here: http://www.com/RouterOnAStickCCNACertificationExamTutorial.2. one subinterface per VLAN F. subinterface encapsulation identifiers that match VLAN tags E.l23-16a.Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated. insufficient bandwidth C.1 And Interface Serial 1 of Router Brevard has 192.D. The Atlanta router is known to have the correct configuration.thebryantadvantage.168.168. A short.11.) A. incompatible IP address B. 81 / 262 . but they are unable to communicate. a management domain for each subinterface D. one physical interface for each subinterface B. easier way to help you pass any IT exams. A.htm 124. incorrect subnet mask D.Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three.Refer to the exhibit.168. These are from different network. Given the partial configurations. IPCP closed Answer: D Explanation: Because Interface Serial 0 of Atlanta Router has 192.2. incompatible encapsulation E. link reliability too low F.  %Error copying tftp://192.10.The safer .

1 B.2. The interfaces are functioning correctly.2 Answer: D Explanation: If a router-id is not configured manually in the OSPF routing process the router will automatically 82 / 262 . 125.1. C.  Assuming that the entire network topology is shown. Answer: C Explanation: The output shown shows normal operational status of the router’s interfaces.1 C. what value will OSPF use as its router ID? A.1.1.The safer .16. Two interfaces have problems. what is the operational status of the interfaces of R2 as indicated by the command output shown? A. B. If the router Cisco returns the given output and has not had its router ID set manually. 172.1.168.1 D.2. One interface has a problem. easier way to help you pass any IT exams. The operational status of the interfaces cannot be determined from the output shown. Serial0/0 is down because it has been disabled using the “shutdown” command. 1. 2.Refer to the exhibit. D. 192.

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

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”.The safer . one hour. and 72 hours are clearly shown: 84 / 262 . in which the total CPU usage on the router over a period of time: one minute.

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
85 / 262

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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the advertisements are sent to every neighbor. routing tables received from other link-state routers F. 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. The protocol will define a Hello packet format and a procedure for exchanging the packets and processing the information the packets contain. It attempts to boot from a TFTP server. What function does the router perform next? A. easier way to help you pass any IT exams.Refer to the exhibit. It is now ready to find and load an IOS image. Answer: A Explanation: Default (normal) Boot Sequence Power on Router .The safer . 139.A Cisco router is booting and has just completed the POST process.Router does POST .Bootstrap starts IOS load .What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two. a Hello protocol is used for this step. B. As the term flooding implies.check the startup-config file in NVRAM for boot-system commands . It inspects the configuration file in NVRAM for boot instructions. After the adjacencies are established. D. beacons received on point-to-point links E. each received LSA is copied and forwarded to every neighbor except the one that sent the LSA.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") . In turn. 90 / 262 .C Explanation: Neighbor discovery is the first step in getting a link state environment up and running. hello packets B. It checks the configuration register. Incorrect answer: command. the routers may begin sending out LSAs.) A. In keeping with the friendly neighbor terminology. C. line vty0 4 would enable all 5 vty connections. LSAs from other routers D. 141.  password cisco D. It loads the first image file in flash memory.load IOS from Flash. 140. SAP messages sent by other routers C. TTL packets from designated routers Answer: A.

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

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

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

The subnet mask is /28.255.0 255.16 255.16 255. 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.25.255.168.255.255.Which command encrypts all plaintext passwords? A.168. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24). Router(config)# service password-encryption D.168.252 C.255.255. 192. EIGRP learned 4 routes and we need to find out the summary of them: +192. 192. So.24 +192.168.255. Note: From the output above.25. The binary version of 16 is 10000.28 255. the best answer should be 192. It is meant to prevent someone from looking over your shoulder and seeing the password. easier way to help you pass any IT exams.168. 155.0 255. Router(config)# password-encryption C.255.252 E.255.168.168. 192. 98 / 262 .16 255.240.255. Therefore the subnet mask is /28 (=1111 1111.25.255.255.252 Answer: C Explanation: The binary version of 20 is 10100. Router# service password-encryption B.25.240 D.240.The safer .255.168. The binary version of 28 is 11100.240 B.28 255.255.16 +192.25.168.11110000) = 255.25. 192.25.240 F.1111 1111. The mask is 255.255.168. The binary version of 24 is 11000.20 +192.25.255.25.1111 1111.  Which address and mask combination represents a summary of the routes learned by EIGRP? A.25.28 -> The increment should bE.255.240. 192.25. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation.255. 192.168.

1 255.168.) A.1. What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two. Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192. This is configured in global configuration mode. Router(config)# router eigrp 100 Router(config-router)# network 192.0 Question No : 156 .10.168. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.255.0 Router(config-if)# no shut down B.Refer to the exhibit.255. 156.168. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F.255.0 Router(config)# interface fastethernet 0/0.0 D.168. easier way to help you pass any IT exams.255.20.255.1 255.  that is all.255.1 99 / 262 .1.0 C.168. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.(Topic 3) Router(config-router)# network 192.168.1 255.The safer . Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E.10.20.

5. what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.1. 10. 157. The network wildcard mask is configured improperly.1.0.0.E Explanation: The router will need to use subinterfaces. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. The AS is configured improperly.1. According to the routing table.5. 10.3 ->.2 C.4 Answer: C Explanation: The destination IP address 10. F.1. On the switch. 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. E. D. Therefore the next-hop should be 10.1.0. 10.1.5.  Answer: B. The network number is configured improperly. where each subinterface is assigned a VLAN and IP address for each VLAN.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.64/28. B.5. where will the router send a packet destined for 10.1.1. The network subnet mask is configured improperly. 10.5. 10.65 belongs to 10.Refer to the exhibit. The OSPF area is configured improperly.0.0 area 0 A.4.1.A network administrator is trying to add a new router into an established OSPF network.0 255. C.64/29 & 10.The safer .2.65? A.1. The process id is configured improperly. 158. Answer: C 100 / 262 .1. Given the information in the partial configuration shown below.2 B.3. easier way to help you pass any IT exams.3 D.3.

Configure a dynamic routing protocol on London to advertise all routes to Manchester.0.0. Configure a static route on London to direct all traffic destined for 172. C.0. network 255. will include all interfaces into area 0? A.0.0 area 0 C.1.255.2.” 159.What OSPF command.0.255. D.255 area 0 Reference: http://www.0 255. place it in area 0. What is the simplest way to accomplish this? A.asp?p=26919&seqNum=3 160.255. 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 0.0.255 area 0 dictates that you do not care (255.255. B.ciscopress.255. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester. In this specific example.0.0.0 0.255. E. the correct syntax would have been “network 10. network 0. Configure a static default route on London with a next hop of 10. The network command network 0.0. the mask used for the network statement is a wildcard mask similar to an access list.0.255.255.1.0 255.0. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router.0 255.0 0.1. when configured.0.0.255) what the IP address is.0 area 0 D.0. The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations.255. but if an IP address is enabled on any interface. network 0.16. 101 / 262 .com/articles/article.255.1.255 area 0.Refer to the exhibit. easier way to help you pass any IT exams.255 area 0 B.0.1.0.  Explanation: When configuring OSPF.0/22 to 10.The safer . Example 3-1 Configuring OSPF in a Single Area router ospf 1 network 0.255 0.0.

The minimum packet size that can traverse this interface is 1500 bytes. 162. 110 D. Administrative distance defines the reliability of a routing protocol.Refer to the exhibit.What is the default administrative distance of OSPF? A. 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 . 90 B. 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. The maximum packet size that can traverse this interface is 1500 bytes.  F. C. E. The maximum number of bytes that can traverse this interface per second is 1500. B. What is the meaning of the output MTU 1500 bytes? A.The safer . F. The maximum segment size that can traverse this interface is 1500 bytes. Configure Manchester to advertise a static default route to London. The maximum frame size that can traverse this interface is 1500 bytes. D. 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. Answer: E Explanation: The Maximum Transmission Unit (MTU) defines the maximum Layer 3 packet (in bytes) that can be transmitted out the interface. 161. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value. easier way to help you pass any IT exams. 100 C. The minimum segment size that can traverse this interface is 1500 bytes.

25 D. PPP also has built-in security mechanisms. PPP was designed to work with several network layer protocols. X.The safer . such as Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). 164. 103 / 262 .Refer to the exhibit. HDLC B.Topic 4.  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. PPP C. WAN Technologies Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms? A. including IP. Frame Relay Answer: B Explanation: PPP: Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits. easier way to help you pass any IT exams.

Refer to the exhibit.1 /24 C.2 /24 DLCI 99: 192. but it must be in a different one than the R2-R1 connection.168. Similarly.168.1 /24 DLCI 99: 192.168.2 /24 D.11.168. each connection needs to be in a separate subnet.168. DLCI 16: 192.3 /24 B.1 /24 DLCI 17: 192.168.10. which IP addresses would be assigned to the interfaces with point-to-point PVCs? A.168.168.168.11. DLCI 16: 192.1 /24 DLCI 17: 192.2 /24 DLCI 28: 192.11.12.3 /24 DLCI 28: 192.168.10. The R2-R1 connection (DLCI 16 to 99) would have each router within the same subnet.2 /24 DLCI 28: 192. DLCI 16: 192. DLCI 16: 192.The safer .10.168.10.168.1 /24 DLCI 99: 192.10. the R3-R1 connection would also be in the same subnet.1 /24 DLCI 99: 192.168.10.1 /24 DLCI 28: 192. 165.10.168.1 /24 DLCI 17: 192.  In the Frame Relay network.168.4 /24 Answer: C Explanation: With point to point PVC’s.13. easier way to help you pass any IT exams.10.10. What is the meaning of the term dynamic as displayed in the output of the show frame 104 / 262 .168.1 /24 DLCI 17: 192.10.10.

These include reduced cost. With Inverse ARP. particularly when multiple locations are involved. the device knows the Layer 3 IP address and needs to know the remote data link MAC address. Dynamic address mapping is enabled by default for all protocols enabled on a physical interface. dynamic address mapping takes place automatically. Encapsulate the physical interface with multipoint PPP. it updates its DLCI-to-Layer 3 address mapping table. D. Answer: E Explanation: Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism for dynamic DLCI to Layer 3 address maps. reduced latency Answer: A. Configure static Frame Relay map entries for each subinterface network. no static address mapping is required.16. with ARP. reduced cost B. Inverse ARP works much the same way Address Resolution Protocol (ARP) works on a LAN.D 105 / 262 . scalability F. If the Frame Relay environment supports LMI autosensing and Inverse ARP. F. E. Which of the following procedures are required to accomplish this task? (Choose three. E.3.3.  relay map command shown? A.) A. B. broadband incompatibility D. but needs to know the remote Layer 3 IP address. easier way to help you pass any IT exams. When using dynamic address mapping. and increased scalability as s single WAN link can be used to connect to all locations in a VPN.E Explanation: IPsec offer a number of advantages over point to point WAN links. Create the virtual interfaces with the interface command.16. increased security since all traffic is encrypted. B. C. the router knows the Layer 2 address which is the DLCI. The Serial0/0 interface acquired the IP address of 172. Remove the IP address from the physical interface. Configure each subinterface with its own IP address. The mapping between DLCI 100 and the end station IP address 172.) A. increased security E. 167.1 was learned through Inverse ARP.The safer . C. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud. Therefore. better throughput C. Disable split horizon to prevent routing loops between the subinterface networks. Answer: A. The Serial0/0 interface is passing traffic.D. However. 166.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. Once the requesting router receives an Inverse ARP response. The DLCI 100 was dynamically allocated by the router.1 from a DHCP server. D.C.It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit. where as a point to point link would need to be provisioned to each location. Inverse ARP requests a next-hop protocol address for each active PVC.

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

. active Serial0/0 (up): ip 10.0x6410). broadcast. SLIP D. CISCO.4. broadcast. 171. the authentication protocol. the status of the PVC that is configured on the router E.4.Which PPP subprotocol negotiates authentication options? A. respectively.The safer .4.4.1 dlci 401(0x191. compression of PPP header fields. the number of BECN packets that are received by the router B.. It is a data link layer protocol (layer 2 in the OSI model) 173.Which two statistics appear in show frame-relay map output? (Choose two.At which layer of the OSI model does PPP perform? A.  Note: Three LMI options are supported by Cisco routers are ansi. LCP E. DLCI Answer: D Explanation: The PPP Link Control Protocol (LCP) is documented in RFC 1661. and ITU Q933-A (Annex A) LMI types. and multilink options. ISDN C. dynamic. Layer 4 D. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. the number of FECN packets that are received by the router D.4. NCP B. HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type. Cisco. They represent the ANSI Annex D. active 172. callback. static. LPC negotiates link and PPP parameters to dynamically configure the data link layer of a PPP connection. active Serial0/0 (up): ip 10. Cisco.0x6410). Layer 2 B. and Q933a.) A.3 dlci 403(0x193. Layer 3 C. the IP address of the local router Answer: B. status defined. status defined. dynamic. 107 / 262 .0x6430). Common LCP options include the PPP MRU. easier way to help you pass any IT exams.4 dlci 401(0x191. 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. the value of the local DLCI C.4.D Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. status defined.

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

active 177. broadcast.0x6410). 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. This command should be executed from the global configuration mode. dynamic.  output value indicates to the local router that traffic sent to the corporate site is experiencing congestion? A. in FECN packets 147 E. easier way to help you pass any IT exams.. show frame relay end-to-end Answer: C Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. over-subscribed port. dynamic.The command frame-relay map ip 10.1 dlci 401(0x191. 178. DLCI = 100 B. with PAP as the fallback method.What command is used to verify the DLCI destination address in a Frame Relay static configuration? A.4. active Serial0/0 (up): ip 10. status defined. status defined. 102 is the remote DLCI that will receive the information.16. on a serial interface? A. B.4. overloaded resources. Router(config-if)# ppp authentication chap fallback ppp B. status defined. CISCO.8 102 broadcast was entered on the router.8 is the local router port used to forward data.4 dlci 401(0x191. Router(config-if)# ppp authentication chap pap C.16. 176. 109 / 262 . etc.. Router(config-if)# authentication ppp chap fallback ppp D. show frame-relay pvc B. 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.121.3 dlci 403(0x193. static. show frame-relay lmi C. show frame-relay map D.Which command is used to enable CHAP authentication. C.121. Which of the following statements is true concerning this command? A. 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. congestion being full buffers.4.4. active Serial0/0 (up): ip 10. in BECN packets 192 D.4.The safer . The IP address 10. last time PVC status changed 00:25:40 C.4.0x6430). broadcast.0x6410).

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

RSA B.1. defined by RFC 1293. defines the source IP address that is used in all broadcast packets on DCLI 202 C.What is the purpose of Inverse ARP? A. 184. 182.The safer . defines the DLCI that is used for all packets that are sent to the 192. to provide secure end-to-end communications? A. Frame Relay is strictly a Layer 2 protocol suite. to map a known IP address to a MAC address B.What is the result of issuing the frame-relay map ip 192.RouterA is unable to reach RouterB. to map a known DLCI to a MAC address C. In this case. IPsec D. IPSec can be used to protect one or more data flows between IPSec peers.2 202 broadcast command? A. 181.168. 183. The router builds and maintains this address-to-DLCI mapping table. and data authentication between participating peers at the IP layer.1. defines the destination IP address that is used in all broadcast packets on DCLI 202 B. L2TP C. 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.1. defines the DLCI on which packets from the 192. including both dynamic and static mapping entries.168. DLCI 202 should be used. Both routers are running IOS version 12. to map a known DLCI to an IP address E.1. data integrity.168.2 address.2 IP address Answer: D Explanation: This command identifies the DLCI that should be used for all packets destined to the 192. 111 / 262 . PPTP Answer: C Explanation: IPSec is a framework of open standards that provides data confidentiality. which contains all resolved Inverse ARP requests.  significance.Which protocol is an open standard protocol framework that is commonly used in VPNs.2 IP address are received D. easier way to help you pass any IT exams. to resolve a next hop network protocol (IP) address to a local DLCI value.168. to map a known IP address to a SPID F. to map a known MAC address to an IP address D.0. 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). 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.

What occurs on a Frame Relay network when the CIR is exceeded? A.0 command should be “ip address 172. The “frame-relay map ip” statement is correct thus none of the four answers above is correct. Note: In the Frame Relay frame format.) 112 / 262 . All traffic exceeding the CIR is marked discard eligible. 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. B. 185. incorrect LMI configuration C. C. D.DRAG DROP. All TCP traffic is marked discard eligible. 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.0. Drag the Frame Relay acronym on the left to match its definition on the right.0. 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.  After reviewing the command output and graphic.100.2 255.255. That makes answer C correct. All TCP traffic is marked discard eligible and a BECN is sent.The safer . Maybe the “ip address 172. incorrect bandwidth configuration B. what is the most likely cause of the problem? A. incorrect map statement D. easier way to help you pass any IT exams.0. (Not all acronyms are used. But we guess there is a typo in the output.1 255. incorrect IP address Answer: C Explanation: First we have to say this is an unclear question and it is wrong.100.16. 186.

255.255.A network administrator needs to configure a serial link between the main office and a remote location. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.255. The router at the remote office is a non-Cisco router.1 255.1.255. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.1 255.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut D.1.16.1.252 Main(config-if)# no shut B.16.1 255.255.16. easier way to help you pass any IT exams.1 255.  Answer: 187.1. Main(config)# interface serial 0/0 Main(config-if)#ip address 172.255.16.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut C.The safer .255. How should the network administrator configure the serial interface of the main office router to make the connection? A.255.252 Main(config-if)#encapsulation ietf 113 / 262 . Main(config)# interface serial 0/0 Main(config-if)# ip address 172.

C Explanation: CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients.132.17. CHAP uses a three-way handshake.2 ✑host C 192.254. The default.237.3 ✑host D 192. CHAP has no protection from playback attacks. CHAP authentication is performed only upon link establishment.168. ✑The computers in the Hosts LAN have been assigned addresses of 192.1 – 192. CHAP authentication passwords are sent in plaintext.22. The other option is PPP which is standards based and supported by all vendors. You have been tasked to create and apply a numbered access list to a single outbound interface.CORRECT TEXT.The safer .168.201.201.4 ✑The Finance Web Server has been assigned an address of 172. Access to the router CLI can be gained by clicking on the appropriate host. CHAP periodically verifies the identity of the client by using a three-way handshake.) A.168. and may happen again at any time afterwards.18.168. ✑The Public Web Server in the Server LAN has been assigned an address of 172. CHAP authentication periodically occurs after link establishment. easier way to help you pass any IT exams.18.237. ✑The Core connection uses an IP address of 198. 189. D. F. 188.201. ✑All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. C. ✑All hosts in the Core and on local LAN should be able to access the Public Web Server. Answer: B.168.22. ✑All passwords have been temporarily set to “cisco”. HDLC. is Cisco proprietary and works only with other Cisco routers.201.65. The verification is based on a shared secret (such as the client user's password). E.1 ✑host B 192.201. CHAP uses a two-way handshake. 114 / 262 .168. B. A corporation wants to add security to its network.Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two. The requirements are: ✑Host B should be able to use a web browser (HTTP) to access the Finance Web Server. ✑host A 192. This happens at the time of establishing the initial link (LCP). ✑Other types of access from host B to the Finance Web Server should be blocked.201.  Main(config-if)# no shut Answer: B Explanation: With serial point to point links there are two options for the encapsulation. This access list can contain no more than three statements that meet these requirements.

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

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

so we will place our numbered access list here in the outbound direction. Corp1#configure terminal Our access-list needs to allow host B – 192. we know that the servers are located on the fa0/1 interface.168125. easier way to help you pass any IT exams.The safer .24.2 to the Finance Web Server 117 / 262 .  Answer: Macintosh HD:Users:danielkeller:Desktop:Screen Shot 2015-11-17 at 3.34 PM.png From this.

SNMP provides a standardized framework and a common language used for the monitoring and management of devices in a network.22. Set Answer: A.17 via HTTP (port 80). 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. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192.109.17 to check if you are allowed to access Finance Web Server or not. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config 190.22. 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.D Explanation: SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. just click on host B to open its web browser. To verify.22. our next two instructions are these: ✑ Other types of access from host B to the Finance Web Server should be blocked.B.  172. Infrastructure Services Which three are the components of SNMP? (Choose three) A. repeat to make sure they can reach the public server at 172. This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long). easier way to help you pass any IT exams.17 eq 80 Then.168.109. In the address box type http://172. These 118 / 262 . The term NMS can be applied to either a dedicated device used for network management.18 any Finally.109.22.109.22.125.Topic 5. ✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. SNMP Agent E. or the applications used on such a device.18.The safer .17 Our last instruction is to allow all hosts in the Core and on the local LAN access to the Public Web Server (172.109.2 host 172. MIB B. The most common managing system is called a Network Management System (NMS).22.22. SNMP Manager C.109. Finally. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172. Click on other hosts (A.109.18) Corp1(config)#access-list 100 permit ip host 172. Then. If your configuration is correct then you can access it. C and D) and check to make sure you can’t access Finance Web Server from these hosts. SysLog Server D. A variety of network management applications are available for use with SNMP.

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

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

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

31.0/27 E.31. unspecified address Answer: B Explanation: IPv6 Anycast addresses are used for one-to-nearest communication.0/26 B.What is known as "one-to-nearest" addressing in IPv6? A. Also the question requires the maximum number of subnets (which minimum the number of hosts-per-subnet) so /27 is the best choice. easier way to help you pass any IT exams.Refer to the exhibit.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. 10.188.The safer .31.0/28 D.31. 200. 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). anycast C.0/25 C. 201.You are working in a data center environment and are assigned the address range 10. 10.31. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each. 10.188. 10.188. global unicast B.0/23. multicast D.188.188.  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. 10. 122 / 262 . Which IP address range meets these requirements? A.188.31.

16. 202. the Serial0/0 interface address will not support the NAT configuration as shown.What command instructs the device to timestamp Syslog debug messages in milliseconds? A. Because of the addressing on interface FastEthernet0/1. Answer: C Explanation: The “list 1 refers to the access-list number 1. B. The actual link local addresses are assigned with the prefix fe80::/64.  What statement is true of the configuration for this network? A. FE08::280e:611:a:f14f:3d69 Answer: A Explanation: In the Internet Protocol Version 6 (IPv6). FE81::280f:512b:e14f:3d69 C.The safer .Which of these represents an IPv6 link-local address? A. FEFE:0345:5f1b::e14d:3d69 D. the address block fe80::/10 has been reserved for link-local unicast addressing. FE80::380e:611a:e14f:3d69 B. service timestamps debug datetime localtime<input type 123 / 262 .2.0/24. The number 1 referred to in the ip nat inside source command references access-list number 1. D. service timestamps debug datetime msec<input type C. 203. manual) mechanisms.0/24 and 172. easier way to help you pass any IT exams. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported.g.1. service timestamps log datetime localtime<input type B. C.16. ExternalRouter must be configured with static routes to networks 172. They may be assigned by automatic (stateless) or stateful (e.

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

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

multicast.C Explanation: ✑ A single interface may be assigned multiple addresses of any type (unicast. Every IPv6 interface contains at least one loopback address.The safer . ✑ Optionally.254. C.255.254.  Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses? A. 126 / 262 .255. Configure IP address parameters from DHCP server to a host.0000 0000 -> 255. Answer: C. ✑ Every IPv6-enabled interface must contain at least one loopback and one link-local address. D. D.255.248.255. anycast. and broadcast.) A.0 D.) A. Answer: B. 255. B. It involves clients and a server operating in a client-server model. The first 64 bits represent the dynamically created interface ID.Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two. 255.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). B. multicast). 255. F.0 211. 212. anycast. every interface can have multiple unique local and global addresses.0 Answer: B Explanation: 310 hosts < 512 = 29 -> We need a subnet mask of 9 bits 0 -> 1111 1111. E. easier way to help you pass any IT exams.0 C. Set the IP gateway to be used by the network. Perform host discovery used DHCPDISCOVER message. Monitor IP performance using the DHCP server.1111 1110. E. 255. C.1111 1111. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory. A single interface may be assigned multiple IPv6 addresses of any type. Provide an easy management of layer 3 devices.Which two of these statements are true of IPv6 address representation? (Choose two.0 B. Assign and renew IP address from the default pool. There are four types of IPv6 addresses: unicast.252. DHCP servers assigns IP addresses from a pool of addresses and also assigns other parameters such as DNS and default gateways to hosts.255.255.

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

B or . network or subnetwork IP address B.) A. but this can only be done once in an IP address.16.0.  In this VLSM addressing scheme. broadcast address on the network C.0. 172.0.0/18. which two IP addresses should never be assignable to hosts? (Choose two.16. change of destination address in the IPv6 header D.When a DHCP server is configured. The leading 0’s in a group can be collapsed using ::.16. and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address.16. All these 3 subnets have the same form of 172. 172.64.0.0 /16 E.x. 172.0.x so our summarized subnet must be also in that form -> Only A.0 /20 C.0/24 and 172.64. no broadcast B.0.32. 2004:1:25A4:886F::1 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits. -> Only answer A has these 2 conditions ->.16.32. 2002:7654:A1AD:61:81AF:CCC1 C.The network administrator has been asked to give reasons for moving from IPv4 to IPv6.32. 172. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.E Explanation: IPv6 does not use broadcasts.0 /17 F. easier way to help you pass any IT exams. NAT Answer: A. The groups are separated by colons (:). change of source address in the IPv6 header C. IP address leased to the LAN D. IP address used by the interfaces 128 / 262 . 172. 172. 2001:0000:130F::099a::12a B. 215.128. 172.The safer . 216. What are two valid reasons for adopting IPv6 over IPv4? (Choose two. 217. autoconfiguration F.Which option is a valid IPv6 address? A. FEC0:ABCD:WXYZ:0067::2A4 D.0 /16 Answer: A Explanation: Router A receives 3 subnets: 172.) A. Telnet access does not require a password E. each group representing 16 bits (two octets). 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. what summary address would be sent from router A? A.0 /16 B.0 /24 D.0/18.16.16.

D.  E. manually assigned address to the clients F.5E00.1. Gateway Load Balancing Protocol (GLBP) can use of up to four routers simultaneously. any-to-many communication model D. 0007. Anycast is designed to send a packet to the nearest interface that is a part of that anycast group. 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). The active virtual gateway will reply with one of four possible virtual MAC addresses. However in a LAN setting the nearest interface is found depending on the order the neighbors were learned. a unique IPv6 address for each device in the group E.) A. The GLBP member routers will reply with one of four possible burned in hardware addresses. easier way to help you pass any IT exams. one-to-many communication model B. These IPv6 addresses are global addresses.What is a valid HSRP virtual MAC address? A. there is still only one virtual IP address but each router has a different virtual MAC address.2. The sender creates a packet and forwards the packet to the anycast address as the destination address which goes to the nearest router. The AVG is responsible for replying ARP requests from hosts/clients.255/24) should never be assignable to hosts.The safer .AE01 129 / 262 .B Explanation: Network or subnetwork IP address (for example 11. 219. delivery of packets to the group interface that is closest to the sending device Answer: B. other routers must wait for the primary to fail because they can be used.B400. C.0. you will receive an error message saying that they can’t be assignable. All GLBP member routers will reply in round-robin fashion.0. 0000.Which three are characteristics of an IPv6 anycast address? (Choose three.0/8 or 13. these addresses can be assigned to more than one interface unlike an IPv6 unicast address.E.0. First a GLBP group must elect an Active Virtual Gateway (AVG).F Explanation: A new address type made specifically for IPv6 is called the Anycast Address. the same address for multiple devices in the group F. 218. designated IP address to the DHCP server Answer: A. Answer: A Explanation: One disadvantage of HSRP and VRRP is that only one router is in use. one-to-nearest communication model C.1. The anycast packet in a LAN setting forwards the packet to the neighbor it learned about first. B. However.0/16) and broadcast address (for example 23.In GLBP. When try to assign these addresses to hosts. 220. The nearest router or interface is found by using the metric of a routing protocol currently running on the network.01A3 B. The active virtual gateway will reply with its own hardware MAC address. which router will respond to client ARP requests? A. In GLBP.

16 255.252. 192.Fxxx.168.255.16 255.255.0. Which 3 types of logs would be generated (choose four) A.252. easier way to help you pass any IT exams.252 C. Alerts C.255.255.168.252.0c07.255. a mask of 255.240 Answer: D Explanation: For a class C network.255.0C07.8 255.252 D. 192. A subnet mask of 255.224 will allow for up to 8 networks with 32 IP addresses each (30 usable).240 B.224 E. 192. 192.0000 through 0005.  C.255.Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs.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.0FFF.168. with each LAN containing 5 to 26 hosts? A.255.73A0. 221. Which network address and subnet mask meet this requirement? A.248 C.ACxx .5E00. Errors E. two or more devices support a virtual router with a fictitious MAC address and unique IP address.252 Answer: B Explanation: A subnet mask of 255.255.255. +With HSRP version 2. Note: Another case is HSRP for IPv6.168.255.255.B301 Answer: C Explanation: With HSRP.255.252.Syslog was configured with a level 3 trap.255. in which xx is the HSRP group.0 255. 255.252. 0.255.255.255.0. the virtual router’s MAC address is 0000. 0007.0C9F.AC15 D. Warnings 130 / 262 . Critical D.The safer . 192.255.73A0. in which the MAC address range from 0005. +With HSRP version 1. 223.255.0 D.255. in which xxx is the HSRP group.255. 0000. 255.248 will allow for up to 6 hosts to reside in this network.252 will allow for only 2 usable IP addresses. since we cannot use the network or broadcast address. Emergencies B.255. There are two version of HSRP.252 B. 255.168. 222.255. the virtual MAC address if 0000. 255.8 255.255.240 E.

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

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

1. So each hosts in VLAN 10 must use fa0/0. host B default gateway: 192. 133 / 262 .168.78 /27: 192.168.10 IP – same with hosts in VLAN 20.79. VLAN 10 is configured on fa0/0.168. host A IP address: 192. Host B (using port 9 – VLAN 20) must use IP 192. Host A (using port 6 – VLAN 10) must use IP 192.128 E.1.94 and for 192. 229.1.190 Answer: A.168.1. Which means each host in the VLAN must corresponds with the VLAN configured on the sub-interfaces.168.F Explanation: It’s a “router-on-a-stick” configuration. So find out the usable IP addresses on each sub-interfaces – for 192.64 C. easier way to help you pass any IT exams.The safer .78.1. host B IP address: 192.190.1. host A default gateway: 192.168.168. Which three values could be used for the configuration of these hosts? (Choose three.79 B. default gateway 192.Refer to the exhibit.65 – .129 F.1.20.1.10 and VLAN 20 on fa0/0.190.128 – .C.1.1.168.  A network administrator is adding two new hosts to SwitchA.130.10 IP address as their default gateway.1.168. default gateway 192. each hosts must also be in the same subnet as fa0/0.168.130 /26: 192.1.168. host A IP address: 192.) A.78 D.1.1.168.168.168. host B IP address: 192.

Network A . SET Answer: A.172.3.172.3.172. easier way to help you pass any IT exams. a /25 is required for 120 hosts and again 172.The safer .0/30 is valid.3. Link A . has been noticed.0/30 E.112/30 Answer: B.192/26 D. Which network addresses should be used for Link A and Network A? (Choose two.16. Also. which is nothing more than an acknowledged TRAP.3. 134 / 262 .128/25 is the best.48/26 B.16.16.3. INFORM C.B Explanation: A TRAP is a SNMP message sent from one application to another (which is typically on a remote host).3.128/25 C.) A. 231. 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.16.Refer to the diagram. 172.D Explanation: Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used. GET D.3.172.172.16.16. valid option. SNMPv2 PDUs fixed this by introducing the notion of an INFORM. 230. Network A .16. TRAP B. Network A .40/30 F. Their purpose is merely to notify the other application that something has happened.16. Link A . Link A .172.What are the alert messages generated by SNMP agents called? A. etc.3.  All of the routers in the network are configured with the ip subnet-zero command.

255. Which statements describe the addressing scheme that is in use in the network? (Choose three.D.C.F Explanation: The subnet mask in use is 255. The subnet mask in use is 255.255. one with an IP address that belongs in each VLAN. which is needed.C.What levels will be trapped if the administrator executes the command router(config)# logging trap 4 (Choose four) A.255. Notice C.16.25 can be assigned to hosts in VLAN1: The usable host range in this subnet is 172. 232. Warning Answer: A. The IP address 172. B.The safer .1-172.16. Emergency B. The LAN interface of the router is configured with one IP address.128.16.255. Alert D.1.) A. The IP address 172.1. conditions exist 6 informational Informational messages 7 debugging 135 / 262 . C. The subnet mask in use is 255.255.126 The LAN interface of the router is configured with multiple IP addresses: The router will need 2 subinterfaces for the single physical interface. F.25 can be assigned to hosts in VLAN1 D. Answer: B. easier way to help you pass any IT exams.205 can be assigned to hosts in VLAN1 E. The LAN interface of the router is configured with multiple IP addresses.16.255.1.128: This is subnet mask will support up to 126 hosts.1.  All hosts have connectivity with one another. Error E.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.192. but significant. The IP address 172.1.16.

warnings will be logged. that level and all the higher levels will be logged. The configuration of dynamic ACL can be read here: http://www. errors. autoconfiguration C.Which IPv6 address is valid? A. checksums Answer: B. no broadcasts D.0. This is accomplished by autoconfiguration. In IPv6.0. critical.C. dynamic D. complicated header E. 235. and therefore does not define broadcast addresses. This feature was critical to allow network connectivity to an increasing number of mobile devices. reflexive Answer: C Explanation: We can use a dynamic access list to authenticate a remote user with a specific username and password. Which ACL can be used? A.What are three features of the IPv6 protocol? (Choose three. standard B. optional IPsec B. easier way to help you pass any IT exams. the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1. extended C.The safer . The authentication process is done by the router or a central access server such as a TACACS+ or RADIUS server. For example. which is analogous to IPv4 multicast to address 224.) A. 2001:0db8:0:130H::87C:140B C. alerts. the transmission of a packet to all hosts on the attached link using a special broadcast address.com/en/US/tech/tk583/tk822/technologies_tech_note09186a0080094524.e. shtml 234. It is possible to plug a node into an IPv6 network without requiring any human intervention. all the logging of emergencies. 2031:0:130F::9C0:876A:130B Answer: D Explanation: 136 / 262 .cisco. plug-and-play F.  Debugging messages If you specify a level with the “logging trap level” command. 2031::130F::9C0:876A:130B D.1.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. 233. i. by using the “logging trap 4 command.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. IPv6 does not implement traditional IP broadcast. 2001:0db8:0000:130F:0000:0000:08GC:140B B.

192 F. 237.248. A routing prefix is the sequence of leading bits of an IP address that precede the portion of the address used as host identifier.1. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.255. 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.1. which is a bit mask covering the number of bits used in the prefix.255.255.128 C. which of the following subnet masks will support an appropriate addressing scheme? (Choose two. 255. 255.255.A national retail chain needs to design an IP addressing scheme to support a nationwide network.255.1. each group representing 16 bits (two octets).0/22 137 / 262 .255.The safer .0 network with a 24-bit routing prefix (192. with the organization's network address space (see also Autonomous System) partitioned into a tree-like structure. but this can only be done once in an IP address.0 B.224 E. An IPv4 subnet mask is frequently expressed in quad-dotted decimal representation. easier way to help you pass any IT exams.255.  An IPv6 address is represented as eight groups of four hexadecimal digits. In IPv4 networks. 255. Working with only one Class B address. 255. The groups are separated by colons (:).255.g.0. 255.. 236.252.255. What is the most efficient summarization that R1 can use to advertise its networks to R2? A. 172.Refer to the exhibit.0 D.0/24). The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet.255.168. Such subnets can be arranged hierarchically.255.0 Answer: B. 255.255. Routers are used to manage traffic and constitute borders between subnets.168. e. the routing prefix is often expressed as a "subnet mask".) A.0 is the subnet mask for the 192. The leading 0’s in a group can be collapsed using ::.

172.0/25 172.1.1. SNMPv2c (the "c" stands for "community") is an Experimental Internet Protocol defined in RFC 1901.4. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic).7.1.5.1.1. 172.1.0/24 172.  B. and RFC 1906.1.0/24 Answer: C Explanation: The 172. RFC 1905.) Security is based on community strings.1.1.0/22 subnet encompasses all routes from the IP range 172.128/25 172.4. easier way to help you pass any IT exams.6.1.The safer . SNMP Security Models and Levels Model Level Authentication Encryption What Happens v1 noAuthNoPriv Community String No 138 / 262 .4.1.0/21 C.1.0/22 D. 172.255. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.0 – 172.0. -SNMPv2c — The community-string based Administrative Framework for SNMPv2.6. 172. defined in RFC 1157.4.0/24 172.What authentication type is used by SNMPv2? A.5. HMAC-SHA C.1. 238.1.7.0/24 E. and uses the community-based security model of SNMPv1.0/24 172.7.0/24 172. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275.4.4. -SNMPv3 — Version 3 of SNMP.0/24 172. HMAC-MD5 B. CBC-DES D. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. 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.

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

16. efficient utilization of MAC addresses D. 172.0. Reference: http://www. reduces routing table entries B./16 D.16.0./20 network is the best option as it includes all networks from 172. which offers the following benefits: ✑ Efficient allocation of addresses—Hierarchical addressing lets you take advantage of all possible addresses because you group them contiguously. By summarizing routes. 241.Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two. 172.  Which address range efficiently summarizes the routing table of the addresses for router Main? A.0. 140 / 262 .0.Refer to the exhibit.0.) A.0. 172.0 and does it more efficiently than the /16 and /18 subnets.16.16. dedicated communications between devices E.com/articles/article.The safer .16.asp?p=174107 242. ease of management and troubleshooting Answer: A.0 – 172. this is most easily accomplished when you employ a hierarchical addressing plan.16. The /21 subnet will not include all the other subnets in this one single summarized address.16.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.0.0.0.0.16./21 B. you can keep your routing table entries (on the routers that receive the summarized routes) manageable. auto-negotiation of media rates C./20 C. you should try to keep your routing tables as small as possible by using route summarization.0/18 Answer: B Explanation: The 172. easier way to help you pass any IT exams.ciscopress. 172. Route summarization is a way of having a single IP address represent a collection of IP addresses.

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

0 D.31.16. 172.) A.0 C.0 Answer: A Explanation: For this example. Link-local addresses start with FE00:/12.31. B.16.16.0 B. B514 : 82C3 : 0029 : EC7A : EC72 B. If a global address is assigned to an interface. NAT does conserve addresses but not through host MAC-level multiplexing. 172. 172. 246.Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.16.16.24. There is only one loopback address and it is ::1. B514 : 82C3 :: 0029 : EC7A : 0 : EC72 Answer: D 142 / 262 . NAT eliminates the need to readdress the inside hosts -> B is correct. D.255.28.0. the network address is 172. B514 : 82C3 : 0029 :: EC7A : 0000 : EC72 D. the network range is 172. By allocating specific public IP addresses to inside hosts.  Exchange (IKE).The safer . Encapsulating Security Payload (ESP) and Authentication Header (AH) -> more complex -> A is not correct.255.16.What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72? A.254. 172.252 with a subnet mask of 255. E.Given an IP address 172.16. then that is the only allowable address for the interface. what is the correct network address? A. easier way to help you pass any IT exams.28. Answer: A.D Explanation: Below is the list of common kinds of IPv6 addresses: 247. Global addresses start with 2000::/3.16.172. B514 : 82C3 :: 0029 : EC7A : EC72 C. Link-local addresses start with FF00::/10. 245.0 and the broadcast IP address is 172.16.16.16.16.1 . C. 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.240.0.

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

0. and multicast addressing.1111 1100 (borrow 7 bits) 252. A packet sent to an anycast address is delivered to just one of the member interfaces.10. according to the routing protocol’s definition of distance. which acquire the multicast address destination by participating in the multicast distribution protocol among the network routers.1. Message Integrity B. Which IP addressing scheme defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses? A.0/16 subnetted with mask 255.255. 251.C Explanation: IPv6 addresses are classified by the primary addressing and routing methodologies common in networking: unicast addressing. 10. 10.0/18 subnetted with mask 255.255. 10. Almost any unicast address can be employed as an anycast address.The safer .1111 1110. So our initial network should be 30 – 7 = 23. You can understand it more clearly when writing it in binary form: /23 = 1111 1111. So 10.1111 1111.255.255.0.0. 10.252 D. ✑ An anycast address is assigned to a group of interfaces.10.The network administrator is asked to configure 113 point-to-point links. anycast B.0/23 subnetted with mask 255.252 E. A packet that is sent to a multicast address is delivered to all interfaces that have joined the corresponding multicast group.255. ✑ A unicast address identifies a single network interface. usually belonging to different nodes. Compression C.1.Which three features are added in SNMPv3 over SNMPv2? A.255. The Internet Protocol delivers packets sent to a unicast address to that specific interface. Anycast addresses cannot be identified easily. broadcast C.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).252 C. ✑ A multicast address is also used by multiple hosts. multicast D.255.255.10.255.0/23 is the correct answer.255. podcast E.  A. typically the nearest host. anycast addressing.10.0/25 subnetted with mask 255. they have the same format as unicast addresses.10.0. and differ only by their presence in the network at multiple points. The network used for point-to-point connection should be /30. Authentication D.0000 0000 /30 = 1111 1111. Encryption 144 / 262 .252 B.0/24 subnetted with mask 255. 10. allcast Answer: A. easier way to help you pass any IT exams.

SNMPv2 added the GetNext protocol message to SNMP. B. SNMPv3 added the GetBulk protocol messages to SNMP. so could also be written as ::1/128. E. with the first 127 bits being '0' and the 128th bit being '1'.E Explanation: SNMPv1/v2 can neither authenticate the source of a management message nor provide encryption. and RFC 1906. The security features provided in SNMPv3 are as follows: –Message integrity: Ensuring that a packet has not been tampered with in transit.C. To correct the security deficiencies of 145 / 262 .0. F. 253. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098. defined in RFC 1157. easier way to help you pass any IT exams. ::1 B.) A. 0::/10 Answer: A Explanation: In IPv6 the loopback address is written as. many SNMPv1/v2 implementations are limited to simply a read-only capability. –Encryption: Scrambling the contents of a packet prevent it from being learned by an unauthorized source.Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic).) Security is based on community strings. SNMPv2 added the Inform protocol message to SNMP. Answer: A. :: C.1? A.The safer .Which IPv6 address is the equivalent of the IPv4 interface loopback address 127. SNMPv2 added the GetBulk protocol message to SNMP. no network control applications can be supported. ::1 This is a 128bit number. D.C. 254. SNMPv3 added the Inform protocol message to SNMP. It's just a single address. Without authentication. it is possible for nonauthorized users to exercise SNMP network management functions. and uses the community-based security model of SNMPv1. reducing their utility to that of a network monitor. 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. –Authentication: Determining that the message is from a valid source. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. C. +SNMPv2c – The community-string based Administrative Framework for SNMPv2. RFC 1905.0. It is also possible for nonauthorized users to eavesdrop on management information as it passes from managed systems to the management system. +SNMPv3 – Version 3 of SNMP.  E. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. Error Detection Answer: A. Because of these deficiencies. 2000::/3 D. SNMPv2c (the “c” stands for “community”) is an Experimental Internet Protocol defined in RFC 1901.

Enabling Syslog on a router automatically enables NTP for accurate time stamping.168. The Syslog server automatically notifies the network administrator of network problems.1. 192. 192.1. not between NMS stations and agents. -> E is correct.The safer . A Syslog server provides the storage space necessary to store log files without using router disk space.Refer to the exhibit. Agents that cannot provide values for all variables in a list will send partial information. Note: These two messages are carried over SNMPv3.56/27 C.Which three statements about Syslog utilization are true? (Choose three. 146 / 262 .56/26 B. E. Therefore subnet bits are 2 bits (8-6) in fourth octet. 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. There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages. 192. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses? A. D.168. InformRequest The InformRequest message allows NMS stations to share trap information.1. C. 8bits+ 8bits+ 8bits + 2bits = /26 /26 bits subnet is 24bits + 11000000 = 24bits + 192 256 – 192 = 64 0 -63 64 – 127 256.  SNMPv1/v2.168. (Traps are issued by SNMP agents when a device change occurs.) A. SNMPv3 was issued as a set of Proposed Standards in January 1998. -> A is correct. A new subnet with 60 hosts has been added to the network.1.) InformRequest messages are generally used between NMS stations. -> C is correct. 255. Utilizing Syslog improves network performance.168.64/27 Answer: C Explanation: A subnet with 60 host is 2*2*2*2*2*2 = 64 -2 == 62 6 bits needed for hosts part. GetBulkRequest allows an agent to respond with as much information as will fit in the response PDU. B. easier way to help you pass any IT exams.64/26 D.

0 /21 B.  F.F Explanation: The Syslog sender sends a small (less than 1KB) text message to the Syslog receiver.0. 10." Syslog messages can be sent via UDP (port 514) and/or TCP (typically.0. A syslog service accepts messages and stores them in files.cisco. The Syslog receiver is commonly called "syslogd. For example.3. 258. 10. port 5000).0 /24 Answer: B Explanation: The 10. 10.0.0 /23 D. or prints them according to a simple configuration file.com/c/en/us/products/collateral/services/highavailability/white_paper_c11-557812. System logging is a method of collecting messages from devices to a server running a syslog daemon.0.0/22 subnet mask will include the 10. but has more than 6000 Syslog event messages.0.2(18)SXF contains about 90 SNMP trap notification messages. A Syslog server provides the storage space necessary to store log files without using router disk space." "Syslog daemon.html 257. and 10.0.Refer to the exhibit.0.2. In general. 10. 147 / 262 .0.0. While there are some exceptions. this data is typically sent in clear text over the network.0. and only those four networks.0.The safer . What is the most appropriate summarization for these routes? A.0. Logging to a central syslog server helps in aggregation of logs and alerts. Answer: C.0.0. Cisco devices can send their log messages to a UNIX-style syslog service.0.Refer to the exhibit. such as SSL wrappers.0. A Syslog server helps in aggregation of logs and alerts. there are significantly more Syslog messages available within IOS as compared to SNMP Trap messages. 10.0.0 networks. 10.0 /22 C.1. Reference: http://www.D. a Cisco Catalyst 6500 switch running Cisco IOS Software Release 12." or "Syslog server. easier way to help you pass any IT exams.0.

B. GLBP elects two AVGs and two standby AVGs for redundancy. Answer: A Explanation: An address conflict occurs when two hosts use the same IP address.20.20.168. easier way to help you pass any IT exams.255.248 Default Gateway: 192.168.254 Subnet Mask: 255. C.20.20.25 Answer: C Explanation: For the 192.168.248 Default Gateway: 192.20.168.20. B.  Which rule does the DHCP server use when there is an IP address conflict? A.What are three benefits of GLBP? (Choose three. E.0 Default Gateway: 192. For network 192.168.255.30 Subnet Mask: 255. IP address: 192. the address is removed from the pool.255. (Reference: http://www.255. C.255.168.255.30 Subnet Mask: 255.20. IP address: 192.24/29. D. The address will not be assigned until the administrator resolves the conflict.24. The address is removed from the pool until the conflict is resolved. GLBP can load share traffic across a maximum of four routers. IP address: 192.168. F. GLBP is an open source standardized protocol that can be used with multiple vendors.255.168.240 Default Gateway: 192.20.255. the usable hosts are 192.30 (used for the sales server). During address assignment.20.168.168. GLBP supports clear text and MD5 password authentication between GLBP group members.An administrator must assign static IP addresses to the servers in a network.168.25 D.168. GLBP supports up to 1024 virtual routers.255. Only the IP detected by Ping is removed from the pool. GLBP supports up to eight virtual forwarders per GLBP group.240 Default Gateway: 192. IP address: 192.20. Only the IP detected by Gratuitous ARP is removed from the pool.9 B.html) 259.14 Subnet Mask: 255. The address remains in the pool until the conflict is resolved.) A.24.25 (router) – 192.30 Subnet Mask: 255.168. the router is assigned the first usable host address while the sales server is given the last usable host address.168. If a conflict is detected.20.20.17 E.24/29 network. The IP will be shown. E.1 C.cisco.The safer . Which of the following should be entered into the IP properties box for the sales server? A. DHCP checks for conflicts using ping and gratuitous ARP. IP address: 192. D. even after the conflict is resolved.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. 260.255. 148 / 262 .

168.147.0 Answer: A.148.168.168.146.149.168.0.148.148. 262.168.0 networks.255.149.168.The safer .255 B.0 255.168.0.255.0 0.168.146.168.0. and 192.1.0 only.255 E.147. access-list 10 permit ip 192. access-list 10 permit ip 192.  Answer: B. Which interface command immediately removes the effect of ACL 102? A. no ip access-class 102 in B.C Explanation: “access-list 10 permit ip 192. access-list 10 permit ip 192.255 F. access-list 10 permit ip 192. when combined.168. 192.168. 192.146. to allow traffic from hosts on networks 192. Infrastructure Security A network administrator is configuring ACLs on a Cisco router. no ip access-class 102 out C. An attempt to deny web access to a subnet blocks all traffic from the subnet. no ip access-group 102 in D.0 networks.168.0 0.255.Topic 6.0.Refer to the exhibit. would you use to accomplish this task? (Choose two.0. and “access-list 10 permit ip 192.168.149.255” would allow only the 192.146.E 261.0 and 192.0 0.168.255 C. no ip access-group 102 out 149 / 262 .1.146.146.0.0 0.147. easier way to help you pass any IT exams.0 0.255” would allow only the 192.148.0.168.0.168. access-list 10 permit ip 192.1.0 and 192.D.0 0.255 D.255.0.) A.0. access-list 10 permit ip 192.0.0 0.1. Which two ACL statements.

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

The safer . 266. B. UplinkFast C. You can apply only one access list on any interface. You can configure one access list. Root Guard D. per Layer 3 protocol. 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. 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 place as many access lists as you want on any interface. Answer: C Explanation: We can have only 1 access list per protocol. easier way to help you pass any IT exams. when a PortFast receives a BPDU. per direction and per interface. 151 / 262 . per direction. With BPDU Guard.Refer to the exhibit. You can apply multiple access lists with the same protocol or in different directions.  By using this command. D. BackboneFast B. C. This command is primarily useful for keeping unauthorized individuals from viewing your password in your configuration file 265. BPDU Guard E. it will be shut down to prevent a loop.Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU? A. all the (current and future) passwords are encrypted. BPDU Filter Answer: D Explanation: We only enable PortFast feature on access ports (ports connected to end stations).Which statement about access lists that are applied to an interface is true? A.

which command would you use to verify which interfaces are affected by the ACL? A. Port security interface counters need to be cleared before using the show command. Port security needs to be globally enabled. Port security needs to be configured to shut down the interface in the event of a violation. 268. If any other device is detected. show ip interface E. and then observes the output from these two show commands. Answer: B. show ip access-lists B. The administrator configured the interface and tested it with successful pings from PC_A to RouterA. 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. E. the port is to drop frames from this device. show access-lists C.D Explanation: From the output we can see that port security is disabled so this needs to be enabled. B. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two. F. Also.The safer . The port security configuration needs to be saved to NVRAM before it can become active. easier way to help you pass any IT exams.  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. D. Port security needs to be configured to allow only one learned MAC address. Port security needs to be enabled on the interface.When you are troubleshooting an ACL issue on a router. list ip interface Answer: D 152 / 262 . show interface D. C.) A.

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. 269.168.Refer to exhibit.DRAG DROP. access-list 110 permit ip any any B.The safer . 153 / 262 .168. access-list 50 deny 192.1.1 0. (Not all options are used.Which item represents the standard IP ACL? A.) Answer: 270.0. 271.1 D.168. 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.1.1.0. access-list 2500 deny tcp any host 192. access list 101 deny tcp any host 192.  Explanation: Incorrect answer: show ip access-lists does not show interfaces affected by an ACL.255 C.

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

Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received. 273. No other hosts from the LAN nor the Core should be able to use a web browser to access this server. it it best to begin with the most specific entries first. A dynamically learned MAC address is saved in the VLAN database. C. ACDB B. 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. But as is. A dynamically learned MAC address is saved in the running-configuration file. A network associate is adding security to the configuration of the Corp1 router. all other traffic should be allowed.  B. include the subnet (B) and then finally the rest of the traffic (A). the ACL does not restrict anyone from the network. D. When entering this command. B. Statements A.21. C. 274.128/28) from accessing the network.The safer . easier way to help you pass any IT exams. The user on host C should be able to use a web browser to access financial information from the Finance Web Server. DBAC D. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server.Refer to the exhibit. 155 / 262 . to prevent all hosts (except those whose addresses are the first and last IP of subnet 172. the interface converts all the dynamic secure MAC addresses to sticky secure MAC addresses. even if a more specific of better match is found later on in the access list. in this cast the two hosts in line C and D. 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. the command switchport port-security mac-address sticky enables sticky learning.1. BADC C.CORRECT TEXT. So. How can the ACL statements be re-arranged so that the system works as intended? A. E. Then.

  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.18.196.33.254 ✑host A 192.168.23.33.22.33.1 192.168.2 ✑host C 192. All passwords have been temporarily set to "cisco".168.242.33.17 172.22.168. Access to the router CLI can be gained by clicking on the appropriate host.The safer . The computers in the Hosts LAN have been assigned addresses of 192.65. The Finance Web Server is assigned an IP address of 172. The Core connection uses an IP address of 198.242.33.3 ✑host D 192.168.242. No other hosts will have web access to the Finance Web Server. Answer:   156 / 262 . easier way to help you pass any IT exams.30.168.22. All other traffic is permitted.4 The servers in the Server LAN have been assigned addresses of 172.33.1 ✑host B 192.

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

All frames arriving on 2950Switch with a destination of 0000.FFFF. When you assign secure MAC addresses to a secure port.  The following commands are executed on interface fa0/1 of 2950Switch.FFFF. Only frames from source 0000.D Explanation: The configuration shown here is an example of port security. C. specifically port security using sticky addresses. the first learned MAC address of 2950Switch. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1. B.00bb.bbbb. Only host A will be allowed to transmit frames on fa0/1. but sticky MAC addresses can be learned dynamically. This frame will be discarded when it is received by 2950Switch. 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 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. Port security with sticky MAC addresses retains dynamically learned MAC addresses during a link-down condition. switch(config-if)#switchport mode trunk 158 / 262 . D. Port security with sticky MAC addresses provides many of the same benefits as port security with static MAC addresses. the port does not forward ingress traffic that has source addresses outside the group of defined addresses. If you limit the number of secure MAC addresses to one and assign a single secure MAC address. the device attached to that port has the full bandwidth of the port.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.The safer . F. What two functions will occur when this frame is received by 2950Switch? (Choose two. will be forwarded out fa0/1. E.) A. 276.00aa. easier way to help you pass any IT exams. Answer: B.

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

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

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

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

which is a network layer protocol used to propagate control message between host and router. At which OSI layer is the problem? A. data link layer B.An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.1 and sees the output as shown.The safer .  An administrator pings the default gateway at 10. Click the console connected to RouterC and issue the appropriate commands to answer the questions. The command ping is often used to verify the network connectivity.10. easier way to help you pass any IT exams. 163 / 262 . 283. so it works at the network layer. session layer E. application layer C. access layer D. network layer Answer: E Explanation: The command ping uses ICMP protocol.10.

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

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

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

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

The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Remove access-group 102 out from interface s0/0/0 and add access-group 114 in E. 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.DRAG DROP. Change the ip access-group command on fa0/0 from “in” to “out”. Remove access-group 106 in from interface fa0/0 and add access-group 104 in. Answer: Explanation: 168 / 262 . C.The safer . Each router output line is the result of a show ip interface command. D.  B. easier way to help you pass any IT exams. Not all categories are used. 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. 284. Remove access-group 106 in from interface fa0/0 and add access-group 115 in. Drag each category on the left to its corresponding router output line on the right.

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

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

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

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

173 / 262 . No host could connect to RouterC through s0/0/1.The safer .  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.

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

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

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

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

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

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. flow sampler D. For example. You add the record to the flow monitor after you create the flow monitor. flow exporter Answer: A Explanation: Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring. which is configured for the flow monitor and stored in the flow monitor cache.0 are unable to reach hosts in network 192.  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. switches.What Netflow component can be applied to an interface to track IPv4 traffic? A. 288.168. what are two possible reasons for the failure? (Choose two. flow monitor B. Flow monitors consist of a record and a cache.3.0. Based on the output from RouterA. You can determine the cause of high CPU use in a router by using the output of the show process cpu command. flow record C. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface.2.The safer . printers…). B. 179 / 262 . The cable that is connected to S0/0 on RouterA is faulty. Hosts in network 192. SNMP Answer: D Explanation: Sometimes.) A. Interface S0/0 on RouterB is administratively down.Refer to the exhibit.168. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record. easier way to help you pass any IT exams. servers. Note: A managed device is a part of the network that requires some form of monitoring and management (routers. workstations.

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

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

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

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

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

so it does not peer with R5. and the network command is missing on R4.4.6/32 are not appearing in the routing table of R5.4.0.5/32. The loopback addresses haven't been advertised. Automatic summarization is enabled.4/32.  The loopback interfaces on R4 with the IP addresses of 10. C. The interfaces are shutdown. and 10. R4 has been incorrectly configured to be in another AS. Why are the interfaces missing? A. D.4.4.0.0 network is displayed. easier way to help you pass any IT exams. 10.4. Answer: B Explanation: 185 / 262 .4. so only the 10.The safer . B. so they are not being advertised.

E.1. easier way to help you pass any IT exams.The safer . when it should be AS 1.1. C.2. B. Configure the gateway on Host B as 10. D. 292.1. 186 / 262 .2.2. Configure the IP address of Host A as 10. Which of the following will correct the problems? (Choose two. Configure the gateway on Host A as 10. Configure the masks on both hosts to be 255.2. we see that R4 is configured for EIGRP AS 2.Refer to the exhibit.255.) A.  For an EIGRP neighbor to form.254.1. The network shown in the diagram is experiencing connectivity problems. Configure the IP address of Host B as 10.1.1.2. the following must match: -Neighbors must be in the same subnet -K values -AS numbers -Authentication method and key strings Here.224.255.

1.1.126 Mask : 255.1.The safer .1.255. 187 / 262 .255.254 The configuration of sub-interface on router 2 is as follows: Fa0/0. Configure the masks on both hosts to be 255.255.255.0 Gateway : 10.2.X Mask : 255.1. The layer3 addressing information of Host B should be modified as follows: Address : 10.255.An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.1.1.10.10. easier way to help you pass any IT exams.D Explanation: The switch 1 is configured with two VLANs: VLAN1 and VLAN2.255.1.  F.255.1.240.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong.0 293.0 Gateway : 10.2. Click the console connected to RouterC and issue the appropriate commands to answer the questions.1.1 -.2 -.254 The IP information of member Host B in VLAN2 is as follows: Address : 10. The IP information of member Host A in VLAN1 is as follows: Address : 10.255. Answer: B.12 Mask : 255.1.254/24 VLAN1 Fa0/0.1.

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

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

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

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

4. It would allow all traffic from the 10. Routing protocol updates for the 10. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.0.4. Answer: B Explanation: From the output of access-list 114: access-list 114 permit ip 10.4.4. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.0 0.The safer . easier way to help you pass any IT exams.0 network would not be accepted from the fa0/0 interface.  B. 192 / 262 . C.4.0/24 network 294.0 network.Scenario Refer to the topology.0.4.4. IP traffic would be passed through the interface but TCP and UDP traffic would not. D.4.255 any we can easily understand that this access list allows all traffic (ip) from 10.

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

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

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

C. B. 196 / 262 .  An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. The R3 router ID is configured on R6. There is an area ID mismatch. the username is not configured on R3 and R6. What is causing the problem? A. easier way to help you pass any IT exams. D.The safer . There is a PPP authentication issue. There is an OSPF hello and dead interval mismatch. 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.

easier way to help you pass any IT exams. respectively.Scenario Refer to the topology. R2.The safer . SW1 and SW2 are also connected to the routers R4 and R5. 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. 197 / 262 . Your company has connected the routers R1. Use the appropriate show commands to troubleshoot the issues.  295. R2 and R3 are connected to the switches SW1 and SW2.

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

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

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

C. D.The safer . The IP address that is configured on the Lo1 interface on R5 is incorrect.5. Success rate is 0 percent (0/5) Why are the pings failing? A.5.  Study the following output taken on R1: R1# Ping 10. B. The network statement is missing on R5. 201 / 262 . timeout is 2 seconds: Packet sent with a source address of 10.1. which is the loopback0 IP address of R1. When looking at the EIGRP configuration on R1. The loopback interface is shut down on R5.1 …….1.1.1 network statement is missing on R1. The network statement is missing on R1. we see that the 10.5.5.55.1.55 source 10. 100-byte ICMP Echos to 10.1.1.1. Sending 5.1 Type escape sequence to abort. easier way to help you pass any IT exams. Answer: C Explanation: R5 does not have a route to the 10.1.1 network.

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

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

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

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

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

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

SW1 and SW2 are also connected to the routers R4 and R5. R2. Use the appropriate show commands to troubleshoot the issues. easier way to help you pass any IT exams. 298. 208 / 262 . respectively. and R3 with serial links. You are required to troubleshoot and resolve the EIGRP issues between the various routers. 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).  Explanation: Looking at the configuration of R1. R2 and R3 are connected to the switches SW1 and SW2.Scenario Refer to the topology.The safer . The EIGRP routing protocol is configured. Your company has connected the routers R1.

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

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

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
215 / 262

show interfaces Answer: A. and winipcfg are PC commands.The safer . ✑✑✑ ✑ 302 CORRECT TEXT.  +IP destination address +Source port +Destination port +Layer 3 protocol type +Class of Service +Router or switch interface 301. ping B.198. ✑The appropriate static routes have also been configured (since the company will be a stub network.18. ipconfig D.184. Configuration information: router name – Weaver inside global addresses – 198.30/28 number of inside hosts – 14 216 / 262 .168.168. winipcfg F. show ip route. ipconfig. not IOS. show ip route E. Functionality can be tested by clicking on the host provided for testing.) A. Tracert. 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.17 – 192.100. 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. tracert C.192.Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.D.184. no routing protocol will be required) ✑All passwords have been temporarily set to “cisco”.110/29 inside local addresses . and show interfaces are all valid troubleshooting IOS commands. easier way to help you pass any IT exams.F Explanation: Ping.18.100.105 .

easier way to help you pass any IT exams. The company has 14 hosts that need to access the internet simultaneously.100.105 198.100.168.The safer .18. Answer: 217 / 262 .18.184.30.184.  A network associate is configuring a router for the weaver company to provide internet access. The ISP has provided the company six public IP addresses of 198. The hosts in the company LAN have been assigned private space addresses in the range of 192.17 – 192.168.110.

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. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. 218 / 262 .Scenario: Refer to the topology.  303.The safer .

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

The safer . easier way to help you pass any IT exams.  220 / 262 .

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

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

CCNA. easier way to help you pass any IT exams. The link between Host1 and Switch1 is down.77. All passwords on all routers are cisco. Access to the router CLI can be gained by clicking on the appropriate host.18.0. we can infer that the link between Router1 and Router2 is down. B. The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers. What is the problem? A.168. The link between Switch1 and Router1 is down. Answer: C Explanation: Host1 tries to communicate with Host2. Interface Fa0/0 on Router1 is shutdown. 305.17 223 / 262 .9 S0/1 – 192.77.CORRECT TEXT. All routers should be running an EIGRP AS number of 12.168. F.168.  A network administrator attempts to ping Host2 from Host1 and receives the results that are shown. CCNA. The message destination host unreachable from Router1 indicates that the problem occurs when the data is forwarded from Host1 to Host2.com has a small network that is using EIGRP as its IGP. Currently. TCP/IP is not functioning on Host1 C.168. E.21 ENG Fa0/0 – 192.34 Fa1/0 – 192. The link between Router1 and Router2 is down. All over interconnectivity and Internet access for the existing locations of the company are working properly.com has recently added the ENG router.6 S0/0 – 192. D.168.27. IP addresses are listed in the chart below. MGT Fa0/0 – 192. Router MGT is also running static routing to the ISP. The default gateway on Host1 is incorrect.The safer .50. According to the topology.12.33 S1/0 – 198. the ENG router does not have connectivity to the ISP router.

168.168.168.10 Parts2 Fa0/0 – 192.22 Answer: On the MGT Router: 224 / 262 .168.12.  Fa0/1 – 192.12.65 Fa0/1 – 192.12.33 Fa0/1 – 192.50.49 S0/0 – 192.168.1 Parts1 Fa0/0 – 192.81 S0/1 – 192.168.12.168.The safer .12.27. easier way to help you pass any IT exams.

225 / 262 .1. The address of SwitchA is a subnet address.32 Broadcast address: 192.63 For the network 192. 307.The safer .65/27: Increment: 32 Network address: 192.1. Answer: D Explanation: Now let’s find out the range of the networks on serial link: For the network 192.168.168. HostA is not on the same subnet as its default gateway.What are three reasons to collect Netflow data on a company network? (Choose three. D. what is the cause of this problem? A.168. To identify applications causing congestion. B.77. B.0 306.1.62/27: Increment: 32 Network address: 192. C.Refer to the exhibit. The Fa0/0 interface on RouterA is on a subnet that can't be used. Assuming routing is properly configured.168.  Config t Router eigrp 12 Network 192.64 Broadcast address: 192.168. E.1.1.1.) A.168. The Fa0/0 interface on RouterB is using a broadcast address.95 -> These two IP addresses don’t belong to the same network and they can’t see each other. The serial interfaces of the routers are not on the same subnet. easier way to help you pass any IT exams. To authorize user network access.168. HostA cannot ping HostB.

0/27 . D. secret password is xxx 3. To detect suboptimal routing in the network.  C. Interfaces should be enabled. 1. bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. To report and alert link up / down instances.or under-subscribed.0. 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. Password In access user EXEC mode using the console is xxx 4. and bandwidth utilization.165. easier way to help you pass any IT exams.router has fourth assignable host address in subnet Serial network is 192.-> F is correct.The safer . 308. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC. +Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions. Central Florida Widgets recently installed a new router in their office.201.176/28 . Configure the router per the following requirements: Name of the router is R2 Enable. +Reduction in peak WAN traffic Use NetFlow statistics to measure WAN traffic improvement from application-policy changes.router has last assignable host address in the subnet. F. understand who is utilizing the network and the network top talkers. +Validation of QoS parameters Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over. Enable. Answer: A.2.D.F Explanation: NetFlow facilitates solutions to many common problems encountered by IT professionals. +Troubleshooting and understanding network pain points Diagnose slow network performance. To diagnose slow network performance. Router protocol is RIPV2 Attention: In practical examinations. E. -> A is correct. +Detection of unauthorized WAN traffic Avoid costly upgrades by identifying the applications causing congestion. IP information 226 / 262 . Name or the router is xxx 2. bandwidth hogs. -> D is correct. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.CORRECT TEXT. please note the following. the actual information will prevail. The password to allow telnet access to the router is xxx 5. +Security and anomaly detection NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars.

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

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

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

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

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

310. The traffic goes through R3.5 and 10.5. using the “show ip route” command on R1 we can see that to reach 10.55 the preferred path is via Serial 1/3. Answer: A Explanation: Using the “show ip int brief command” on R5 we can see the IP addresses assigned to this router. The routers cannot establish an adjacency relationship on their common Ethernet link.The safer . The traffic is unequally load-balanced over R2 and R3.  Which path does traffic take from R1 to R5? A.A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The traffic is equally load-balanced over R2 and R3. B.5.5.5. easier way to help you pass any IT exams. Then. C. 232 / 262 . D. The traffic goes through R2. which we see from the diagram is the link to R2.

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

The Core connection uses an IP address of 198.240.3 Answer: 313.What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three.2 ✑host C 192.240.  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.240.1 ✑host B 192. Access to the router CLI can be gained by clicking on the appropriate host.247.1 192.168. No other hosts will have web access to the Finance Web Server. All passwords have been temporarily set to "cisco".18.) A.240.168.168. CPU utilization B.168. where Netflow data will be sent 234 / 262 . easier way to help you pass any IT exams.254 ✑host A 192.The safer .65 The computers in the Hosts LAN have been assigned addresses of 192.240.168. All other traffic is permitted.

html 235 / 262 . Depending on how much traffic you have and how you configure it.E Explanation: Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. For example. protocol interface and class of service are grouped into a flow and then packets and bytes are tallied. destination IP address F. Services running on the device may also be affected. 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. IP next-hop Answer: A.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900ae cd80406232. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets. source IP address B. Some symptoms of high CPU utilization are very large jitter and increased delay.com/tip/How-the-NetFlow-protocolmonitors-your-WAN 314.techtarget. the traffic can be substantial.cisco. port availability E. source MAC address C. Traditionally. but you will still want to check it out before you turn on the feature. WAN encapsulation Answer: A. an IP Flow is based on a set of 5 and up to 7 IP packet attributes. egress interface D. Cisco's performance testing seems to indicate that newer hardware can accommodate this load pretty well. 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. 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.B. SNMP version F. number of devices exporting Netflow data D. easier way to help you pass any IT exams.C Explanation: NetFlow has a reputation for increasing CPU utilization on your network devices. Reference: http://searchenterprisewan.D. Another thing to keep in mind is the amount of data you're going to be sending across the network. source/destination ports. Also bear in mind that the flows from aggregating large numbers of devices can add up.  C. Reference: http://www. ingress interface E.The safer .What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three.) A.

the signal on the cable is acceptable… Next we “verify NIC operation”. checking if the IP can be assignable for host. Based on the layered approach to troubleshooting and beginning with the lowest layer. “verify Ethernet cable connection” means that we check if the type of connection (crossover.0.0. 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.com. easier way to help you pass any IT exams. We do this by simply making a ping to the loopback interface 127. the RJ45 headers are plugged in. in this case an Ethernet cable connection.  315. Mixed Questions 236 / 262 .1. rollover…) is correct. A user is unable to connect to the Internet.com to assure that the far end server is not down (it sometimes make we think we can’t access to the Internet). For your information. microsoft.DRAG DROP. drag each procedure on the left to its proper category on the right. 2) and TCP/IP stack (layer 3) are working properly.The safer . If it works then the NIC card (layer 1. We are using a URL so this step belongs to layer 7 of the OSI model. Topic 8. For example. Verify IP configuration belongs to layer 3. straight-through. Answer: Explanation: The question asks us to “begin with the lowest layer” so we have to begin with Layer 1: verify physical connection.

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

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

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

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

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

) A. router(config)#ip route 0.  A. 338.0.Which two statements about northbound and southbound APIs are true? (Choose two. Router(config)#username jdone privilege 1 password 7 PASSWORD1 C.0 255. Only southbound APIs allow program control of the network.0. B.255. router(config-router)#default-information originate always Answer: A 341. It enables the inside interface to receive traffic.) A. Only northbound APIs allow program control of the network.0 GigabitEthernet0/1 B.0 0. It enables port address translation. show ip debug nat D. For access security.Which command can you enter to set the default route for all traffic to an interface? A. router(config-router)#default-information originate D. easier way to help you pass any IT exams.0. 242 / 262 .0. tty password B. D. clear ip nat statistics Answer: A 337.Which command can you enter to configure a local username with an encrypted password and EXEC mode user privileges? A. console password F. C.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 GigabitEthernet0/1 C.255.What is the effect of the overload keyword in a static NAT translation configuration? A. so Telnet uses vty for connecting a remote Cisco switch. Answer: A 340.0. It enables the outside interface to forward traffic. username password Answer: B. Router(config)#username jdone privilege 15 password 0 08314D5D1A48 D. show ip nat statistics B.C Explanation: Telnet presents a potential security risk. the vty password and enable password must be configured. B. enable secret password C. debug ip nat C.0. Router(config)#username jdone privilege 15 password 0 PASSWORD1 Answer: A 339. router(config)#ip route 0. It enables the use of a secondary pool of IP addresses when the first pool is depleted.The safer . aux password E. Router(config)#username jdone privilege 1 password 7 08314D5D1A48 B. vty password D.

POST. ✑The computers in the Hosts LAN have been assigned addresses of 192.3 243 / 262 .1 – 192. Southbound InterfacesAlthough APIC-EM only exposes its Northbound Interfaces as an API. 342. switches and wireless controllers (including Wireless Access Points). ✑ Path Trace .254.65. The use of the SNMP and CLI ensures that APIC. PUT.2 ✑host C 192.e. your applications will make network policy decisions.C Explanation: APIC-EM Northbound InterfaceThe APIC-EM Northbound Interface is the only API that you will need to control your network programmatically. ✑ Plug and Play (PnP) . ✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. Both northbound and southbound APIs allow program control of the network. A corporation wants to add security to its network. Future APIC-EM releases will leverage other southbound technology such as NetConf as they become available. programmatic control of your network elements. and hosts..78. host A 192.78. easier way to help you pass any IT exams. This access list can contain no more than three statements that meet these requirements.. Both northbound and southbound API interfaces use a Service Abstraction Layer.168. ✑ Other types of access from host C to the Finance Web Server should be blocked.The safer . ✑All passwords have been temporarily set to “cisco”.168. Only southbound API interfaces use a Service Abstraction Layer. ✑The Core connection uses an IP address of 198. Answer: B. When you use the APIC-EM API. the policy) and the controller figures out how to implement that policy for you.e.eases and accelerates the task of computing end-to-end application flow path.  C.18. 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. Access to the router CLI can be gained by clicking on the appropriate host. The APIC-EM GA release focus’s on the following key customer applications: ✑ Intelligent WAN (IWAN) . which will then be implemented by the APIC-EM Controller through its Southbound Interfaces. and DELETE) with JSON syntax.78.automates the configuration of advanced IWAN features on Cisco 4000 Series Integrated Service Routers. Only northbound API interfaces use a Service Abstraction Layer.1 ✑host B 192.delivers zero-touch deployment of Cisco Enterprise Network routers.209. The requirements are: ✑ Host C should be able to use a web browser (HTTP) to access the Finance Web Server. You have been tasked to create and apply a numbered access list to a single outbound interface. D. it is important that you understand how the Southbound Interface is built.168.EM works with legacy Cisco legacy products. The APIC-EM API is REST based and thus you will discover and control your network using HTTP protocol with HTTP verbs (i. 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. interfaces. The API is function rich and provides you with an easy-to-use.168. E. Thus you tell the network what you want (i. F.78.78. CORRECT TEXT.168. GET. ✑ All hosts in the Core and on local LAN should be able to access the Public Web Server.

146.146.  ✑host D 192.4 The Finance Web Server has been assigned an address of 172.22.17. 244 / 262 .22. easier way to help you pass any IT exams.78.168.18. ✑The Public Web Server in the Server LAN has been assigned an address of 172.The safer .

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

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

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

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

GLBP D.If the primary root bridge experiences a power loss. IPS F.) 249 / 262 . It configures the default VLAN.F90B. auxiliary setup mode Answer: B 352.The enable secret command is used to secure access to which CLI mode? A. switch 0040.E 353. IOX E. switch 00E0. IOS D.C182 B. C.0BC0.The safer . HSRP B. SDM Answer: B.F726. It configures an inactive switch virtual interface. It configures the native VLAN. user EXEC mode D. easier way to help you pass any IT exams. switch 00E0. It configures an active management interface.What are two benefits of private IPv4 IP addresses? (Choose two.90C5 Answer: A 354.6BE3 C. which switch takes over? A. global configuration mode B.  What is the effect of the given configuration? A. VRRP C.3DC6 D. switch 0004.Which two security appliances will you use in a network? (Choose two. ATM B. IDS C. Answer: A 350. B. CARP Answer: A 351. D.9A1A. privileged EXEC mode C.) A.Which protocol is the Cisco proprietary implementation of FHRP? A.

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

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

show ip cache flow C. C. interface ethernet 0/0 F. It provides stability for the OSPF process on RouterB. ip flow ingress D. ip flow egress E. show ip flow export B.Which two commands can you enter to verify that a configured NetFlow data export is operational? (Choose two. Answer: B.) A.0.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. It indicates that RouterB should be elected the DR for the LAN. + If a loopback interface is not defined. IPv6 stateless autoconfiguration 252 / 262 . It specifies that the router ID for RouterB should be 10. D.Which two features can dynamically assign IPv6 addresses? (Choose two.The safer . E. It decreases the metric for routes that are advertised from RouterB.  A. ip flow-export destination Answer: A. -> The loopback interface will be chosen as the router ID of RouterB – 361.B 362.0. It ensures that data will be forwarded by RouterB. the highest IP address of all active router’s physical interfaces will be chosen. B.1. easier way to help you pass any IT exams.) A.

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

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

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

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

The safer .T4.bin D. Router(config)# boot system flash c4500-p-mz. SSH D. Which user-mode password has just been set? A.) A.Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two.Refer to the exhibit. Router(config)# boot system tftp c7300-js-mz. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.Which feature can you implement to reserve bandwidth for VoIP calls across the call path? A. listening 257 / 262 .bin C. RSVP guarantees bandwidth for the call along the entire path for the entire duration of the call.bin B.B 380. Router(config)#boot system rom c7301-advipservicesk9-mz.C 383.122-33. blocking B.bin F.122-23f. Router(config)#boot bootldr bootflash:c4500-jk9s-mz. Answer: A. RSVP Answer: D Explanation: When implemented on all nodes in the path. 381. Auxiliary C.) A.B.Which three commands can you use to set a router boot image? (Choose three. This is the only technique that achieves this level of accuracy. Telnet B. They occur when CRC errors and interference occur on the cable.121-20. Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin E. easier way to help you pass any IT exams.bin Answer: A. PQ B.  E.SB8a. CBWFQ C. round robin D.124-24. Console Answer: A 382.

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

2.0.[1] Thus. show ip dhcp server statistics D. router(config)#ip route 192.0. Leased lines support up to T1 link speeds. E.0. C. An example of an IPv6 address is: 2001:0db8:85a3:0000:0000:8a2e:0370:7334 The hexadecimal digits are case-insensitive. 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 (::).0 255. Leased lines provide highly flexible bandwidth scaling.D 390.255. show ip dhcp binding 10.0 GigabitEthernet0/1 B. The full representation of eight 4-digit groups may be simplified by several techniques. fd15:0db8::7:3:4F:527B E. easier way to help you pass any IT exams.168. router(config)#ip route 192. B.2.0 255.0 GigabitEthernet0/1 D.0. fd15:db8:0::700:3:4F:527B D.Which command can you enter to display duplicate IP addresses that the DHCP server assigns? A.0. each group representing 16 bits (two octets). but IETF recommendations suggest the use of lower case letters. router(config)#ip route 0.) A.0.0 0. fd15:0db8:0000:0000:700:3:400F:527B B.0. show ip dhcp conflict 10. D.0 255. router(config)#ip route 0.255.2. Multiple leased lines can share a router interface.Which two statements about using leased lines for your WAN infrastructure are true? (Choose two.240. fd15::db8::700:3:400F:527B C.0.168.12 B.[1] Thus. the example address can be further simplified: 2001:db8:85a3::8a2e:370:7334 391.In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two.Which command can you enter to route all traffic that is destined for 192. Answer: C.  388.0 GigabitEthernet0/1 Answer: A 389. fd15:db8::700:3:400F:572B Answer: D.E Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.255.0. F.0.0.255.0 GigabitEthernet0/1 C. Leased lines provide inexpensive WAN access.255.0/20 to a specific interface? A.168. The groups are separated by colons (:).) A.0. Leased lines with sufficient bandwidth can avoid latency between endpoints.The safer . show ip dhcp database 10.12 259 / 262 . Leased lines require little installation and maintenance expertise. eliminating parts of the representation. Leading zeroes Leading zeroes in a group may be omitted.12 C.

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

fast switching D.1. So let’s say for example you have a single switch with 5 different VLAN’s and machines on each VLAN.Which type of address is the public IP address of a NAT device? A. inside local E. the default route Answer: A 397. 172. 172. in which case each VLAN would require its own router to get out of that layer two network to a different layer two network. Layer 3 switch D. inside global D.Which feature builds a FIB and an adjacency table to expedite packet forwarding? A.  395. Cisco Express Forwarding B. A Sub-Interface is a logical interface partitioned off from a physical interface. commonly referred to as a Default Gateway for host machines.0/25 C.0/26 B. outside local C.16. outside public 261 / 262 .16.16.What is the correct routing match to reach 172. cut-through Answer: A 399.Which type of device can be replaced by the use of subinterfaces for VLAN routing? A.Which command can you enter to determine whether serial interface 0/2/0 has been configured using HDLC encapsulation? A. Layer 2 bridge B.1. Layer 2 switch C.5/32? A. process switching C. easier way to help you pass any IT exams. 172. A sub-interface allows you to have multiple interface configurations on a single physical interface.The safer . router#show ip interface s0/2/0 D.1. router#\show ip interface brief Answer: C 398. router Answer: D Explanation: The only way to get off a layer two network segment is through a layer three device. 396. outside global B.1.0/24 D. router#show platform B. 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. router#show interfaces Serial 0/2/0 C.

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

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