Cisco 200-120

CCNA Cisco Certified Network Associate CCNA
Version: 25.0

Cisco 200-120 Exam
Topic 1, Operation of IP Data Networks
QUESTION NO: 1
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.

QUESTION NO: 2
Refer to the exhibit.
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2

Cisco 200-120 Exam

Which three statements correctly describe Network Device A? (Choose three.)
A. With a network wide mask of 255.255.255.128, each interface does not require an IP address.
B. With a network wide mask of 255.255.255.128, each interface does require an IP address on a
unique IP subnet.
C. With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to
communicate with each other.
D. With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to
communicate with each other.
E. With a network wide mask of 255.255.254.0, each interface does not require an IP address.
Answer: B,D,E
Explanation:
If Subnet Mask is 255.255.255.128the hosts vary from x.x.x.0 -x.x.x.127 & x.x.x.128- x.x.x.255,so
the IP Addresses of 2 hosts fall in different subnets so each interfaceneeds an IP an address so
thatthey can communicate each other.
If Subnet Mask is 255.255.255.0 the 2 specified hosts fall in different subnets so they need a
Layer 3 device to communicate.
If Subnet Mask is 255.255.254.0 the 2 specified hosts are in same subnetso are in network
address and can be accommodated in same Layer 2 domainand can communicate with each
other directly using the Layer 2 address.

QUESTION NO: 3
Which layer in the OSI reference model is responsible for determining the availability of the

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3

Cisco 200-120 Exam
receiving program and checking to see if enough resources exist for that communication?
A. transport
B. network
C. presentation
D. session
E. application
Answer: E
Explanation:
This question is to examine the OSI reference model.
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.

QUESTION NO: 4
Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
Answer: A,D,E
Explanation:
The idea behind a WAN is to be able to connect two DTE networks together through a DCE
network. The network’s DCE device (includes CSU/DSU) provides clocking to the DTE-connected
interface (the router’s serial interface).

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4

Cisco 200-120 Exam

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 CSU/DSU is used between
two digital lines For more explanation of answer D, in telephony thelocal 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. Therefore a
modem terminates an analog local loop is correct.

QUESTION NO: 5
Refer to the exhibit.

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5

Cisco 200-120 Exam

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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6

internet F. "Pass Any Exam. transport E. application B. session D.Cisco 200-120 Exam QUESTION NO: 6 A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. data link Answer: A Explanation: FTP belongs to Application layer and it is also the highest layer of the OSI model.www." . Any Time. presentation C. What is the highest layer of the protocol stack that the network administrator is using for this operation? A.com 7 .actualtests.

" .com 8 . Any Time.Cisco 200-120 Exam QUESTION NO: 7 Refer to the exhibit. which entry will be in the ARP cache of HostA to support this transmission? "Pass Any Exam.actualtests.www. After HostA pings HostB.

1.Thisinformation (IP and MAC address of the default gateway) is saved in its ARP cache for later use.6. Any Time. 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. Exhibit C D. Exhibit D E.Cisco 200-120 Exam A. QUESTION NO: 8 A network interface port has collision detection and carrier sensing enabled on a shared twisted "Pass Any Exam. Exhibit E F. Exhibit B C. Exhibit A B.actualtests.com 9 .www.168.168. Host A sends a broadcast frame asking the MAC address of 192.1.6." .

CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater or hub). QUESTION NO: 9 A receiving host computes the checksum on a frame and determines that the frame is damaged. transport C. This is a 100 Mb/s switch port." . D. According to this question the frame is damaged and discarded which will happen at the Data Link layer. network D. QUESTION NO: 10 "Pass Any Exam. The frame is then discarded. This is a 10 Mb/s switch port. network topology. session B. and flow control. This is a port on a network interface card in a PC. Answer: C Explanation: Modern Ethernet networks built with switches and full-duplex connections no longer utilize CSMA/CD. physical Answer: D Explanation: The Data Link layer provides the physical transmission of the data and handles error notification. This is an Ethernet port operating at half duplex.www. B.actualtests. This is an Ethernet port operating at full duplex. C. The Data Link layer formats the message into pieces. Any Time. At which OSI layer did this happen? A. data link E.com 10 .Cisco 200-120 Exam pair network. and adds a customized header containing the hardware destination and source address. E. what is known about the network interface port? A. each called a data frame. From this statement. Protocols Data Unit (PDU) on Datalink layer is called frame.

For example. The Network layer (Layer 3) has two key responsibilities. The data link layer adds physical source and destination addresses and an FCS to the segment. D. The transport layer divides a data stream into segments and may add reliability and flow control information. Answer: A. so that the receiving device can reassemble the data on arrival. basic flow control is implemented by acknowledgment by the receiver of the receipt of data. and routes the data appropriately.actualtests. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.Cisco 200-120 Exam Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two. the network layer determines the best path to a particular destination network. B.com 11 .www. E. the sender waits for this acknowledgment before sending the next part. The transport layer also use flow control to maximize the transfer rate while minimizing the requirements to retransmit. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information. First. Each segment is assigned a sequence number. The presentation layer translates bits into voltages for transmission across the physical link. QUESTION NO: 11 Refer to the graphic. "Pass Any Exam. Second.D Explanation: The transport layer segments data into smaller pieces for transport. this layer controls the logical addressing of devices.) A. C." . in TCP. Any Time.

routers can look further into the packet to discover the network for which a packet is destined.com 12 . Unlike the IPX hop count. and remove the MAC header. the router must perform the following steps: 1. Examine the age of the packet. Routers make forwarding decisions based on the packet's network-layer header (such as an IPX header or IP header). The router checks the packet for MAC-layer errors. the router "Pass Any Exam. IP headers contain a Time to Live (TTL) value. Any Time. The router must ensure that the packet has not come too far to be forwarded. the MAC address of the server network interface D. What will be the source MAC address of the frames received by Host A from the server? A.www.actualtests. After receiving the packets. 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. which increments as the packet is forwarded through each router. By default." . Local devices address packets to the router's MAC address in the MAC header. The router then strips off the MAC header and examines the networklayer header to determine what to do with the packet.Cisco 200-120 Exam Host A is communicating with the server. If a packet has a hop count of 15. the router discards the packet. the MAC address of router interface e1 C. IPX headers contain a hop count. 15 hops is the maximum number of hops (or routers) that a packet can cross. 2. These network-layer headers contain source and destination network addresses. For example. the IP TTL value decrements as the IP packet is forwarded through each router. the MAC address of router interface e0 B. Check the incoming packet for corruption. If an IP packet has a TTL value of 1.

C.) A. Finally. The number of broadcast domains would decrease.com 13 . QUESTION NO: 12 Refer to the exhibit. (If you want to read the IP routing tables on a Windows 95/98 workstation. Any Time. What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two. the router must build a new header. Routers maintain a routing table that lists available networks. A router cannot decrement the TTL value to 1 and then forward the packet. After determining which direction to forward the packet.www. type ROUTE PRINT in the DOS box. The number of broadcast domains would increase. E. and the distance to those networks." .actualtests. 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. Build the new MAC header and forward the packet. F. B. The number of collision domains would decrease. The number of collision domains would increase. D.Cisco 200-120 Exam discards the packet. The number of collision domains would remain the same. the router builds a new MAC header for the packet.) 4. Determine the route to the destination. "Pass Any Exam. 3. the direction to the desired network (the outgoing interface number). The number of broadcast domains would remain the same.

you generally have one collision domain to a PC. These days. So. switch or bridge. Any Time. however. broadcasts can traverse collision domains freely. but the client does not know how to reach the DHCP Server. so when a broadcast hits a router (or the perimeter of a VLAN). it doesn't get forwarded.com 14 . Broadcast Domain: Broadcasting sends a message to everyone on the local network (subnet). Broadcast domains are exactly what they imply: they are network segments that allow broadcasts to be sent across them. 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 (sinceEthernetallows only one host to be transmitting at once without there being a traffic jam). Collision Domain: "Pass Any Exam. So the client sends a DHCP Discover packet to EVERY PC in the local subnet (Broadcast)." . a collision domain is a network segment that allows normal network traffic to flow back and forth.Cisco 200-120 Exam Answer: C. With switches. In the old days of hubs. Only one device in the collision domain may transmit at any one time. while routers (and VLANs) break up collision domains and broadcast domains. The Client is asking for a IP Address.www. a broadcast domain can contain multiple collision domains. if a router stands between all these devices.D Explanation: Basically. How to count them? Broadcast Domain: No matter how many hosts or devices are connected together. A collision domain is sometimes referred to as an Ethernet segment. Since switches and bridges allow for broadcast traffic to go unswitched. Also. A Router is used to separate Broadcast-Domains (we could also call them Subnets . since we mostly use switches to connect computers to the network. don't allow broadcasts through by default. The simple way to look at it is this way: switches break up collision domains. you break up collision domains by switching packets bound for other collision domains. and the other devices in the domain listen to the network in order to avoid data collisions. An example for Broadcasting would be DHCP Request from a Client PC.actualtests. but a collision domain can never have more than one broadcast domain associated with it. hub. this meant you had a lot of collisions. Routers. we have TWO broadcast domains. But only the DHCP Server will answer to the Request. 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. all these devices are in ONE Broadcast domain (assuming a single VLAN).or call them VLANs). if they are connected with a repeater.

QUESTION NO: 13 Which three statements accurately describe Layer 2 Ethernet switches? (Choose three. In a properly functioning network with redundant switched paths. F. Each network device gets the full bandwidth of the segment and does not have to share the segment with other devices. All other switches in that broadcast domain will have only one root port." . If this switch is connected to another switch or a router. B. Any Time.com 15 . we have one collision domain more. E. Note: Microsegmentation decreases the number of collisions but it increases the number of collision domains. D. C.actualtests. Microsegmentation decreases the number of collisions on the network. application B. it uses ARP to resolve the address. this is ONE Collision Domain. Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information. hub) will reside in ONE single collision domain.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. internet "Pass Any Exam. Spanning Tree Protocol allows switches to automatically share VLAN information. Microsegmentation reduces and can even eliminate collisions because each segment is its own collision domain ->. If a switch receives a frame for an unknown destination. Answer: B. QUESTION NO: 14 Where does routing occur within the DoD TCP/IP reference model? A. Each device that is connected to a Layer 1 device (repeater. Establishing VLANs increases the number of broadcast domains.Cisco 200-120 Exam Each connection from a single PC to a Layer 2 switch is ONE Collision domain. If 5 Devices are connected to a Hub.www. if 5 PCs are connected with separate cables to a switch. each switched segment will contain one root bridge with all its ports in the forwarding state.D. For example. we have 5 Collision domains.) A.

actualtests.www." . transport Answer: B Explanation: The picture below shows the comparison between TCP/IP model & OSI model.Cisco 200-120 Exam C.com 16 . network D. QUESTION NO: 15 Refer to exhibit: "Pass Any Exam. Any Time. Notice that the Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for routing decision.

the MAC address of the router's E0 interface Answer: C.) A.Cisco 200-120 Exam Which two destination addresses will be used by Host A to send data to Host C? (Choose two. to allow communication with devices on a different network "Pass Any Exam.) A. it replaces the source MAC address with itsown E1 interface’s MAC address and replaces the destination MAC address with Host C’s MAC address before sending to Host C. Any Time. the IP address of the router's E0 interface F." .www. the source and destination IP addresses are not changed.F Explanation: While transferring data through many different networks.com 17 . When the router receives this data. QUESTION NO: 16 For what two purposes does the Ethernet protocol use physical addresses? (Choose two. Only the source and destination MAC addresses are changed.actualtests. the IP address of Switch 1 B. the MAC address of Host C E. to uniquely identify devices at Layer 2 B. the IP address of Host C D. So in this case Host A will use the IP address of Host C and the MAC address of E0 interface to send data. the MAC address of Switch 1 C.

All devices need a physical address to identify itself.www.actualtests. On Ethernet. because it has the lowest MAC address B. to differentiate a Layer 2 frame from a Layer 3 packet D. to allow detection of a remote device when its physical address is unknown Answer: A. each frame has the same priority to transmit by default ->. Switch D. Any Time. because it has the lowest priority F. to allow communication between different devices on the same network F." . because it has the highest priority "Pass Any Exam.com 18 .E Explanation: Physical addresses or MAC addresses are used to identify devices at layer 2. Switch A. they cannot communicate ->. Switch A. Based on the information given. Layer 2 frame and Layer 3 packet can be recognized via headers. Switch B. Switch C. because it has the highest MAC address D. to establish a priority system to determine which device gets to transmit first E. Layer 3 packet also contains physical address ->. QUESTION NO: 17 Refer to the exhibit. Switch C. If not. To communicate on different network we have to use Layer 3 addresses (IP addresses) -> B is not correct. MAC addresses are only used to communicate on the same network. because it is the most centrally located switch E. which switch will be elected root bridge and why? A.Cisco 200-120 Exam C. because it is the most centrally located switch C.

QUESTION NO: 18 Which of the following statements describe the network shown in the graphic? (Choose two. The switch having the lowest prioritywill win the election process. E. B. There are four collision domains in the network.If Priority Value is the same then it checks the MAC Address. Answer: A. D.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 "Pass Any Exam. There are five collision domains in the network. Any Time. F. switch C has the lowest MAC Address so it becomes the root bridge.www. first check the priority value. C.actualtests. There are four broadcast domains in the network.Cisco 200-120 Exam Answer: E Explanation: To elect the root bridge in the LAN." . There are seven collision domains in the network. the switch having the lowest MAC Address will become the root bridge. There are six broadcast domains in the network.) A. There are two broadcast domains in the network.com 19 .In this case.

actualtests. After the message is sent. If more than one device transmits simultaneously. the signals collide and cannot reach the destination. B. QUESTION NO: 19 In an Ethernet network. QUESTION NO: 20 A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. If a device detects another device is sending." .D Explanation: Ethernet network is a shared environment so all devices have the right to access to the medium. the device returns to its default listening mode. it will wait for a specified amount of time before attempting to transmit.www. when the server grants access Answer: C. using the fewest physical interfaces and without decreasing network performance? A. How can you accomplish this task. Use a hub to connect the four VLANS with a Fast Ethernet interface on the router.) A. when the medium is idle E.Cisco 200-120 Exam broadcast domain ->. While this transmission is occurring. "Pass Any Exam. when they detect no other devices are sending D. Any Time. C. Add two more Fast Ethernet interfaces. the device continues to listen for traffic or collisions on the LAN. under what two scenarios can devices transmit? (Choose two. When there is no traffic detected. when there is a carrier C.com 20 . Add a second router to handle the VLAN traffic. when they receive a special token B. a device will transmit its message. 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) ->.

F. Any Time.com 21 . Router C will send ICMP packets to inform Host 1 that Host 2 cannot be reached.) A. Implement a router-on-a-stick configuration. Router C will use ICMP to inform Router B that Host 2 cannot be reached.D Explanation: Host 1 is trying to communicate with Host 2." . QUESTION NO: 21 Host 1 is trying to communicate with Host 2. Router C will send a Router Selection message type. Router C will send a Destination Unreachable message type. B. E.Cisco 200-120 Exam D. "Pass Any Exam. Answer: A. Router C will use ICMP to inform Host 1. and Router B that Host 2 cannot be reached. Router C will send a Source Quench message type. C.www. Answer: D Explanation: A router on a stick allows you to use sub-interfaces to create multiple logical networks on a single physical interface. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached. Router A. The e0 interface on Router C is down.actualtests. D. Which of the following are true? (Choose two. The e0 interface on Router C is down.

Cisco 200-120 Exam QUESTION NO: 22 What is the difference between a CSU/DSU and a modem? A. A CSU/DSU converts analog signals from a router to a leased line. a modem converts digital signals from a router to a leased line.www. (Not all options are used. a modem converts digital signals from a router to a phone line. Answer: D Explanation: CSU/DSU is used to convert digital signals from a router to a network circuit such as a T1. A CSU/DSU converts digital signals from a router to a leased line. a modem converts analog signals from a router to a leased line. Any Time.actualtests. a modem converts analog signals from a router to a phone line. B." . A CSU/DSU converts analog signals from a router to a phone line.) Answer: "Pass Any Exam. while a modem is used to convert digital signals over a regular POTS line. C.com 22 . QUESTION NO: 23 DRAG DROP Drag the cable type on the left to the purpose for which it is best suited on the right. A CSU/DSU converts digital signals from a router to a phone line. D.

www. switch to hub.) "Pass Any Exam. (Not all options are used.actualtests. router to router." . Any Time. host to host…) QUESTION NO: 24 DRAG DROP Match the terms on the left with the appropriate OSI layer on the right. hub to host. switch to host. Host. Server Group 2:Hub.To connecttwo serial interfacesof 2 routers we useserial cable – To specify when we use crossover cable or straight-through cable. we should remember: Group 1:Router.Cisco 200-120 Exam Explanation: To remember which type of cable you should use. hub to server… and we use crossover cable to connect switch to switch. follow these tips: . Switch One device in group 1 + One device in group 2: usestraight-through cable Two devices in the same group: usecrossover cable For example: we use straight-through cable to connect switch to router.com 23 .

actualtests.Cisco 200-120 Exam Answer: Explanation: "Pass Any Exam. Any Time.www." .com 24 .

www. Drag the correct frame and packet addresses to their place in the table. Any Time.com 25 . Answer: Explanation: "Pass Any Exam. PC_1 is exchanging packets with the FTP server.actualtests." . Consider the packets as they leave RouterB interface Fa0/1 towards RouterA.Cisco 200-120 Exam QUESTION NO: 25 DRAG DROP Refer to the exhibit.

21.16." .16. PC_1 is sending packets to the FTP server.34. Consider the packets as they leave RouterA interface Fa0/0 towards RouterB.com 26 . Drag the correct frame and packet address to their place in the table.Cisco 200-120 Exam Source Mac AddressDestination Mac AddressSource IP addressDestination MAC address MAC 0000.9999IP 172.3333MAC 0000.250IP 172.www. Any Time.7 QUESTION NO: 26 DRAG DROP Refer to the exhibit. Answer: "Pass Any Exam.actualtests.0c89.0c89.

Cisco 200-120 Exam Explanation: QUESTION NO: 27 DRAG DROP Refer to the exhibit.com 27 . Any Time. Answer: Explanation: "Pass Any Exam.actualtests. Complete this network diagram by dragging the correct device name or description to the correct location.www." . Not all the names or descriptions will be used.

"Pass Any Exam. LAN Switching Technologies QUESTION NO: 28 Refer to the exhibit." .Cisco 200-120 Exam Topic 2.com 28 . Any Time.www.actualtests.

Cisco 200-120 Exam Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802. An IP address must be configured for the port. B.1Q-compliant trunk to another switch.com 29 . not an access port. "Pass Any Exam. VLANs have not been created yet. The port is currently configured for access mode." . To make a trunk link the port should configured as a trunk port.actualtests. Answer: C Explanation: According to the output shown the switchport (layer 2 Switching) is enabled and the port is in access mode. The “no shutdown” command has not been entered for the port. even though the proper cabling has been attached? A. Any Time. The correct encapsulation type has not been configured. E. Based on the output shown. D. C. what is the reason the trunk does not form.www.

Cisco 200-120 Exam by using the following command: (Config-if)#switchport mode trunk.dat. forwarding and disabled).com 30 . listening C. The command is accepted and the respective VLAN is added to vlan.1D Spanning Tree Protocol (STP). 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. The command is rejected. C. The port turns amber." . learning. "Pass Any Exam. D. What happens if you set the switchport access vlan 3 command in interface configuration mode? A. QUESTION NO: 30 VLAN 3 is not yet configured on your switch. listening. But PVST+ has only 3 port states (discarding. learning B. So discarding is a new port state in PVST+. Any Time. forwarding Answer: C Explanation: PVST+ is based on IEEE802.actualtests. B. The command is accepted and you must configure the VLAN manually.www. discarding D. QUESTION NO: 29 Which port state is introduced by Rapid-PVST? A. learning and forwarding) while STP has 5 port states (blocking.

Any Time. an approach to wireless LAN communication D. a network administrator can define a VLAN topology to span multiple physical devices.com 31 . a trunk link is created to accomplish this VLAN identification.www. VTP revision number D. The IEEE 802. lowest port MAC address C. QUESTION NO: 32 In a switched environment." . path cost B.Cisco 200-120 Exam QUESTION NO: 31 What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology? A.1Q.actualtests. An 802. 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. the port with lowest cost to the root bridge will become root port (on non-root switch). ISL and IEEE 802.1Q standard describe? A. the process for root bridge selection E. Cisco switches support IEEE 802. On Cisco switches. and servers. To accomplish this. In particular. one switch must send frames to another switch and indicate which VLAN a particular frame belongs to.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame as it leaves a "Pass Any Exam. highest port priority number E. routers. what does the IEEE 802.1Q protocol interconnects VLANs between multiple switches. a method of VLAN trunking C.1Q are different methods of putting a VLAN identifier in a Layer 2 frame. VLAN pruning Answer: B Explanation: A broadcast domain must sometimes exist on more than one switch in the network. With 802. the operation of VTP B.1Q for FastEthernet and Gigabit Ethernet interfaces.

B.Cisco 200-120 Exam trunk port. C. Any Time.actualtests. Switch-1 will send an ARP request out all its ports except the port from which the data originated.com 32 .d056. 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. QUESTION NO: 33 Refer to the exhibit." . 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. Switch-1 will forward the data to its default gateway. D. Switches work as follows: "Pass Any Exam. Answer: B Explanation: This question tests the operating principles of the Layer 2 switch.www. Switch-1 will flood the data out all of its ports except the port from which the data originated.efa4. Switch-1 needs to send data to a host with a MAC address of 00b0. Check the MAC address table of Switch1 and find that the MAC address of the host does not exist in the table.

1q D.1Q tagging can receive both tagged and untagged traffic. It blocks VLAN 999 traffic from passing on the trunk.Cisco 200-120 Exam In output there is no MAC address of give host so switch floods to all ports except the source port.1d B. 802. D. 802.D Explanation: This question is to examine the STP protocol. C. SAP Answer: A. 802.com 33 . By default. B. VTP C.1q is a Frame Relay protocol which belongs to VLAN. QUESTION NO: 35 Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two. "Pass Any Exam.1d) is used to prevent Layer 2 loops. STP E.actualtests.www. the switch forwards untagged traffic in the native VLAN configured for the port. 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. STP (802. QUESTION NO: 34 What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch? A. The native VLAN is VLAN 1 by default. It designates VLAN 999 for untagged traffic.) A. It creates a VLAN 999 interface. Any Time.

0000.com 34 . Each bridge has a configurable priority number and a MAC Address.1111) and B (MAC=0200. 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..0200. 32769: 11-22-33-44-55-65 D.www.1111). The Bridge priority default is 32768 and can only be configured in multiples of 4096(Spanning tree uses the 12 bits extended system ID). QUESTION NO: 37 A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic. 32768: 22-33-44-55-66-77 C. for example.0000.0000. the priority is compared first. More collision domains will be created. More bandwidth will be required than was needed previously. D. the bridge ID contains both numbers combined together . C. as if looking at a real number anything less than 32768.Bridge priority + MAC (32768.will become the target of being the root. QUESTION NO: 36 Which switch would STP choose to become the root bridge in the selection process? A. B.2222) both have a priority of 32768 then switch A will be selected as the root bridge. To compare two bridge IDs. Any Time. If two bridges have equal priority then the MAC addresses are compared.. An additional broadcast domain will be created. if switches A (MAC=0200. 32768: 11-22-33-44-55-66 B. 32768: 11-22-33-44-55-66 would be the bridge because it has a lower priority and MAC address. "Pass Any Exam. What is the effect of adding switch ports to a new VLAN on the switch? A." .Cisco 200-120 Exam SAP is a concept of the OSI model. In this case. IP address utilization will be more efficient.actualtests.

F. Port-based VLANs increase switch-port use efficiency.com 35 . and host reconfigurations is now a thing of the past. because the VLANs all belong to the same broadcast domain. A higher level of network security can be reached by separating sensitive data traffic from other network traffic." . A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure. Answer: A. 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. 2.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. Broadcast storms can be mitigated by increasing the number of broadcast domains. it helps reduce administrative costs when users are geographically dispersed. C. each port is a separate collision domain. Any Time. because network configuration can be made at ease when need arises. thanks to 802. E. Broadcast storms can be mitigated by decreasing the number of broadcast domains.C. Inexpensive The popularity of VLANs is due to the fact that changes. G.Cisco 200-120 Exam Answer: D Explanation: Each VLAN creates its own broadcast domain. and moves can be attained simply by making necessary configurations on the VLAN port. D. B. VLANs make it easier for IT staff to configure new logical groups. re-addressing.Since this is a full duplex switch. Time-consuming. thereby encourage better "Pass Any Exam.actualtests.) A. A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure. adds. 1. thus increasing their size.www. They provide numerousnetworkingbenefits and have become popular in the market. thus reducing their size. QUESTION NO: 38 What are three benefits of implementing VLANs? (Choose three.1Q trunks. For instance.

www. 802. 4.1Q 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. 3. They are popularly used to reduce broadcast traffic. They increase the size of collision domains." . "Pass Any Exam. 802.1w C. QUESTION NO: 40 Which of the following are benefits of VLANs? (Choose three. 802. Segment multiple networks VLANs are typically used to achieve multiple purposes. Better administration VLANs facilitate grouping of multiple geographical stations. Any Time. the network does not have to be configured. QUESTION NO: 39 Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet? A. 802. On the other hand. When VLAN users move to another physical location. Enhances performance A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure. smaller broadcast domain. 6.1D D. 5.Cisco 200-120 Exam control of multicast traffic as well as broadcast domains.3ad B.1Q) to be used. Improves network security High-security can be positioned in different VLAN groups to ensure that non-members cannot receive their broadcasts.actualtests. a router is added and workgroups relocated into centralized locations.com 36 .) A. B. They allow logical grouping of users by function.Each VLAN creates a separate.

E. Any Time. They simplify switch administration.not by location or geography ->. F. It is also a big advantage of VLAN ->. VLANs help minimize the incorrect configuration of VLANs so it enhances the security ofthe network ->. D. A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA.com 37 . QUESTION NO: 41 Refer to the exhibit.actualtests. They increase the number of broadcast domains while decreasing the size of the broadcast domains. They increase the size of broadcast domains while decreasing the number of collision domains.C.www. Answer: B. They can enhance network security. VLANs are useful but they are more complex and need more administration ->.Cisco 200-120 Exam C. VLANs allow to group users by function. VLAN increases the size of broadcast domains but does not decrease the number of collision domains ->. Which set of commands is required to "Pass Any Exam.E Explanation: When using VLAN the number and size of collision domains remain the same ->." . VLANs increase the number of broadcast domains while decreasing the size of the broadcast domains which increase the utilization of the links.

0 SwitchB(config-if)# no shutdown E.255.168. not to forward traffic sent by devices connected to the switch.168.8.168. you must configure at least one default gateway.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.252 255.255.255.0 SwitchB(config-if)# no shutdown C. SwitchB(config)# ip default-gateway 192.168. Traditionally.255.8.www. we often use VLAN 1 as the management VLAN (but in fact it is not secure).255. SwitchB(config)# ip route 192.255.255. SwitchB(config)# ip default-network 192. forwarding E.8." . discarding B.255.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.0 SwitchB(config-if)# no shutdown Answer: C Explanation: To remote access to SwitchB.252 255.254 255. In the exhibit.Cisco 200-120 Exam accomplish this task? A.255.255.168.0 SwitchB(config-if)# ip default-gateway 192.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.com 38 .168. This default gateway is used to forward traffic originating from the switch only.255. QUESTION NO: 42 Which two states are the port states when RSTP has converged? (Choose two. we can recognize that the Management Workstation is in a different subnet from the SwitchB.8.168. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.252 255.252 255.168. Any Time. For intersubnetwork communication to occur. learning D. disabled "Pass Any Exam.168.8.) A.0 SwitchB(config-if)# no shutdown D. it must have a management IP address on a VLAN on that switch.254 255.8.252 255.8. listening C.255.255.8.0 SwitchB(config-if)# no shutdown B. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.actualtests.255.8.

blocking. STP (802.1w discarding state.www.1w) Port State Is Port Included in Active Topology? Is Port Learning MAC Addresses? Disabled Discarding No No Blocking Discarding No No Listening Discarding Yes No Learning Learning Yes Yes Forwarding Forwarding Yes Yes Reference: http://www.Cisco 200-120 Exam Answer: A. Any Time.1D) Port State RSTP (802.com 39 .shtml #states QUESTION NO: 43 "Pass Any Exam.actualtests.1D disabled. and listening states are merged into a unique 802.D Explanation: There are only three port states left in RSTP that correspond to the three possible operational states.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa. The 802.cisco." .

" . show interface vlan E.com 40 .Cisco 200-120 Exam Which two commands can be used to verify a trunk link configuration status on a given Cisco switch interface? (Choose two.actualtests.1q trunking 1 Fa0/22 auto n-802. Any Time.) A. show interface switchport Answer: A. show interface interface C.1q trunking 1 Fa0/20 auto n-802.E Explanation: Example output from these two commands: SW3#show interface trunk Port Mode Encapsulation Status Native vlan Fa0/19 auto n-802.1q trunking 1 Fa0/21 auto n-802. show interface trunk 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.www. On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none QUESTION NO: 44 Which command enables RSTP on a switch? "Pass Any Exam. show ip interface brief D.

1w protocol is an IEEE open implementation. spanning-tree mode mst Answer: B Explanation: Rapid Spanning Tree Protocol (RSTP) is an enhancement of the original STP 802." . that includes the benefits of its Per-VLAN spanning tree protocols.com 41 . spanning-tree mode rapid-pvst C.www. called Rapid-PVST+. Any Time. The RSTP 802.1D protocol. spanning-tree backbonefast D.actualtests.Cisco 200-120 Exam A. To activate the Rapid-PVST+ protocol: switch(config)#spanning-tree mode rapid-pvst QUESTION NO: 45 Refer to the exhibit. "Pass Any Exam. spanning-tree uplinkfast B. Cisco has its own proprietary implementation of RSTP.

Cisco 200-120 Exam All switch ports are assigned to the correct VLANs. The link between the switches is configured in the wrong VLAN. PPP Answer: C Explanation: "Pass Any Exam. Answer: C Explanation: In order to pass traffic from VLANs on different switches." . the connections between the switches must be configured as trunk ports.actualtests.com 42 . D. B. Switch IP addresses must be configured in order for traffic to be forwarded between the switches. ATM B. Any Time. Based on the output shown.www. The access link needs to be configured in multiple VLANs. but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Which WAN protocol is being used? A. QUESTION NO: 46 Refer to the exhibit. VTP is not configured to carry VLAN information between the switches. E. what is the most likely problem? A. The link between the switches needs to be configured as a trunk. HDLC C. Frame Relay D. C.

B. Answer: C Explanation: Since the port is in the blocked status. This switch has a lower bridge ID for VLAN 2 than the elected designated switch. Given the output shown from this Cisco Catalyst 2950.www. This switch is running RSTP while the elected designated switch is running 802.com 43 . This switch interface has a higher path cost to the root bridge than another in the topology. This switch has more than one interface connected to the root network segment in VLAN 2. According to the information provided in the exhibit. C.1d Spanning Tree. “LMI enq sent…” QUESTION NO: 47 Refer to the exhibit. what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2? A. we can know that the data link protocol used in this network is the Frame Relay protocol. Any Time. QUESTION NO: 48 Why will a switch never learn a broadcast address? "Pass Any Exam. we must assume that there is a shorter path to the root bridge elsewhere." .Cisco 200-120 Exam This question is to examine the show int command.actualtests. D.

B. E. D. Broadcast frames are never sent to switches." .Cisco 200-120 Exam A. Answer: C Explanation: Switches dynamically learn MAC addresses based on the source MAC addresses that it sees. Broadcasts only use network layer addressing.www. It has more than one interface that is connected to the root network segment. D. C. It has a higher bridge ID than the elected root bridge. it will never learn the broadcast address. B. A broadcast frame is never forwarded by a switch. It is running RSTP while the elected root bridge is running 802. Any Time.actualtests. It has a higher MAC address than the elected root bridge.1d spanning tree. A broadcast address will never be the source address of a frame. C. and since a broadcast is never the source.com 44 . QUESTION NO: 49 Refer to the exhibit. Broadcast addresses use an incorrect format for the switching table. Why has this switch not been elected the root bridge for VLAN1? A. Answer: D Explanation: "Pass Any Exam.

most network engineers prefer to use 802.D Explanation: Cisco switches can use two different encapsulation types for trunks. Any Time. 1 through 1002 D.Generally. and removed on a Cisco switch? A.www.1q C. IGP D. which is higher than the roots priority of 20481. VTP B." . 2 through 1005 Answer: B Explanation: Explanation VLAN 1 is the default VLAN on Cisco switch. 802.Cisco 200-120 Exam The root bridge is determined by the lowest bridge ID. QUESTION NO: 50 Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.) A. which VLAN range can be added. VLANs 1002-1005 are default VLANs for FDDI & Token Ring and they can’t be deleted or used for "Pass Any Exam.com 45 . 802. modified. QUESTION NO: 51 Assuming the default switch configuration. the industry standard 802.1qor the Cisco proprietary ISL. 2 through 1001 C. ISL E. 1 through 1001 B. It always exists and cannot be added. modified or removed.3u Answer: B. and this switch has a bridge ID priority of 32768.1q since it is standards based and will interoperate with other vendors.actualtests.

www. D. QUESTION NO: 52 Which statement about VLAN operation on Cisco Catalyst switches is true? A. Answer: B Explanation: Each VLAN resides in its own broadcast domain. When a packet is received from an 802. B. so incoming frames with unknown destinations are only transmitted to ports that reside in the same VLAN as the incoming frame. the VLAN ID can be determined from the source MAC address and the MAC address table." .Cisco 200-120 Exam Ethernet.actualtests.1Q trunk. Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.com 46 . Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN. Ports between switches should be configured in access mode so that VLANs can span across the ports. "Pass Any Exam. C. Any Time.

1. Switch B .www. Select the root port on the non-root bridge. The DP on the link between SwitchA and SwitchC is SwitchA'Fa0/1. because it has the smallest MAC address. Next.C. 3. then compare the BID.actualtests. if the costs happen to be the same. 2. still the smallest will be selected. which can be accomplished by comparing the bridge ID.Fa0/0 D. Switch C . select the root bridge.Fa0/0 F.Fa0/0 B. "Pass Any Exam.com 47 . Each link has a DP. Switch A .Cisco 200-120 Exam QUESTION NO: 53 Refer to the topology shown in the exhibit. Switch C . The three switches in the figure all have the default priority. First. The smallest will be selected as the root port. Switch A . we can find DP on each link.Fa0/1 E. Which three ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three. compare the path cost. it is easy to find that SwitchB is the root bridge.) A. select the Designated Port. which can be completed through comparing root path cost.Fa0/1 Answer: B. the smallest will be selected.D Explanation: This question is to check the spanning tree election problem. Based on the exhibit above. Switch B . Bridge-id= bridge priority + MAC address. so we should compare the MAC address. Any Time.Fa0/1 C. First." .

SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk C. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1 D. B.com 48 .Cisco 200-120 Exam QUESTION NO: 54 Refer to the exhibit. 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 "Pass Any Exam. The ports only need to be connected by a crossover cable.www.actualtests." . Any Time. How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be configured to allow connectivity between all devices? A.

What causes this behavior? A.www. Any Time. the individual VLANs should not be listed over that trunk interface. the connection between the switches must be a trunk. allowing only VLAN 2 on the destination "Pass Any Exam. A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2.Cisco 200-120 Exam Explanation: IN order for multiple VLANs to cross switches. trunk mode mismatches B.The “switchport mode trunk” command is all that is needed.actualtests.com 49 . QUESTION NO: 55 Refer to the exhibit." .

Cisco 200-120 Exam C. native VLAN mismatches D. RSTP is typically able to respond less than 10 seconds of a physical link failure.B. the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2. RSTP also uses the STP proposal-agreement sequence. learning.actualtests. Answer: A. or forwarding. the IEEE with document 802. RSTP expands the STP port roles by adding the alternate and backup roles. RSTP uses the same timer-based process as STP on point-to-point links. in 2001." . The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. While STP can take 30 to 50 seconds to transit from a blocking state to a forwarding state.www. B. The backup port applies only when a single switch has two links to the same segment "Pass Any Exam. discarding. To overcome this problem.com 50 . RSTP significantly reduces topology reconverging time after a link failure. * Backup port– A backup/redundant path to a segment where another bridge port already connects. This path is different than using the root port.1w introduced an evolution of the Spanning Tree Protocol: Rapid Spanning Tree Protocol (RSTP). VLANs that do not correspond to a unique IP subnet Answer: C Explanation: Untagged frames are encapsulated with the native VLAN. 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 Explanation: One big disadvantage of STP is the low convergence which is very important in switched network. F. RSTP works by adding an alternative port and a backup port compared to STP. D. QUESTION NO: 56 Which three statements about RSTP are true? (Choose three. C. RSTP port states are blocking. E. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge.) A. Any Time. which significantly reduces the convergence time after a topology change occurs in the network. RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.In this case.

the frame is broadcast on all "Pass Any Exam. physical B. network D. To have two links to the same collision domain. QUESTION NO: 58 What does a Layer 2 switch use to decide where to forward a received frame? A. data link C. transport Answer: B Explanation: RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data Units (BPDUs) between switches.www. * Disabled port– Not strictly part of STP. the switch must be attached to a hub. source IP address C. destination IP address E. 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 operatesat Layer 2 – Data Link layer ->.com 51 .actualtests." . the switch looks at the destination hardware address and finds the interface ifit is in its MAC address table. QUESTION NO: 57 At which layer of the OSI model is RSTP used to prevent loops? A. Any Time.Cisco 200-120 Exam (collision domain).If the address is unknown. destination MAC address Answer: F Explanation: When a frame is received. source switch port D. destination port address F. a network administrator can manually disable a port. source MAC address B.

Fa0/11 is the root port so we can confirm this switch is not the root bridge ->. VLAN 20 is running the Per VLAN Spanning Tree Protocol. not of the root bridge. B.actualtests. D.1580 is the MAC address of this switch.596d.596d. 0017.2a00 ->. Answer: D Explanation: Only non-root bridge can have root port. because not all of the interface roles are designated.1580. Which statement is true? A. not PVST ->. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20. "Pass Any Exam.596d. All of the interface roles of the root bridge are designated. Any Time.com 52 . QUESTION NO: 59 Refer to the exhibit. SwitchA has one Root port and 1 Alternative port so it is not the root bridge. C. SwitchA is not the root bridge. The MAC address of the root bridge is 0017." .www. The MAC address of the root bridge is 0017. From the output we learn this switch is running Rapid STP.Cisco 200-120 Exam interfaces except the one it was received on.

High-security users can be grouped into a VLAN.com 53 . allows switches to route traffic between subinterfaces E. By containing traffic originating on a particular LAN only to other LANs in the same VLAN. and no users outside that VLAN can communicate with them. added security B. tracert address C. ping address B. 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. or applications rather than on a physical or geographical basis. possible on the same physical segment.) A. arp address "Pass Any Exam. QUESTION NO: 61 Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN? A.actualtests. contains collisions Answer: A. project teams. traceroute address D. provides segmentation D.C Explanation: AVLAN is a switched network that is logically segmented on an organizational basis.www. Any Time.Cisco 200-120 Exam QUESTION NO: 60 Which two benefits are provided by creating VLANs? (Choose two. Security: VLANs also improve security by isolating groups." . switched virtual networks avoid wasting bandwidth. 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. by functions. dedicated bandwidth C.

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. split horizon D.Cisco 200-120 Exam Answer: A Explanation: ICMP pings are used to verify connectivity between two IP hosts. and then removes "Pass Any Exam.1D IEEE algorithm by exchanging BPDU messages with other switches to detect loops. hold down timers B.actualtests. STP F. Any Time. routing loops.com 54 .www.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. routing loops. Spanning-Tree Protocol implements the 802. VTP E. switching loops. switching loops." . QUESTION NO: 62 Based on the network shown in the graphic Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem? A. routing loops. switching loops.

for any trunk to be formed. QUESTION NO: 63 Refer to the exhibit. Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.Also. Router1 and Switch2 should be connected via a crossover cable. Host E and host F use the same IP gateway address.com 55 .actualtests. 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. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.) A. one for each VLAN. B. D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces. both ends of the trunk must agree on the "Pass Any Exam. Answer: D. This algorithm guarantees that there is one and only one active path between two network devices. F.www. Any Time.Cisco 200-120 Exam the loop by shutting down selected bridge interfaces." . E. subinterfaces must be used.This is known as the router on a stick configuration. C.F Explanation: In order for multiple VLANs to connect to a single physical interface on a Cisco router. Router1 will not play a role in communications between host A and host D.

actualtests.1Q is a standardized relay method that inserts 4 bytes field into the original Ethernet frame and re-calculate the FCS.www. Non-marked frame carries no VLAN identification information. It is a trunking protocol capable of carrying untagged frames. "Pass Any Exam. It includes an 8-bit field which specifies the priority of a frame. 802.) A. Any Time. or Virtual Bridged Local Area Networks protocol. mainly stipulates the realization of the VLAN.1q or ISL. C. QUESTION NO: 65 Refer to the exhibit.3 frame header. and thus requires that the FCS be recomputed. It modifies the 802.1Q protocol? (Choose two. B.Cisco 200-120 Exam encapsulation type. E.1Q frame relay supports two types of frame: marked and non-marked. D." .com 56 .E Explanation: 802. 802.1Q protocol. It is a Layer 2 messaging protocol which maintains VLAN configurations across networks. QUESTION NO: 64 Which two of these are characteristics of the 802. It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes. so each one must be configured for 802. Answer: B.

as well as being configured to run RSTP. SwitchA. Fa0/1. SwitchD. designated E.com 57 . Because SwitchC is the root bridge so the 2 ports nearest SwitchC on SwitchA (Fa0/1) and SwitchD (Gi0/2) will be root ports. SwitchB. SwitchC. In general. 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. No other configuration changes have been made. Fa0/2.www. Below are the cost values you should memorize: "Pass Any Exam. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.actualtests. SwitchA. The higher the bandwidth on a link. root F. Fa0/2.B. Gi0/2. Gi0/1. Gi0/2. root Answer: A. designated B. SwitchB. “cost” is calculated based on bandwidth of the link. the lower the value of its cost. 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.F Explanation: The question says “no other configuration changes have been made” so we can understand these switches have the same bridge priority.Cisco 200-120 Exam Each of these four switches has been configured with a hostname." . Any Time.) A. root C. root D.

The receiving switch willadd its local port cost value to the costin the BPDU. Now let’s have a look at the topology again SwitchC advertises its cost to the root bridge with a value of 0.actualtests. This can be calculated from the “cost to the root bridge” of each switch becausea switch always advertises its cost to the root bridgein its BPDU.Cisco 200-120 Exam 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.com 58 . Any Time. 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.www. Switch D adds 4 (the cost value of "Pass Any Exam." .

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: + DP: Designated Port (forwarding state) + RP: Root Port (forwarding state) + AP: Alternative Port (blocking state) QUESTION NO: 66 Refer to the exhibit. 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. "Pass Any Exam.com 59 . Any Time.Cisco 200-120 Exam 1Gbps link) and advertises this value (4) to SwitchB. SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8." .actualtests.www. Now our last task is to identify the port roles of the ports between SwitchA & SwitchB.

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. "Pass Any Exam. D. What is the issue? A. However.www. The switch interfaces need the appropriate IP addresses assigned." . Any Time. The administrator's attempt to telnet to the switch from host B fails. Host B and the switch need to be in the same subnet. The switch interface connected to the router is down. Host B needs to be assigned an IP address in VLAN 1.Cisco 200-120 Exam The network administrator normally establishes a Telnet session with the switch from host A. host A is unavailable. Since VLAN1 interface is already configure on switch Host A was able to telnet switch. C. E. The switch needs an appropriate default gateway assigned. Answer: D Explanation: Ping was successful form host B to other hosts because of intervlan routing configured on router. QUESTION NO: 67 Refer to the exhibit.com 60 . B. but pings to the other two hosts are successful.actualtests.

Cisco 200-120 Exam

Which switch provides the spanning-tree designated port role for the network segment that
services the printers?
A. Switch1
B. Switch2
C. Switch3
D. Switch4
Answer: C
Explanation:
Printers are connected by hubs. Decide the switch that provides the spanning-tree designated port
role between Switch3 and Switch4. They have the same priority 32768. Compare their MAC
addresses. Switch3 with a smaller MAC address will provide a designated port for printers.

QUESTION NO: 68
What is one benefit of PVST+?
A. PVST+ supports Layer 3 load balancing without loops.
B. PVST+ reduces the CPU cycles for all the switches in the network.
C. PVST+ allows the root switch location to be optimized per VLAN.
D. PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.

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61

Cisco 200-120 Exam
Answer: C
Explanation:
The PVST+ provides Layer 2 load-balancing for the VLAN on which it runs. 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. Each instance of PVST+ on a VLAN has a single root
switch. This root switch propagates the spanning-tree information associated with that VLAN to all
other switches in the network. Because each switch has the same information about the network,
this process ensures that the network topology is maintained and optimized per VLAN.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2_55_se
/configuration/guide/swstp.html

QUESTION NO: 69
Which three are valid modes for a switch port used as a VLAN trunk? (Choose three.)
A. transparent
B. auto
C. on
D. desirable
E. blocking
F. forwarding
Answer: B,C,D
Explanation:
These are the different types of trunk modes:

QUESTION NO: 70
Refer to Exhibit:

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62

Cisco 200-120 Exam

How many broadcast domains are shown in the graphic assuming only the default VLAN is
configured on the switches?
A. one
B. two
C. six
D. 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.
For your information, there are 7 collision domains in this exhibit (6 collision domains between
hubs & switches + 1 collision between the two switches).

QUESTION NO: 71
Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)
A. 802.1Q native VLAN frames are untagged by default.
B. 802.1Q trunking ports can also be secure ports.
C. 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D. 802.1Q trunks require full-duplex, point-to-point connectivity.
E. 802.1Q trunks should have native VLANs that are the same at both ends.
Answer: A,C,E
Explanation:

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63

Cisco 200-120 Exam
By default, 802.1Q trunk defined Native VLAN in order to forward unmarked frame. Switches can
forward Layer 2 frame from Native VLAN on unmarked trunks port. Receiver switches will transmit
all unmarked packets to Native VLAN. Native VLAN is the default VLAN configuration of port. Note
for the 802.1Q trunk ports between two devices, the same Native VLAN configuration is required
on both sides of the link. If the Native VLAN in 802.1Q trunk ports on same trunk link is properly
configured, it could lead to layer 2 loops. The 802.1Q trunk link transmits VLAN information
through Ethernet.

QUESTION NO: 72
Refer to the exhibit.

The output that is shown is generated at a switch. Which three statements are true? (Choose
three.)
A. All ports will be in a state of discarding, learning, or forwarding.
B. Thirty VLANs have been configured on this switch.
C. The bridge priority is lower than the default value for spanning tree.
D. All interfaces that are shown are on shared media.
E. All designated ports are in a forwarding state.
F. This switch must be the root bridge for all VLANs on this switch.
Answer: A,C,E
Explanation:
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64

Cisco 200-120 Exam
From the output, we see that all ports are in designated role (forwarding state).
The command “show spanning-tree vlan 30 only shows us information about VLAN 30. We don’t
know how many VLAN exists in this switch ->.
The bridge priority of this switch is 24606 which is lower than the default value bridge priority
32768.
All three interfaces on this switch have the connection type “p2p”, which means Point-to-point
environment – not a shared media.
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.

QUESTION NO: 73
Refer to the exhibit.

At the end of an RSTP election process, which access layer switch port will assume the discarding
role?
A. Switch3, port fa0/1
B. Switch3, port fa0/12
C. Switch4, port fa0/11
D. Switch4, port fa0/2
E. Switch3, port Gi0/1
F. Switch3, port Gi0/2
Answer: C
Explanation:
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65

Cisco 200-120 Exam
In this question, we only care about the Access Layer switches (Switch3 & 4). Switch 3 has a
lower bridge ID than Switch 4 (because the MAC of Switch3 is smaller than that of Switch4) so
both ports of Switch3 will be in forwarding state. The alternative port will surely belong to Switch4.
Switch4 will need to block one of its ports to avoid a bridging loop between the two switches. But
how does Switch4 select its blocked port? Well, the answer is based on theBPDUs it receives from
Switch3.A BPDU is superior to another if it has:
1. A lower Root Bridge ID
2. A lower path cost to the Root
3. A lower Sending Bridge ID
4. A lower Sending Port ID
These four parameters are examined in order. In this specific case, all the BPDUs sent by Switch3
have the same Root Bridge ID, the same path cost to the Root and the same Sending Bridge ID.
The only parameter left to select the best one is the Sending Port ID (Port ID = port priority + port
index). In this case the port priorities are equal because they use the default value, so Switch4 will
compare port index values, which are unique to each port on the switch, and because Fa0/12 is
inferior to Fa0/1, Switch4 will select the port connected with Fa0/1 (of Switch3) as its root port and
block the other port -> Port fa0/11 of Switch4 will be blocked (discarding role).

QUESTION NO: 74
Which term describes a spanning-tree network that has all switch ports in either the blocking or
forwarding state?
A. converged
B. redundant
C. provisioned
D. 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. When layer 2 is converged, root bridge
is elected and all port roles (Root, Designated and Non-Designated) in all switches are selected.

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66

Answer: B.1D STP. RSTP cannot operate with PVST+. rapid spanning tree protocol (IEEE802. D.1W.1D standard evolution. E." . client F.) A. Any Time. desirable E. RSTP defines no new port states. auto C. learning status. not revolution. RSTP defines new port roles. It retains most of the parameters.actualtests. RSTP is compatible with the original IEEE 802.com 67 .C.E Explanation: When network topology changes. forwarding Answer: B. on D.D Explanation: These are the different types of trunk modes: QUESTION NO: 76 Which two of these statements regarding RSTP are correct? (Choose two. RSTP is 802.) A. transparent B. RSTP not only defines the role of other ports: alternative port and backup port. referred to as RSTP) will speed up significantly the speed to re-calculate spanning tree. B.1D STP. but also defines status of 3 ports: discarding status. and makes no changes.Cisco 200-120 Exam QUESTION NO: 75 What are the possible trunking modes for a switch port? (Choose three. "Pass Any Exam.www. C. forwarding status. RSTP is a proprietary implementation of IEEE 802.

A hub is connected directly to FastEthernet0/5.) A. E. Any Time.E Explanation: Carefully observe the information given after command show.Cisco 200-120 Exam QUESTION NO: 77 Refer to the exhibit. and these MAC are in different VLAN. Interface FastEthernet0/2 has been disabled. B." . Which two statements are true of the interfaces on Switch1? (Choose two. Fa0/1 is connected to Switch2. Answer: B. seven MAC addresses correspond to Fa0/1.com 68 . FastEthernet0/5 has statically assigned MAC addresses.www. F. D. C.actualtests. FastEthernet0/1 is configured as a trunk link. Multiple devices are connected directly to FastEthernet0/1. FastEthernet0/1 is connected to a host with multiple network interface cards. From this we know thatFa0/1 is the trunk interface. "Pass Any Exam.

the switch with the lowest IP address Answer: B Explanation: Each switch in your network will have a Bridge ID Priority value. The lowest BID will win the election process. QUESTION NO: 78 Three switches are connected to one another via trunk ports. VLANs provide a method of conserving IP addresses in large networks.Only trunks are able to pass information from devices in multiple VLANs. more commonly referred to as a BID. the switch with the highest IP address D. VLANs utilize packet filtering to enhance network security.actualtests. QUESTION NO: 79 What are three advantages of VLANs? (Choose three. Thus we know that Fa0/5 is connected to a Hub.com 69 . the BID would be 32768:11-22-33-44-55-66. Assuming the default switch configuration. there are multiple MAC addresses from different VLANs attached tothe FastEthernet 0/1 interface. "Pass Any Exam.768 and a MAC address of 1122-33-44-55-66. C. if the switch priority is left at the default. VLANs establish broadcast domains in switched networks. However. the switch with the lowest MAC address C. Therefore. D. B. which switch is elected as the root bridge for the spanning-tree instance of VLAN 1? A.Cisco 200-120 Exam From the information given by show cdp neighbors we find that there is no Fa0/5 in CDP neighbor. with the priority value listed first. Based on the output shown. the switch with the highest MAC address B.www. F0/5 corresponds to two MAC addresses in the same VLAN. This BID is a combination of a default priority value and the switch's MAC address. if a Cisco switch has the default priority value of 32. Any Time. the MAC address is the deciding factor in the root bridge election. VLANs provide a low-latency internetworking alternative to routed networks. For example.) A." .

"Pass Any Exam. not physical location. 802. On CAT1. Packet filtering is a function of firewall instead of VLAN. This makes network more flexible and scalable. What will happen in this scenario? A. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames. QUESTION NO: 81 Refer to the exhibit.com 70 .actualtests. Answer: A.1Q trunk is configured between the two switches. F. An 802. Answer: C Explanation: A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802. B. but on CAT2 the native VLAN is not specified. or changing hosts on the network.E." . Any Time. D.F Explanation: VLAN technology is often used in practice. VLANs can greatly simplify adding. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan. VLAN 10 is chosen as native.Cisco 200-120 Exam E. moving. because it can better control layer2 broadcast to improve network security. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.1Q giants frames could saturate the link. A native VLAN mismatch error message will appear. C. QUESTION NO: 80 Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. VLANs allow access to network services based on department.1Q link.www.

D." . Any Time.www. C.com 71 .1Q protocol. QUESTION NO: 82 Refer to the exhibit.Cisco 200-120 Exam A network technician is asked to design a small network with redundancy. the router will not accept it and show error when the administrator assigns it. The connection between switches should be a trunk. "Pass Any Exam. B. What conclusions can be made about this design? A. E. Spanning-tree will need to be used.actualtests. If two interfaces are in the same network. The router will not accept the addressing scheme. The router interfaces must be encapsulated with the 802. Answer: C Explanation: Each interface on a router must be in a different network. The exhibit represents this design. with all hosts configured in the same VLAN. This design will function as intended.

Any Time. The Fa0/1 port is not operational on one of the switches. "Pass Any Exam.actualtests.Cisco 200-120 Exam A technician is troubleshooting host connectivity issues on the switches. Hosts in the Admin VLAN are able to communicate. D. The link connecting the switches has not been configured as a trunk. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12.com 72 . C. A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12. At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate. Port FastEthernet 0/1 needs to be configured as an access link on both switches. E. What could be the problem? A. B. Answer: B Explanation: In order for hosts in the same VLAN to communicate with each other over multiple switches.www. those switches need to be configured as trunks on their connected interfaces so that they can pass traffic from multiple VLANs." . The port-to-VLAN assignments are identical on the two switches.

Answer: C Explanation: Here we can see that this port is configured for full duplex. D. Check the duplex mode for SwitchA's fa0/2 port. Any Time. Check the trunk encapsulation mode for SwitchA's fa0/2 port. B. so the next step would be to check the duplex setting of the port on the other switch. Check the trunk encapsulation mode for SwitchC's fa0/1 port." .actualtests. "Pass Any Exam.A mismatched trunk encapsulation would not result in input errors and CRC errors.com 73 .www. QUESTION NO: 84 Refer to the exhibit. C.Cisco 200-120 Exam QUESTION NO: 83 Refer to the exhibit. what should the network administrator's next action be? A. Check the duplex mode for SwitchC's fa0/1 port. Given this output for SwitchC.

What is the correct configuration for SW2? A.www. 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 B.com 74 .actualtests. 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 switchport mode trunk "Pass Any Exam. The SW1 configuration is shown. Any Time." .Cisco 200-120 Exam 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.

Any Time. speed B. duplex and the trunk encapsulation must be the same on each end. trunk encapsulation D. QUESTION NO: 86 Refer to the exhibit. "Pass Any Exam. DTP negotiation settings C. duplex Answer: B Explanation: For an etherchannel to come up.Cisco 200-120 Exam D.com 75 . we need to configure the other switch with “desirable” mode. PagP modes: auto | Desirable LACP modes: active | pasive QUESTION NO: 85 What parameter can be different on ports within an EtherChannel? A. 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”." . so. the speed. it was using PagP.www.actualtests.

On what interface is the IP address configured? A. bundling four interfaces into channel group 1. the lowest number member interface "Pass Any Exam. interface FastEthernet 0/3 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk B. the highest number member interface C.com 76 ." . all member interfaces D.actualtests. QUESTION NO: 87 A network administrator creates a layer 3 EtherChannel. the port-channel 1 interface B. interface FastEthernet 0/3 channel-group 2 mode passive switchport trunk encapsulation dot1q switchport mode trunk C. Any Time.www. interface FastEthernet 0/3 channel-group 2 mode on switchport trunk encapsulation dot1q switchport mode trunk Answer: B Explanation: Based on the output shown. so only choice B is correct.Cisco 200-120 Exam What set of commands was configured on interface Fa0/3 to produce the given output? A. the configured channel group number was 2 and the mode used was passive. interface FastEthernet 0/3 channel-group 2 mode active switchport trunk encapsulation dot1q switchport mode trunk D.

Any Time.cisco. IP addressing (IPv4 / IPv6) QUESTION NO: 88 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.actualtests.252. You can configure up to 16 FECs and 1 GEC on the Catalyst 2948G-L3 and up to 4 GECs on the Catalyst 4908G-L3.255. Reference: http://www.255.252 "Pass Any Exam. 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.Cisco 200-120 Exam Answer: A Explanation: To create an EtherChannel interface and assign its IP address and subnet mask. use the following steps beginning in global configuration mode: Command Purpose Step 1 Router(config)#interface port-channelchannel-number Router(config-if)# Creates the EtherChannel interface. not the underlying physical member interfaces. 192.www. Which network address and subnet mask meet this requirement? A.168. Step 2 Router(config-if)#ip addressip-address subnet-mask Assigns an IP address and subnet maskto the EtherChannel interface.0 255. Optionally. Step 3 Router(config-if)#exit Router(config)# Exits this mode.html Topic 3." .com 77 .com/c/en/us/td/docs/switches/lan/catalyst2948gand4908g/120_7_w5_15d/configuration/guide/config/ether_ch.

16 255. what is the correct network address? A. since we cannot use the network or broadcast address.16.1 .252.248 C. the network range is 172.255.255." . 172.240.255.252.16.172.0.1? A.252 D.252 with a subnet mask of 255.255.252 Answer: B Explanation: A subnet mask of 255.16. 192. 0::/10 Answer: A "Pass Any Exam.254.com 78 .16. A subnet mask of 255.0 C.255.31. 192.16.Cisco 200-120 Exam B. the network address is 172.168.168.28.0 D.0.www.255.28.168.255.24.0 and the broadcast IP address is 172.16 255. QUESTION NO: 90 Which IPv6 address is the equivalent of the IPv4 interface loopback address 127. ::1 B.240 E. 172.16.16. 172.16.255. QUESTION NO: 89 Given an IP address 172.16.252 will allow for only 2 usable IP addresses. 192. 172.0 B. Any Time.actualtests. 192.16.255.255.31.255.16. :: C.8 255.252.255.8 255.0.0.168.0 Answer: A Explanation: For this example.16.255.248 will allow for up to 6 hosts to reside in this network.252. 2000::/3 D.255.

so could also be written as ::1/128. with the first 127 bits being '0' and the 128th bit being '1'. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.www. plug-and-play F.0/23. checksums "Pass Any Exam. 10. 10. QUESTION NO: 91 You are working in a data center environment and are assigned the address range 10.0/26 B. QUESTION NO: 92 What are three features of the IPv6 protocol? (Choose three.31.0/27 E.0/28 D.com 79 .actualtests.Cisco 200-120 Exam Explanation: In IPv6 the loopback address is written as. Also the question requires the maximum number of subnets (which minimum the number of hostsper-subnet) so /27 is the best choice. 10.188.31.188. It's just a single address.::1 This is a 128bit number.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 -> /27.0/25 C.188. Which IP address range meets these requirements? A.31. autoconfiguration C. 10.188. 10.) A.31.188. no broadcasts D." .188. Any Time. optional IPsec B.31.31. complicated header E.

global unicast B. 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. and therefore does not define broadcast addresses. the transmission of a packet to all hosts on the attached link using a special broadcast address." .1.E Explanation: An important feature of IPv6 is that it allows plug and play option to the network devices by allowing them to configure themselves independently.Cisco 200-120 Exam Answer: B.actualtests. your version of IOS does not support IPv6. This feature was critical to allow network connectivity to an increasing number of mobile devices. ipv6 host C.e.0. QUESTION NO: 93 Which command enables IPv6 forwarding on a Cisco router? A.com 80 . In IPv6. the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1.C.This is accomplished by autoconfiguration. ipv6 unicast-routing D. It is possible to plug a node into an IPv6 network without requiring any human intervention.0. anycast C. QUESTION NO: 94 What is known as "one-to-nearest" addressing in IPv6? A. multicast D. Any Time. ipv6 local B. unspecified address "Pass Any Exam. i.www. which is analogous to IPv4 multicast to address 224. IPv6 does not implement traditional IP broadcast.

manufacturer.www. They are used as the first 24 nits of the MAC address to uniquely identify a particular piece of equipment. or other organization globally or worldwide. QUESTION NO: 95 What is the first 24 bits in a MAC address called? A. 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).actualtests. BIA C. QUESTION NO: 96 Refer to the exhibit. Which subnet mask will place all hosts on Network B in the same subnet with the least amount of "Pass Any Exam. OUI D. VAI Answer: C Explanation: An Organizationally Unique Identifier (OUI) is a 24-bit number that uniquely identifies a vendor. NIC B.com 81 .Cisco 200-120 Exam Answer: B Explanation: IPv6 Anycast addresses are used for one-to-nearest communication. Any Time." .

255.254.0 /22 C.0 Answer: B Explanation: Explanation: 310 hosts < 512 = 29-> We need a subnet mask of 9 bits 0 -> 1111 1111.2. 10.255.0." . 10.1111 1111.www.255. 10.3.0.0000 0000 -> 255.0.0 B.1.0. 10.248.0.0. 255.0/22 subnet mask will include the 10.actualtests.0. "Pass Any Exam.0 /23 D.0 /24 Answer: B Explanation: The 10.0.0.0 QUESTION NO: 97 Refer to the exhibit. What is the most appropriate summarization for these routes? A. 255.252. 10.255.0.0 networks.0 D.255.254.255.1111 1110.0.0. 255.0 /21 B.0.0.0. 255.0 C. 10.com 82 .0. Any Time.0.0.Cisco 200-120 Exam wasted addresses? A. and only those four networks. and 10.

anycast addressing. and broadcast. and multicast addressing. podcast E. A single interface may be assigned multiple IPv6 addresses of any type. Answer: B.www.C Explanation: IPv6 addresses are classified by the primary addressing and routing methodologies common in networking:unicast addressing. broadcast C.) A. B. multicast. anycast." . D.Cisco 200-120 Exam QUESTION NO: 98 Which two are features of IPv6? (Choose two. allcast Answer: A. multicast D.C Explanation: Reference: IPv6 Addressing at a Glance – Cisco PDF QUESTION NO: 100 Refer to the exhibit. "Pass Any Exam. anycast B. E.actualtests. There are four types of IPv6 addresses: unicast. QUESTION NO: 99 Which two of these statements are true of IPv6 address representation? (Choose two. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory. Every IPv6 interface contains at least one loopback address.com 83 . Any Time. C. The first 64 bits represent the dynamically created interface ID.) A.

actualtests.168.168. 192.1. Therefore subnet bits are 2 bits (8-6) in fourth octet.com 84 . 8bits+ 8bits+ 8bits + 2bits = /26 /26 bits subnet is 24bits + 11000000 = 24bits + 192 256 – 192 = 64 0 -63 64 – 127 QUESTION NO: 101 Refer to the exhibit.1.1.www.56/26 B. 192.1. Any Time.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.64/26 D. 192.56/27 C.Cisco 200-120 Exam A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses? A." . 192.168.168. "Pass Any Exam.

30 "Pass Any Exam.3. Which network addresses should be used for Link A and Network A? (Choose two.16." . 6 C.172. Link A . QUESTION NO: 102 The network administrator needs to address seven LANs.16. Network A . 172.com 85 . Link A .3. Network A .3. 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.D Explanation: Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used.172. a /25 is required for 120 hosts and again 172.16.172.www.3.112/30 Answer: B.128/25 is the best.16.actualtests.3.3.16. valid option. Link A .128/25 C.48/26 B.0/30 E.172.Also.3.192/26 D.16.16.172.Cisco 200-120 Exam All of the routers in the network are configured with the ip subnet-zero command. Network A .172. 8 B. Any Time.16.3.40/30 F.) A.0/30 is valid.

auto-negotiation of media rates C." . The NAT process will be used to translate this address to a valid IP address. Any Time. B. since we need to reserve the network and broadcast addresses for each of these subnets. Addresses in a private range will not be routed on the Internet backbone.com 86 . efficient utilization of MAC addresses D. 14 F.www. QUESTION NO: 104 Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two. and cannot be used globally for Internet use. 16 Answer: C Explanation: Since there is one class C network thatmeans 256 total IP addresses. only 30 total IP addresses are usable. Only the ISP router will have the capability to access the public network.Cisco 200-120 Exam D. ease of management and troubleshooting "Pass Any Exam. C. A conflict of IP addresses happens.However. QUESTION NO: 103 What will happen if a private IP address is assigned to a public interface connected to an ISP? A.actualtests.) A. 32 E. D. Answer: A Explanation: Private RFC 1918 IP addresses are meant to be used by organizations locally withintheir own network only. because other public routers can use the same range. dedicated communications between devices E. reduces routing table entries B.Sincewe need 7 LAN blocks and we cannot use the first one (subnet 0) we take 256/8=32 hosts.

www. Both of these can be used in any number of combinations to notate the same address.asp?p=174107 QUESTION NO: 105 What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72? A. B514 : 82C3 : 0029 :: EC7A : 0000 : EC72 D.So. B514 : 82C3 : 0029 : EC7A : EC72 B. "Pass Any Exam. the extra 0’s can only be compressed once.com/articles/article. Any Time.Cisco 200-120 Exam Answer: A.actualtests. QUESTION NO: 106 Refer to the diagram." . B514 : 82C3 :: 0029 : EC7A : EC72 C.ciscopress. B514 : 82C3 :: 0029 : EC7A : 0 : EC72 Answer: D 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 (::).E Explanation: Here are some of the benefits of hierarchical addressing: Reference: http://www. It is important to note that the double colon (::) can only be used once within asingle IPv6 address notation.com 87 .

The IP address 172.255.205 can be assigned to hosts in VLAN1 E. The LAN interface of the router is configured with one IP address.16. "Pass Any Exam. one with an IP address that belongs in each VLAN.1. The subnet mask in use is 255.com 88 . which is needed.1.www. Global addresses start with 2000::/3.1-172. The subnet mask in use is 255.255. C.Cisco 200-120 Exam All hosts have connectivity with one another.C.1.16.192.128:This is subnet mask will support up to 126 hosts.126 The LAN interface of the router is configured with multiple IP addresses:The router will need 2 subinterfaces for the single physical interface. Any Time.) A.255.16.16.16.255. F.1.128. B.255.actualtests. The LAN interface of the router is configured with multiple IP addresses. Answer: B. The IP address 172.25 canbe assigned to hosts in VLAN1:The usable host range in this subnet is 172. The IP address 172. QUESTION NO: 107 Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.255.) A.1.F Explanation: The subnet mask in use is 255.25 can be assigned to hosts in VLAN1 D. Which statements describe the addressing scheme that is in use in the network? (Choose three." .

Link-local addresses start with FE00:/12. NAT Answer: A. If a global address is assigned to an interface. Link-local addresses start with FF00::/10. autoconfiguration F. and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address. Any Time. E.com 89 . There is only one loopback address and it is ::1.Cisco 200-120 Exam B.actualtests.www. Telnet access does not require a password E. then that is the only allowable address for the interface. change of source address in the IPv6 header C. D. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.E Explanation: IPv6 does not use broadcasts." . Answer: A. no broadcast B.D Explanation: Below is the list of common kinds of IPv6 addresses: QUESTION NO: 108 The network administrator has been asked to give reasons for moving from IPv4 to IPv6. change of destination address in the IPv6 header D. "Pass Any Exam.) A. C.

25 (router) – 192.168.168.24.240 B.248 Default Gateway: 192." .168.0 D.20.255. 255. 255.224 E.30 Subnet Mask: 255. IP address: 192.Cisco 200-120 Exam QUESTION NO: 109 An administrator must assign static IP addresses to the servers in a network.25 Answer: C Explanation: For the 192.0 Default Gateway: 192. IP address: 192.14 Subnet Mask: 255.168.255.255.24/29.24. 255.255.168.24/29 network.255.30 Subnet Mask: 255.168. the usable hosts are 192. with each LAN containing 5 to 26 hosts? A.17 E.255.www.20.20.255.255.168.248 Default Gateway: 192.20.20.20.9 B.20.168. Any Time.255.168.1 C. For network 192.240 Default Gateway: 192.240 Default Gateway: 192.255. 255.168.0.252 C.255. QUESTION NO: 110 Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs.168.20. IP address: 192. the router is assigned the first usable host address while the sales server is given the last usable host address.com 90 .20.240 "Pass Any Exam.255.255.255.20.168.25 D.20.20.168.168. IP address: 192.255.0.255.actualtests.254 Subnet Mask: 255.30 Subnet Mask: 255. 0.255.255. Which of the following should be entered into the IP properties box for the sales server? A.30 (used for the sales server). IP address: 192.

4 C. The groups are separated by colons (:). (Choose three. use DHCPv6 to map IPv4 addresses to IPv6 addresses Answer: A. enable dual-stack routing B.) A. configure IPv4 tunnels between IPv6 islands D." . a mask of 255. statically map IPv4 addresses to IPv6 addresses F. 8 D. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.224 will allow for up to 8 networks with 32 IP addresses each (30 usable). 16 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.C.Cisco 200-120 Exam Answer: D Explanation: For a class C network. QUESTION NO: 111 How many bits are contained in each field of an IPv6 address? A.D Explanation: "Pass Any Exam. Any Time.255. configure IPv6 directly C. use proxying and translation to translate IPv6 packets into IPv4 packets E.www.actualtests. 24 B.com 91 .255. each group representing 16 bits (two octets). QUESTION NO: 112 What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme.

64.0 /20 C.0/18.32. Hosts can simultaneously reach IPv4 and IPv6 content. All these 3 subnets have the same form of 172. 172.64.x.16. 172.0.0.32.actualtests." . 172.16.0.16. Any Time. 172.0/24 and 172.0.0 /16 Answer: A Explanation: Router A receives 3 subnets: 172.16.0 /16 B. Tunnels are used to carry one protocol inside another.x so our summarized subnet must be also in "Pass Any Exam.Cisco 200-120 Exam Several methods are used terms of migration including tunneling. devices are able to run IPv4 and IPv6 together and if IPv6 communication is possible that is the preferred protocol.0 /16 E.0/18.Dual stack uses a combination of both native IPv4 and IPv6. In this VLSM addressing scheme. translators.0 /24 D.128.16. 172.32. QUESTION NO: 113 Refer to the exhibit. 172.16.16. what summary address would be sent from router A? A. With dual stack. 172. while translators simply translate IPv6 packets into IPv4 packets.0.www.0 /17 F.com 92 . and dual stack.0.

by appending 0xFF to the MAC address B. 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. QUESTION NO: 114 How is an EUI-64 format interface ID created from a 48-bit MAC address? A. by prefixing the MAC address with 0xFF and appending 0xFF to it D. "Pass Any Exam. -> Only answer A has these 2 conditions ->. by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address E. Any Time.com 93 . B or . by prefixing the MAC address with 0xFFEE C.www. QUESTION NO: 115 Refer to the exhibit.actualtests." .Cisco 200-120 Exam that form -> Only A. 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.

0/24 172.4.0/24 172. FEC0:ABCD:WXYZ:0067::2A4 D.0 – 172.5.4.0/22 B.128/25 172.1.6. 172.0/22 subnet encompasses all routes from the IP range 172.www.0/24 172.7." . QUESTION NO: 116 Which option is a valid IPv6 address? A.1.1.1.0. 2004:1:25A4:886F::1 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits. 172.0/24 172. 2002:7654:A1AD:61:81AF:CCC1 C.1.4.1.1. 2001:0000:130F::099a::12a B.0/24 Answer: C Explanation: The 172. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.6.4. 172. each group representing 16 bits (two octets).The leading 0’s in a group can be collapsed using ::.1.7.1.5. 172.actualtests.4.1.0/21 C.0/22 D. but this can only be done once in an IP address.0/25 172.1.0. 172. The groups are separated by colons (:).4. "Pass Any Exam.1.1.7.Cisco 200-120 Exam What is the most efficient summarization that R1 can use to advertise its networks to R2? A.1.0/24 E.com 94 .1.255.0/24 172. Any Time.

Cisco 200-120 Exam
QUESTION NO: 117
Which three are characteristics of an IPv6 anycast address? (Choose three.)
A. one-to-many communication model
B. one-to-nearest communication model
C. any-to-many communication model
D. a unique IPv6 address for each device in the group
E. the same address for multiple devices in the group
F. delivery of packets to the group interface that is closest to the sending device
Answer: B,E,F
Explanation:
A new address type made specifically for IPv6 is called the Anycast Address. These IPv6
addresses are global addresses, these addresses can be assigned to more than one interface
unlike an IPv6 unicast address. Anycast is designed to send a packet to the nearest interface that
is apart of that anycast group.
The sender creates a packet and forwards the packet to the anycast address as the destination
address which goes to the nearest router. The nearest router or interface is found by using the
metric of a routing protocol currently running on the network. However in a LAN setting the nearest
interface is found depending on the order the neighbors were learned. The anycast packet in a
LAN setting forwards the packet to the neighbor it learned about first.

QUESTION NO: 118
A national retail chain needs to design an IP addressing scheme to support a nationwide network.
The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per
subnet. Working with only one Class B address, which of the following subnet masks will support
an appropriate addressing scheme? (Choose two.)
A. 255.255.255.0
B. 255.255.255.128
C. 255.255.252.0
D. 255.255.255.224
E. 255.255.255.192
F. 255.255.248.0
Answer: B,E
Explanation:

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95

Cisco 200-120 Exam
Subnetting is used to break the network into smaller more efficient subnets to prevent excessive
rates of Ethernet packet collision in a large network. Such subnets can be arranged hierarchically,
with the organization's network address space (see also Autonomous System) partitioned into a
tree-like structure. Routers are used to manage traffic and constitute borders between subnets.
A routing prefix is the sequence of leading bits of an IP address that precede the portion of the
address used as host identifier. In IPv4 networks, the routing prefix is often expressed as a
"subnet mask", which is a bit mask covering the number of bits used in the prefix. An IPv4 subnet
mask is frequently expressed in quad-dotted decimal representation, e.g., 255.255.255.0 is the
subnet mask for the 192.168.1.0 network with a 24-bit routing prefix (192.168.1.0/24).

QUESTION NO: 119
Refer to the exhibit.

A network administrator is adding two new hosts to SwitchA. Which three values could be used for
the configuration of these hosts? (Choose three.)
A. host A IP address: 192.168.1.79
B. host A IP address: 192.168.1.64
C. host A default gateway: 192.168.1.78
D. host B IP address: 192.168.1.128
E. host B default gateway: 192.168.1.129
F. host B IP address: 192.168.1.190
Answer: A,C,F
Explanation:

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96

Cisco 200-120 Exam
It’s a “router-on-a-stick” configuration. Which means each host in the VLAN must corresponds with
the VLAN configured on the sub-interfaces.
VLAN 10 is configured on fa0/0.10 and VLAN 20 on fa0/0.20. So each hosts in VLAN 10 must use
fa0/0.10 IP address as their default gateway, each hosts must also be in the same subnet as
fa0/0.10 IP – same with hosts in VLAN 20.
So find out the usable IP addresses on each sub-interfaces – for 192.168.1.78 /27: 192.168.1.65 –
.94 and for 192.168.1.130 /26: 192.168.1.128 – .190.
Host A (using port 6 – VLAN 10) must use IP 192.168.1.79, default gateway 192.168.1.78.
Host B (using port 9 – VLAN 20) must use IP 192.168.1.190, default gateway 192.168.1.130.

QUESTION NO: 120
Which IPv6 address is the all-router multicast group?
A. FF02::1
B. FF02::2
C. FF02::3
D. FF02::4
Answer: B
Explanation:

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

QUESTION NO: 121
Refer to the exhibit.

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97

Cisco 200-120 Exam

Which address range efficiently summarizes the routing table of the addresses for router Main?
A. 172.16.0.0./21
B. 172.16.0.0./20
C. 172.16.0.0./16
D. 172.16.0.0/18
Answer: B
Explanation:
The 172.16.0.0./20 network is the best option as it includes all networks from 172.16.0.0 –
172.16.16.0 and does it more efficientlythan the /16 and /18 subnets.The /21 subnet will not
include all the other subnets in this one single summarized address.

QUESTION NO: 122
Which IPv6 address is valid?
A. 2001:0db8:0000:130F:0000:0000:08GC:140B
B. 2001:0db8:0:130H::87C:140B
C. 2031::130F::9C0:876A:130B
D. 2031:0:130F::9C0:876A:130B
Answer: D
Explanation:
An IPv6 address is represented as eight groups of four hexadecimal digits, each group
representing 16 bits (two octets). The groups are separated by colons (:). An example of an IPv6
address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.The leading 0’s in a group can be
"Pass Any Exam. Any Time." - www.actualtests.com

98

Cisco 200-120 Exam
collapsed using ::, but this can only be done once in an IP address.

QUESTION NO: 123
Which command can you use to manually assign a static IPv6 address to a router interface?
A. ipv6 autoconfig 2001:db8:2222:7272::72/64
B. ipv6 address 2001:db8:2222:7272::72/64
C. ipv6 address PREFIX_1 ::1/64
D. ipv6 autoconfig
Answer: B
Explanation:
To assign an IPv6 address to an interface, use the “ipv6 address” command and specify the IP
address you wish to use.

QUESTION NO: 124
Which of these represents an IPv6 link-local address?
A. FE80::380e:611a:e14f:3d69
B. FE81::280f:512b:e14f:3d69
C. FEFE:0345:5f1b::e14d:3d69
D. FE08::280e:611:a:f14f:3d69
Answer: A
Explanation:
In the Internet Protocol Version 6 (IPv6), the address block fe80::/10 has been reserved for linklocal unicast addressing. The actual link local addresses are assigned with the prefix fe80::/64.
They may be assigned by automatic (stateless) or stateful (e.g. manual) mechanisms.

QUESTION NO: 125
"Pass Any Exam. Any Time." - www.actualtests.com

99

Cisco 200-120 Exam
The network administrator is asked to configure 113 point-to-point links. Which IP addressing
scheme defines the address range and subnet mask that meet the requirement and waste the
fewest subnet and host addresses?
A. 10.10.0.0/16 subnetted with mask 255.255.255.252
B. 10.10.0.0/18 subnetted with mask 255.255.255.252
C. 10.10.1.0/24 subnetted with mask 255.255.255.252
D. 10.10.0.0/23 subnetted with mask 255.255.255.252
E. 10.10.1.0/25 subnetted with mask 255.255.255.252
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).
The network used for point-to-point connection should be /30.
So our initial network should be 30 – 7 = 23.
So 10.10.0.0/23 is the correct answer.
You can understand it more clearly when writing it in binary form:
/23 = 1111 1111.1111 1110.0000 0000
/30 = 1111 1111.1111 1111.1111 1100 (borrow 7 bits)

Topic 4, IP Routing Technologies
QUESTION NO: 126 DRAG DROP
Drag each definition on the left to the matching term on the right.

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100

actualtests.Cisco 200-120 Exam Answer: Explanation: QUESTION NO: 127 DRAG DROP Drag the Cisco default administrative distance to the appropriate routing protocol or route.com 101 ." .) "Pass Any Exam.www. (Not all options are used. Any Time.

Cisco 200-120 Exam Answer: Explanation: QUESTION NO: 128 DRAG DROP Routing has been configured on the local router with these commands: "Pass Any Exam.com 102 .actualtests." .www. Any Time.

0.255.com 103 .Cisco 200-120 Exam Local(config)# ip route 0.3 Drag each destination IP address on the left to its correct next hop address on the right.0 0.0.0 255.1.0 192.168.255.0.1. Answer: Explanation: "Pass Any Exam.www.0.2. Any Time.0.168.0 192.1 Local(config)# ip route 10.2 Local(config)# ip route 10.0 255.0.0 192." .3.actualtests.255.168.0.1.

Bandwidth. MTU. Bandwidth B. This is called the “longest match” rule." . and Load Answer: A Explanation: "Pass Any Exam.com 104 .Cisco 200-120 Exam 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 route with the most bits in the mask set to “1 will be chosen to route packet. Reliability. and MTU D.www. Bandwidth and Delay C.actualtests. Delay. Delay. Any Time. QUESTION NO: 129 Which parameter or parameters are used to calculate OSPF cost in Cisco routers? A. Bandwidth.

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(config)# service password-encryption D.www. to confine network instability to single areas of the network E. Attached to that backbone via area border routers (ABRs) are anumber of secondary tier areas. Router# service password-encryption B.D Explanation: OSPF implements a two-tier hierarchical routing model that uses a core or backbone tier known as area zero (0). Router(config)# password-encryption C.actualtests. to speed up convergence D. to decrease latency by increasing bandwidth B. Router# password-encryption Answer: C Explanation: "Pass Any Exam. QUESTION NO: 131 Which command encrypts all plaintext passwords? A.C. Any Time. to lower costs by replacing routers with distribution layer switches Answer: B.) A.Cisco 200-120 Exam The well-known formula to calculate OSPF cost is Cost = 108/ Bandwidth QUESTION NO: 130 Why do large OSPF networks use a hierarchical design? (Choose three. to reduce the complexity of router configuration F. to reduce routing overhead C. reduced routing overhead.com 105 ." .

the password for Telnet access should be encrypted. Which set of commands will accomplish this task? A. For anyone viewing the configuration and issuing the show run command. QUESTION NO: 132 Which two are advantages of static routing when compared to dynamic routing? (Choose two. using automatic updates.0.actualtests. QUESTION NO: 133 A network administrator needs to allow only one Telnet connection to a router." . in stub networks where there is only a single uplink connection.1. F.Cisco 200-120 Exam 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.Also. E. Routing traffic load is reduced when used in stub network links.) A.168. C. the load is reduced as stub routers just need a single static default route. Security increases because only the network administrator may change the routing table.com 106 .255 "Pass Any Exam. Answer: B. service password-encryption access-list 1 permit 192. Route summarization is computed automatically by the router. instead of many routes that all have the same next hop IP address. An efficient algorithm is used to build routing tables.0. It is meant to prevent someone from looking over your shoulder and seeing the password.This is configured in global configuration mode. Routing updates are automatically sent to neighbors. G.www.0 0. Any Time. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation. B. D. it can be argued that it is more secure (and more prone to human errors) since the network administrator will need to make changesto the routing table directly. Configuration complexity decreases as network size increases.G Explanation: Since static routing is a manual process. Routing tables adapt automatically to topology changes. that is all.

Incorrect answer: command. service password-encryption line vty 1 login password cisco D.www. line vty0 4 would enable all 5 vty connections.Cisco 200-120 Exam line vty 0 4 login password cisco access-class 1 B. "Pass Any Exam. QUESTION NO: 134 Refer to the exhibit. Any Time. 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." .actualtests.com 107 . enable password secret line vty 0 login password cisco C.

1 C." .2 F.100.255. ip route 0.0 0. ip route 0. ip route 0.0.0.2 B. 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. Syntax for default route is: ip route <Remote_Network> <Netmask> <Next_Hop_Address>.100.0 0.0 255.1 D.0. ip route 0.0 172.255.16.Cisco 200-120 Exam The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s.0.1 E.16.www.0.com 108 .0 0.1.0. What configuration on the Manchester router will establish a route toward the Internet for traffic that originates from workstations on the Manchester LAN? A.255.0 172.0.16. ip route 0. ip route 0.0.107.0.0.255 172.0. You should generally only use default routing on stub networks—those with only one exit path out of the network.100.2 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.16.actualtests.0. QUESTION NO: 135 Refer to the exhibit. all traffic towards Internet that originates from workstations should forward to Router R1.100.0 255.255.0.0 172.107.255.1.0. "Pass Any Exam. Any Time.0 128.0. According to exhibit.0 255.252 128.255.

1. What is the simplest way to accomplish this? A. QUESTION NO: 136 Refer to the exhibit. D. C." .0.actualtests.1. "Pass Any Exam.1. F. Configure a static default route on London with a next hop of 10.Cisco 200-120 Exam The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations. Configure a static route on London to direct all traffic destined for 172.www. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router.com 109 .16.2. E.0/22 to 10. Configure a dynamic routing protocol on London to advertise all routes to Manchester. Any Time. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester.1. Configure Manchester to advertise a static default route to London.1. Answer: E Explanation: This static route will allow for communication to the Manchester workstations and it is better to use this more specific route than a default route as traffic destined to the Internet will then not go out the London Internet connection. B.

B. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter. a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two.) A. a static.Cisco 200-120 Exam The network administrator requires easy configuration options and minimal routing protocol traffic. Only the enable secret password will be encrypted." .F Explanation: The use of static routes will provide the necessary information for connectivity while producing no routing traffic overhead. Any Time.actualtests. E. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter.0. a static route on InternetRouter to direct traffic that is destined for 172. "Pass Any Exam. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter. QUESTION NO: 137 What is the effect of using the service password-encryption command? A. Only the enable password will be encrypted. Answer: C. B. default route on CentralRouter that directs traffic to InternetRouter. D.www. F.com 110 .0/16 to CentralRouter. C.16.

It allows seven failed login attempts before the VTY lines are temporarily shutdown.actualtests. QUESTION NO: 138 Refer to the exhibit. If the service password-encryption is used. the security of device access is improved. It will encrypt all current and future passwords.If you want to prevent non-SSH connections.www. It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports. It will encrypt the secret password and remove the enable secret password from the configuration. add the “transport input ssh” "Pass Any Exam. console. As a result. Use the show run command to show most passwords in clear text. Answer: D Explanation: Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. D. Any Time. It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet.com 111 . It configures SSH globally for all logins. Answer: E Explanation: Enable vty. 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. E. D. What is the effect of the configuration that is shown? A.Cisco 200-120 Exam C. Only passwords configured after the command has been entered will be encrypted. C. E." . all the passwords are encrypted. B. AUX passwords are configured on the Cisco device.

The interface is not receiving any keepalives. Straight (non-SSH) Telnets are refused. There is no encapsulation type configured.com 112 . line protocol down"? A. D. B. C.actualtests. "Pass Any Exam. You can bring up an interface having administratively down interface using no shutdown command. QUESTION NO: 140 Refer to the exhibit.Cisco 200-120 Exam command under the lines to limit the router to SSH connections only. E. F. What is the reason that the interface status is "administratively down.com/warp/public/707/ssh. The wrong type of cable is connected to the interface. The interface has been configured with the shutdown command." . it will display administratively down status. Answer: D Explanation: Interfaces can be enabled or disabled with shutdown/no shutdown command.cisco. There is a mismatch in encapsulation types. The interface needs to be configured as a DTE device.shtml QUESTION NO: 139 Refer to the exhibit. If you interface is down.www. Any Time. Reference:www.

the OSPF and RIPv2 routes Answer: B Explanation: "Pass Any Exam. Dead interval and AREA numbers QUESTION NO: 141 A router has learned three possible routes that could be used to reach a destination network. what would cause router A not to form an adjacency with router B? A. C. The process identifier on router A is different than the process identifier on router B. D. One route is from EIGRP and has a composite metric of 20514560. the OSPF route B. router A & B must have the same Hello interval. the RIPv2 route D. Answer: B Explanation: To form an adjacency (become neighbor). The loopback addresses are on different subnets. all three routes E." . Another route is from OSPF with a metric of 782. B.Cisco 200-120 Exam When running OSPF.actualtests. Route summarization is enabled on both routers.com 113 . Any Time. Which route or routes will the router install in the routing table? A. The values of the dead timers on the routers are different. The last is from RIPv2 and has a metric of 4. the EIGRP route C.www.

The Administrative Distances of popular routing protocols are listed below: QUESTION NO: 142 Refer to the exhibit.com 114 .Cisco 200-120 Exam Explanation: When one route is advertised by more than one routing protocol. "Pass Any Exam. the router will choose to use the routing protocol which has lowest Administrative Distance.actualtests." . Any Time.www.

Router# show ip eigrp adjacency B.192/26 network to a host on the LAN attached to router R1? A. From the output of the routing table of R3 we learn this network can be reach via 192. The path of the packets will be R3 to R2 to R1. Answer: D Explanation: Host on the LAN attached to router R1 belongs to 192. which shows the number of queued EIGRP packets) for the adjacent routers are listed: "Pass Any Exam.168. The path of the packets will be R3 to R1.10.10.168. B." . D. C.10. The retransmit interval and the queue counts for the adjacent routers also need to be checked. Router# show ip eigrp neighbors Answer: D Explanation: Below is an example of the show ip eigrp neighbors command.64/26 subnet. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. What path will packets take from a host on the 192.168.9.64 will be routed from R3 -> R1 -> LAN on R1. Router# show ip eigrp topology C. QUESTION NO: 143 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.Cisco 200-120 Exam The company uses EIGRP as the routing protocol. Any Time.www. Router# show ip eigrp interfaces D.10.actualtests. The retransmit interval (Smooth Round Trip Timer – SRTT) and the queue counts (Q count. which is an IP address in 192.com 115 .10.168.8/30 network (the network between R1 & R3) -> packets destined for 192. The path of the packets will be R3 to R1 to R2. What command will display the required information? A.168.

com 116 . 2. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. What are possible reasons for this problem? (Choose two. F.) A.F Explanation: This question is to examine the conditions for OSPF to create neighborhood. Any Time. B. each router must be matched with the following items: 1. R1 and R2 are the DR and BDR. All of the routers need to be configured for backbone Area 1. The area ID and its types. R1 is unable to establish an OSPF neighbor relationship with R3. C. So as to make the two routers become neighbors.Cisco 200-120 Exam QUESTION NO: 144 Refer to the graphic. E." . EIGRP is also configured on these routers with a lower administrative distance. The hello and dead interval timers are not set to the same values on R1 and R3. D.actualtests. so OSPF will not establish neighbor adjacency with R3.www. Hello and failure time interval timer. 3. Answer: D. "Pass Any Exam. OSPF Password (Optional). R1 and R3 are configured in different areas.

QUESTION NO: 146 Refer to the exhibit. a command that is universal in application and supports all protocols D.An example of a global command is one used for the hostname of the router. a command that is implemented in all foreign and domestic IOS versions C. a command that can be entered in any configuration mode Answer: A Explanation: When you enter global configuration mode and enter a command.com 117 . regardless of the version or deployment status E." . Any Time. Loopback interfaces must be configured so a DR is elected C. When running EIGRP.www. it is applied to the running configuration file that is currently running in ram. The no auto-summary command is needed on Router A and Router C "Pass Any Exam. what is required for RouterA to exchange routing updates with RouterC? A.Cisco 200-120 Exam QUESTION NO: 145 What is a global command? A.The configuration of a global command affects the entire router. AS numbers must be changed to match on all the routers B.actualtests. a command that is set once and affects the entire router B. a command that is available in every release of IOS.

actualtests. The following information must be matched so as to create neighborhood.com 118 ." .Cisco 200-120 Exam D. It is now ready to find and load an IOS image. Answer: A Explanation: Default (normal) Boot Sequence Power on Router . It attempts to boot from a TFTP server. Router B needs to have two network statements.Check configuration registerto see what mode the router should boot up in (usually 0x2102 to read startup-config in NVRAM / or 0x2142 to start in "setup-mode") . EIGRP routers to establish.load IOS from Flash. AS Number. What function does the router perform next? A. B. must match the following information: 1. It checks the configuration register. Any Time. 2.Bootstrap starts IOS load . QUESTION NO: 147 A Cisco router is booting and has just completed the POST process. one for each connected network Answer: A Explanation: This question is to examine the understanding of the interaction between EIGRP routers. D. "Pass Any Exam. QUESTION NO: 148 Refer to the exhibit.www.check the startup-config file in NVRAM for boot-system commands . K value. It inspects the configuration file in NVRAM for boot instructions. C. It loads the first image file in flash memory.Router does POST .

What is needed to allow communication between the VLANs? A.com 119 . a switch with an access link that is configured between the switches D. The maximum packet size that can traverse this interface is 1500 bytes." . E. hosts on the same VLAN can communicate with each other. D. QUESTION NO: 149 On a corporate network. establishing Trunking links to achieve communications of "Pass Any Exam. Any Time. a router with subinterfaces configured on the physical interface that is connected to the switch B. B. then make the sub-interface on the router to connect to the switch. The maximum number of bytes that can traverse this interface per second is 1500.Cisco 200-120 Exam What is the meaning of the output MTU 1500 bytes? A. Answer: E Explanation: The Maximum Transmission Unit (MTU) defines the maximum Layer 3 packet (in bytes) that can be transmitted out the interface. but they are unable to communicate with hosts on different VLANs. F. Hence.actualtests. The maximum segment size that can traverse this interface is 1500 bytes. The minimum packet size that can traverse this interface is 1500 bytes. a router with an IP address on the physical interface connected to the switch C. C. a switch with a trunk link that is configured between the switches Answer: A Explanation: Different VLANs can't communicate with each other. The minimum segment size that can traverse this interface is 1500 bytes. they can communicate with the help of Layer3 router. it is needed to connect a router to a switch. The maximum frame size that can traverse this interface is 1500 bytes.www.

To change this and allow inter-VLAN communication. the full command is “show processes”) command gives us lots of information about each process but in fact it is not easy to read.x." . "Pass Any Exam. When using VLANs in networks that have multiple interconnected switches.y QUESTION NO: 150 Which command displays CPU utilization? A.www.x y. show version Answer: B Explanation: Explanation: The “show process” (in fact.y. Below shows the output of this command (some next pages are omitted). the switches tag each frame sent between switches so that the receiving switch knows to what VLAN the frame belongs. The attached devices are unaware of any VLAN structure. you need to use VLAN trunking between the switches.y. only hosts that are members of the same VLAN can communicate. By default. Any Time.x. End user devices connect to switch ports that provide simple connectivity to a single VLAN each.1 RouterA(config-subif)#encapsulation ? dot1Q IEEE 802. show process C.actualtests. Here is the example of configuring the router for inter-vlan communication RouterA(config)#int f0/0.1Q Virtual LAN RouterA(config-subif)#encapsulation dot1Q or isl VLAN ID RouterA(config-subif)# ip address x.com 120 . show protocols B. show system D.Cisco 200-120 Exam devices which belong to different VLANs. With VLAN trunking. you need a router or a layer 3 switch.

com 121 ." .Cisco 200-120 Exam A more friendly way to check the CPU utilization is the command “show processes cpu history”.actualtests. one hour. in which the total CPU usage on the router over a period of time: one minute. and 72 hours are clearly shown: "Pass Any Exam.www. Any Time.

from the last graph (last 72 hours) we learn that the highest CPU utilization within 72 hours is 37% about six hours ago." . Use the shortest-path algorithm to the determine best path. B. Send periodic updates regardless of topology changes. Send entire routing table to all routers in the routing domain.www. For example. "Pass Any Exam. C. Any Time. Update the routing table based on updates from their neighbors. + The X-axis of the graph is the increment within the period displayed in the graph. QUESTION NO: 151 What two things will a router do when running a distance vector routing protocol? (Choose two.Cisco 200-120 Exam + The Y-axis of the graph is the CPU utilization.actualtests. D.) A.com 122 .

2. show ip ospf link-state B.133.2.111.133.111 755 0x80000005 0x0059CA 2 133. Answer: A. routers discover the best path to destination from each neighbor.133 775 0x80000005 0x00B5B1 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 10.111.4.2 793 0x80000003 0x004F85 2 10. QUESTION NO: 152 Which command is used to display the collection of OSPF link states? A.D Explanation: Distance means how far and Vector means in which direction.111.3 133.1 111. show ip ospf lsa database C.111.133.111.4.4.133.1.Cisco 200-120 Exam E.133 775 0x80000001 0x00C31F "Pass Any Exam.4.2. show ip ospf database Answer: D Explanation: The “show ip ospf database” command displays the link states.111 111.4." . show ip ospf neighbors D.1 111.www.2.2.4 10.133.2.111. R2#show ip ospf database OSPF Router with ID (2.4.2 2.133. In distance vector routing protocols.111.111 794 0x80000001 0x001E8B 10.133.133 812 0x80000001 0x004BA9 10.133 133.4 776 0x80000004 0x005643 1 111.133.2. The routing updates proceed step by step from router to router. Maintain the topology of the entire network in its database.actualtests.111 755 0x80000001 0x007F16 10.111.com 123 .1.4.2. Any Time.3 133. Distance Vector routing protocols pass periodic copies of routing table to neighbor routers and accumulate distance vectors.2) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 2.4.Here is an example: Here is the lsa database on R2.

actualtests. 3 MB B. The technician wants to upload a new IOS in the router while keeping the existing IOS. there are a total of 8 MB. 7 MB E. 5 MB D.www.8 are being used already. QUESTION NO: 154 Refer to the exhibit." . 8 MB Answer: B Explanation: In this example. but 3. 4 MB C. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in flash? A. so another file as large as 4MB can be loaded in addition to the original file.Cisco 200-120 Exam QUESTION NO: 153 Refer to the exhibit. Any Time.com 124 . "Pass Any Exam.

2 and the question stated that the subnet mask of the network between two routersis 255.1.1.255.E Explanation: From the output. The Manchester router is a Cisco 2610.252. The Manchester serial address is 10. So we can deduce the ip address (of the serial interface) of Manchester router is 10.1. what three statements are true of these devices? (Choose three. in this case it is the port of Manchester router.1 ->. D.) A.1. E. Given the output that is shown. The serial network between the two devices has a mask of 255. Please notice that “Interface” refers to the local port on the local router. and “Port ID (outgoing port)” refers to the port on the neighbor router.255.Cisco 200-120 Exam The two exhibited devices are the only Cisco devices on the network.252.255. Therefore there are only 2 available hosts in this network (22 – 2 = 2).255. The CDP information was received on port Serial0/0 of the Manchester router. F. Answer: A. as shown in the output ->.1. B. we learn that the IP address of the neighbor router is 10. Maybe the most difficult choice of this question is the answer E or F.1. QUESTION NO: 155 "Pass Any Exam.2. Any Time.actualtests.www. The CDP information was sent by port Serial0/0 of the London router.C.com 125 . The London router is a Cisco 2610.1." .1. The platform of the neighbor router is cisco 2610.1. C. The Manchester serial address is 10.

If you want to have the dynamic routing protocol used and have the static route be used only as a backup.0.0. "Pass Any Exam. you need to increase the AD of the static route so that it is higher than the dynamic routing protocol.0 D.0.0.2.16. link bandwidth D.0.0. link cost Answer: B Explanation: By default the administrative distance of a static route is 1.2.16.0 0.0 (next hop)” commands can be used to set the default gateway in a Cisco router. QUESTION NO: 156 Which parameter would you tune to affect the selection of a static route as a backup.actualtests.1 E.0.com 126 .16. ip default-gateway 0.0 B.2. link delay E.) A.0. QUESTION NO: 157 Refer to the exhibit.0. ip default-network 0.0 0.0.E Explanation: Both the “ip default-network” and “ip route 0. hop count B." . which two commands set the gateway of last resort to the default gateway? (Choose two.0.0 0. ip route 172.0 172.0.1 Answer: C.0 172.Cisco 200-120 Exam If IP routing is enabled. Any Time.0.0 0. ip route 0.0. meaning it will be preferred overall dynamic routing protocols.0.1 0.0.www. when a dynamic protocol is also being used? A.0. ip default-route 0.0 C.0. administrative distance C.0.0.

Cisco 200-120 Exam

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 interfacesin the range of this network will join OSPF.

QUESTION NO: 158
Refer to the exhibit.

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127

Cisco 200-120 Exam

The Lakeside Company has the internetwork in the exhibit. The administrator would like to reduce
the size of the routing table on the Central router. Which partial routing table entry in the Central
router represents a route summary that represents the LANs in Phoenix but no additional
subnets?
A. 10.0.0.0/22 is subnetted, 1 subnets
D 10.0.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
B. 10.0.0.0/28 is subnetted, 1 subnets
D 10.2.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
C. 10.0.0.0/30 is subnetted, 1 subnets
D 10.2.2.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
D. 10.0.0.0/22 is subnetted, 1 subnets
D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
E. 10.0.0.0/28 is subnetted, 1 subnets
D 10.4.4.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
F. 10.0.0.0/30 is subnetted, 1 subnets
D 10.4.4.4 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
Answer: D
Explanation:
The 10.4.0.0/22 route includes 10.4.0.0/24, 10.4.1.0/24, 10.4.2.0/24 and 10.4.3.0/24 networks
only.

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128

Cisco 200-120 Exam
QUESTION NO: 159
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
+ 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

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129

Cisco 200-120 Exam
QUESTION NO: 160
Before installing a new, upgraded version of the IOS, what should be checked on the router, and
which command should be used to gather this information? (Choose two.)
A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config
Answer: 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. Also running the new IOS may require more
RAM than the older one so we should check the available RAM too. We can check both with the
“show version” command.

QUESTION NO: 161
Which command reveals the last method used to powercycle a router?
A. show reload
B. show boot
C. show running-config
D. show version
Answer: D
Explanation:
Explanation:
The “show version” command can be used to show the last method to powercycle (reset) a router.

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130

Cisco 200-120 Exam

QUESTION NO: 162
Which command would you use on a Cisco router to verify the Layer 3 path to a host?
A. tracert address
B. traceroute address
C. telnet address
D. ssh address
Answer: B
Explanation:

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131

Cisco 200-120 Exam
In computing, 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 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); the sum of the mean times in each hop indicates the total time
spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost
more than twice, then the connection is lost and the route cannot be evaluated. Ping, on the other
hand, only computes the final round-trip times from the destination point.

QUESTION NO: 163
What information does a router running a link-state protocol use to build and maintain its
topological database? (Choose two.)
A. hello packets
B. SAP messages sent by other routers
C. LSAs from other routers
D. beacons received on point-to-point links
E. routing tables received from other link-state routers
F. TTL packets from designated routers
Answer: A,C
Explanation:
Neighbor discovery is the first step in getting a link state environment up and running. In keeping
with the friendly neighbor terminology, a Hello protocol is used for this step. The protocol will
define a Hello packet format and a procedure for exchanging the packets and processing the
information the packets contain.
After the adjacencies are established, the routers may begin sending out LSAs. As the term
flooding implies, the advertisements are sent to every neighbor. In turn, each received LSA is
copied and forwarded to every neighbor except the one that sent the LSA.

QUESTION NO: 164
Which statements describe the routing protocol OSPF? (Choose three.)
A. It supports VLSM.
B. It is used to route between autonomous systems.
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132

The configuration register is set to 0x2100. Flooding and calculation of the Dijkstra algorithm on a router is limited to changes within an area. E. Answer: A. A network administrator configures a new router and enters the copy startup-config running-config command on the router. When the router starts. It is simpler to configure than RIP v2. C.Cisco 200-120 Exam C. The configuration register is set to 0x2102. Answer: A "Pass Any Exam. E. The boot system flash command is missing from the configuration. It confines network instability to one area of the network.E Explanation: The OSPF protocol is based on link-state technology.com 133 ." . route summarization. D. Any Time. B. it enters the system configuration dialog as shown. What is the cause of the problem? A. The router is configured with the boot system startup command. QUESTION NO: 165 Refer to the exhibit. Variable Length Subnet Masks (VLSM). Areas are introduced to put a boundary on the explosion of link-state updates. OSPF uses flooding to exchange link-state updates between routers. It allows extensive control of routing updates. F. which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. and so forth. Any change in routing information is flooded to all routers in the network. It increases routing overhead on the network.actualtests.www. The network administrator powers down the router and sets it up at a remote location.C. OSPF has introduced new concepts such as authentication of routing updates. D. The network administrator failed to save the configuration.

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 Static route 1 Enhanced Interior Gateway Routing Protocol (EIGRP) summary route 5 External Border Gateway Protocol (BGP) 20 "Pass Any Exam. Administrative distance defines the reliability of a routing protocol. So everything configured was deleted.actualtests. This will make the “System Configuration Dialog” appear at the next reload. Any Time.www. QUESTION NO: 166 What is the default administrative distance of OSPF? A. 110 D. Note: We can tell the router to ignore the start-up configuration on the next reload by setting the register to 0×2142. 90 B." . The network administrator has made a mistake because the command “copy startup-config runningconfig” will copy the startup config (which is empty) over the running config (which is configured by the administrator).Cisco 200-120 Exam Explanation: The “System Configuration Dialog” appears only when no startup configuration file is found. 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.com 134 . 100 C. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value.

C. calculates shortest path D. Any Time. exchanges routing tables with neighbors C.D 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.actualtests.www. provides common view of entire topology B. utilizes event-triggered updates E." . 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 ->.Cisco 200-120 Exam 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 QUESTION NO: 167 Which characteristics are representatives of a link-state routing protocol? (Choose three. "Pass Any Exam.) A. utilizes frequent periodic updates Answer: A.com 135 .

168. C.168. The router will forward packets from R3 to R2 to R1 AND from R3 to R1. Any Time." . B. QUESTION NO: 168 Refer to the exhibit.www.Cisco 200-120 Exam Unlike Distance vector routing protocol (which utilizes frequent periodic updates). The router will forward packets from R3 to R1.10. The router will forward packets from R3 to R1 to R2. The router will forward packets from R3 to R2 to R1. Answer: C "Pass Any Exam. D.1? A.10. how will packets from a host within the 192.192/26 LAN be forwarded to 192.actualtests. Based on the exhibited routing table.com 136 . link-state routing protocol utilizes event-triggered updates (only sends update when a change occurs) ->.

QUESTION NO: 169 Refer to the exhibit.0. C-router is to be used as a "router-on-a-stick" to route between the VLANs.19. No further routing configuration is required. These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172.19.5) -> traffic to this network will be load-balancing.19. The hosts in the VLANs have been configured with the appropriate default gateway.168. Answer: D Explanation: Since all the same router (C-router) is the default gateway for all three VLANs.0.www.9 &192. All the interfaces have been properly configured and IP routing is operational. These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172.10. all traffic destined "Pass Any Exam.255 area 0 C.168.10.Cisco 200-120 Exam Explanation: From the routing table we learn that network 192.0 D.0 0.com 137 .0.0/30 is learned via 2 equal-cost paths (192. Any Time." . These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172.10.168.0 B. What is true about this configuration? A.3.0.actualtests.

" . no routing protocols need to be configured.bin (Not enough space on device) "Pass Any Exam. D. QUESTION NO: 170 Refer to the exhibit. the router asked “Erasing flash before copying? [confirm]” and the administrator confirmed (by pressing Enter) so the flash was deleted.l23-16a.com 138 . Any Time.Cisco 200-120 Exam to a different VLA will be sent to the C-router. Answer: C Explanation: During the copy process. The current IOS is deleted just because the administrator wants to do so. Flash memory on Cisco routers can contain only a single IOS image. B. C.actualtests.www. If the flash does not have enough space you will see an error message like this: %Error copying tftp://192. it must be the only IOS image in flash. Why is flash memory erased prior to upgrading the IOS image from the TFTP server? A.2. The router cannot verify that the Cisco IOS image currently in flash is valid.The C-router will have knowledge of all three networks since they will appear as directly connected in the routing table.168. the flash has enough space to copy a new IOS without deleting the current one. Erasing current flash content is requested during the copy dialog. Note: In this case.Since the C-router already knows how to get to all three networks.167/ c1600-k8sy-mz. In order for the router to use the new image as the default.

If you prefer not to use the CDP capability. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default." . use the cdp run commandin global configuration mode. not global. enable cdp B.5. disable it with the no cdp run command. Any Time.com 139 .The “cdp enable” command is an interface command. cdp enable C. where will the router send a packet destined for 10. According to the routing table. cdp run D.Cisco 200-120 Exam QUESTION NO: 171 Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices? A.actualtests. In order to reenable CDP. QUESTION NO: 172 Refer to the exhibit.1.65? "Pass Any Exam.www.

168.2 C. 10.255.240 D.252 E. Which address and mask combination represents a summary of the routes learned by EIGRP? A. 192.252 C.25.255. 10.255.255.25.1.25.Cisco 200-120 Exam A.240 F.252 Answer: C Explanation: The binary version of 20 is 10100. 10.255.2 B. "Pass Any Exam.168.255.5. Therefore the next-hop should be 10.25.255.com 140 . Any Time.1.www.64/29 & 10.0 255. 192. QUESTION NO: 173 Refer to the exhibit.3.28 255.3.actualtests.168.64/28.28 255.25.255.1.240 B.255.64/27 subnets but the “longest prefix match” algorithm will choose the most specific subnet mask -> the prefix “/29 will be chosen to route the packet.4 Answer: C Explanation: The destination IP address 10." .1.255.0 255.1.1. 192.5.255.168.3 ->.16 255.1.1.168.5.1. 10.2. 10.25. 192.255.4.3 D.168.65 belongs to 10. 192.16 255.1. 192.5.

168.1111 1111.168. The binary version of 24 is 11000.25.240. Note: From the output above. So. The binary version of 28 is 11100.240. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24).11110000) = 255.actualtests. B. "Pass Any Exam.www. Two interfaces have problems.255.24 + 192.168.25. Therefore the subnet mask is /28 (=1111 1111.240.20 + 192.16 255. The subnet mask is /28.1111 1111. QUESTION NO: 174 Refer to the exhibit.25.255.16 + 192.168.255. what is the operational status of the interfaces of R2 as indicated by the command output shown? A.25.Cisco 200-120 Exam The binary version of 16 is 10000. Assuming that the entire network topology is shown." . Any Time.com 141 .255.25. EIGRP learned 4 routes and we need to find out the summary of them: + 192.255.255. One interface has a problem. The interfaces are functioning correctly. The mask is 255.168.28 -> The increment should bE.the best answer should be 192. C.

www.com 142 .E Explanation: The following locations can be configured as a source for the IOS image: 1. Telnet server Answer: C. HTTP server E.Cisco 200-120 Exam D. QUESTION NO: 175 Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two. + TFTP server 3.Serial0/0 is down because it has been disabled using the “shutdown” command.) A. RAM B. + Flash (the default location) 2. "Pass Any Exam. (Please read the explanation of Question 4 for more information) QUESTION NO: 176 Refer to the exhibit.actualtests. Any Time. + ROM (used if no other source is found) 4. TFTP server F. NVRAM C. The operational status of the interfaces cannot be determined from the output shown." . flash memory D. Answer: C Explanation: The output shown shows normal operational status of the router’s interfaces.

1 D. QUESTION NO: 177 Refer to the exhibit.154.2 B. if the router ID has not been manually set.168.Cisco 200-120 Exam Given the output for this command.3 Answer: C Explanation: The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID. 172.154. 10. "Pass Any Exam. Any Time.1.1.1 C." .16.www. 10.com 143 .actualtests.5. 192.5. what router ID will OSPF use for this router? A.

0 Router(config-router)# network 192.Cisco 200-120 Exam What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.On the switch. Router(config)# router eigrp 100 Router(config-router)# network 192. B. Only one process number can be used on the same router. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E.10. QUESTION NO: 178 Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.) Router(config)# router ospf 1 A. where each subinterface is assigned a VLANand IP address for each VLAN.255.1 255.1 255. Any Time.20.255. Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192." .1.168.1 255. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192.255.E Explanation: The router will need to use subinterfaces.1.) A.com 144 .168.0 C.20. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F. Different process identifiers can be used to run multiple OSPF processes "Pass Any Exam. All OSPF routers in an area must have the same process ID.0 Router(config)# interface fastethernet 0/0. 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.actualtests.255.255.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192.168.168.0 D.1 Answer: B.255.168.10.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.www.168.0 Router(config-if)# no shut down B. C.

Answer: C. B.C Explanation: "Pass Any Exam. Router1 is acting as a TFTP server for other routers. C.www. Any Time.com 145 .Cisco 200-120 Exam D.) A.The valid process ID’s are shown below: Edge-B(config)#router ospf ? <1-65535>Process ID QUESTION NO: 179 Refer to the exhibit. The process number can be any number from 1 to 65. Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.D Explanation: Multiple OSPF processes can be configured on a router using multiple process ID’s.535. Answer: A." . E. D. Router1 cannot locate a valid IOS image in flash memory. Hello packets are sent to each neighbor to determine the processor identifier. For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server. E.actualtests. Cisco routers will first attempt to load an image from TFTP for management purposes.

TFTP server (netboot) c. Bootstrap code executed 3." . but there is no startup-config file. What can be determined about the router from the console output? "Pass Any Exam. Check for boot system commands (NVRAM) If boot system commands in startup-config a. use default fallback sequence to locate the IOS (Flash. If IOS is loaded. Startup-config filE. Run boot system commands in order they appear in startup-config to locate the IOS b. the router will use the default fallback sequence for locating the IOS and then it will enter setup mode or the setup dialogue.15 = startup-config in NVRAM 4. ROM (partial IOS) or keep retrying TFTP depending upon router model 5. Check Configuration Register value (NVRAM) which can be modified using the config-register command 0 = ROM Monitor mode 1 = ROM IOS 2 . POST (power on self-test) 2. TFTP. Any Time.actualtests. QUESTION NO: 180 Refer to the exhibit.www. [If boot system commands fail. Flash (sequential) b. ROM)?] If no boot system commands in startup-config use the default fallback sequence in locating the IOS: a.com 146 .Cisco 200-120 Exam The loading sequence of CISCO IOS is as follows: Booting up the router and locating the Cisco IOS 1.

one subinterface per VLAN F.actualtests. one IP network or subnetwork for each subinterface C. No configuration file was found in NVRAM.Cisco 200-120 Exam A. Router(config)# router ospf 0 B. Configuration file is normal and will load in 15 seconds.) A. D. No configuration file was found in the PCMCIA card.A short.168. the System Configuration Dialog will appear to ask if we want to enter the initial configuration dialog or not.thebryantadvantage.E Explanation: This scenario is commonly called a router on a stick.16. Router(config)# router ospf 1 C. subinterface encapsulation identifiers that match VLAN tags E. QUESTION NO: 181 Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three. subinterface numbering that matches VLAN tags Answer: B. Any Time.com/RouterOnAStickCCNACertificationExamTutorial. Router(config)# router ospf area 0 "Pass Any Exam. a management domain for each subinterface D.D. one physical interface for each subinterface B." . Answer: A Explanation: When no startup configuration file is found in NVRAM. well written article on this operation can be found here: http://www.) A. C.com 147 .www. B.0/24 to OSPF area 0? (Choose two. No configuration file was found in flash.htm QUESTION NO: 182 Which commands are required to properly configure a router to run OSPF and to add network 192.

0/24 C.0. from all the /24 routes it will choose the one with the lowest administrative distance. QUESTION NO: 183 A router receives information about network 192.10. a RIP update for network 192.0 0.10.0/24 with a local serial interface configured as the next hop Answer: A Explanation: When there is more than one way to reach a destination.168.255.168.0.0.0.254/24 B.Directly connected routes have an AD of 1 so this will be the route chosen.10.0. we need a wildcard in the “network” statement.255.0 255.168.Cisco 200-120 Exam D.10.168. the ranges from 1 to 65535 so o is an invalid number ->but To configure OSPF. not a subnet mask.www.10.First.0 0. a static route to network 192. a default route with a next hop address of 192.168.com 148 .1 F. Any Time.0/16 E.168.Next. a static route to network 192.16.actualtests.255 0 E.10.0/24 from multiple sources.0 area 0 Answer: B." .168. it will choose the best one based on a couple of things.E Explanation: In the router ospfcommand.16. meaning the most specific route. in this case the /24 routes willbe chosen over the /16 routes. a directly connected interface with an address of 192.168. it will choose the route that has the longest match.0/24 D. Router(config-router)# network 192. Router(config-router)# network 192.255 area 0 F. We also need to assgin an area to this process ->.168.So.168. Router(config-router)# network 192. What will the router consider the most reliable information about the path to that network? A.16. an OSPF update for network 192. QUESTION NO: 184 What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router? "Pass Any Exam.

16 D. Syntax Description maximum Maximum number of parallel routes that OSPF can install in a routing table. 8 C. show cdp neigbors B. Any Time. show users D. 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).www.Cisco 200-120 Exam A. meaning connections from your router so the answer should be A. use themaximum-pathscommand." . The question asks about “your active Telnet connections”. Command Default 8paths QUESTION NO: 185 Which command shows your active Telnet connections? A.com 149 . "Pass Any Exam. The range is from 1 to 16 routes. show session C.actualtests. unlimited Answer: B Explanation: maximum-paths (OSPF) To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support. 2 B.

stored in the topology table D. stored in the topology table Answer: C Explanation: EIGRP uses the Neighbor Table to list adjacent routers. QUESTION NO: 187 The network administrator cannot connect to Switch1 over a Telnet session. stored in the routing table B." . a backup route.actualtests. a backup route. Any Time. which is known as the Successor. stored in the routing table C. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination. "Pass Any Exam. The Feasible Successor is a backup route to a destination which is kept in the Topology Table.com 150 .www.Cisco 200-120 Exam QUESTION NO: 186 Which type of EIGRP route entry describes a feasible successor? A. a primary route. a primary route. although the hosts attached to Switch1 can ping the interface Fa0/0 of the router.

Cisco 200-120 Exam Given the information in the graphic and assuming that the router and Switch2 are configured properly." .255. Any Time. Switch1(config)# ip default-gateway 192. which of the following commands should be issued on Switch1 to correct this problem? A.www. Switch1(config)# interface fa0/1 "Pass Any Exam. Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full Switch1(config-if)# speed 100 E.168.24. Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login B. Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192.255.actualtests.1 D.168.0 C.com 151 .24.3 255.

The switch will need a different IOS code in order to support VLANs and STP. QUESTION NO: 188 Refer to the exhibit. Hence remote management of this switch is not possible unless VLAN1 "Pass Any Exam. Answer: B Explanation: Notice the line. D. Which of these statements correctly describes the state of the switch once the boot process has been completed? A. we know that connectivity. More VLANs will need to be created for this switch.www.However. are good. Speed. As FastEthernet0/12 will be the last to come up." .duplex.Cisco 200-120 Exam Switch1(config-if)# switchport mode trunk Answer: C Explanation: Since we know hosts can reach the router through the switch.actualtests. Remote access management of this switch will not be possible without configuration change. which says “Interface VLAN1. C. the ip default-gateway command must be used. B.com 152 . it will be blocked by STP. etc. for the switch itself to reach networks outside the local one. This shows that VLAN1 is shut down. Any Time. changed state to administratively down”.

but they are unable to communicate. incompatible encapsulation E. QUESTION NO: 189 Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated.com 153 .168. Since VLAN1 is the only interface shown in the output. A.1 And Interface Serial 1 of Router Brevard has 192.10. identify the fault on the Brevard router that is causing the lack of connectivity.2. Any Time." .www.168.actualtests. link reliability too low F. incorrect subnet mask D. QUESTION NO: 190 "Pass Any Exam.Cisco 200-120 Exam is brought back up. insufficient bandwidth C. incompatible IP address B. Given the partial configurations.11. These are from different network. you have to assume that no other VLAN interface has been configured with an IP Address. IPCP closed Answer: D Explanation: Because Interface Serial 0 of Atlanta Router has 192. The Atlanta router is known to have the correct configuration.

actualtests. issued the show ip route command.31. F. Answer: C Explanation: The default route or the static route was configured with incorrect next-hop ip address 172. B. what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.0 network. The correct IPaddress will be 172.www.0 0.Cisco 200-120 Exam Users on the 172.0. what is the cause of the failure? A.0. The network has not fully converged.0 172. and was able to ping the server.0. IProute 0.19.0.0. Any Time. A static route is configured incorrectly.17.22.0.0 area 0 "Pass Any Exam. Given the information in the partial configuration shown below. D. The network administrator connected to router Coffee via the console port. C.5.0.0 network cannot reach the server located on the 172. The networks attached to the new router do not appear in the routing tables of the other OSPF routers.18.2 QUESTION NO: 191 A network administrator is trying to add a new router into an established OSPF network. IP routing is not enabled. The FastEthernet interface on Coffee is disabled.0.22.22.31. The routing table on Coffee has not updated.0 network.2." . The neighbor relationship table is not correctly updated.com 154 .5.2 to reach server located on 172. E.22. Based on the output of the show ip route command and the topology shown in the graphic.18.0 255.

0. the correct syntax would have been “network 10.0. who are the other routers in our area? Router Link States (Area 1) Link IDADV RouterAgeSeq#ChecksumLink count 10.0.0.com 155 .11310.1131480x8000022C0x0043993 10. D.0.actualtests.0.255 area 0. Answer: A.In this specific example. Answer: C Explanation: When configuring OSPF. The network wildcard mask is configured improperly. The process id is configured improperly.0.www.0 0.0.D Explanation: r120#show ip ospf data OSPF Router with ID (10.0. It identifies the source of a Type 1 LSA. The network subnet mask is configured improperly. It should be the same on all routers in an OSPF routing instance. Any Time.0. It is created using the MAC Address of the loopback interface. The router automatically chooses the IP address of a loopback as the OSPF Router ID.” QUESTION NO: 192 Which two statements about the OSPF Router ID are true? (Choose two.11210. E. D.) A.Cisco 200-120 Exam A.0.0.0.0.120) (Process ID 1) Next." .0. C. the lowest IP address on the router becomes the OSPF Router ID.0. the mask used for the network statement is a wildcard mask similar to an access list. F.0. By default.0. B.0. C. The network number is configured improperly.Also the router will chose the highest loopback interface as its OSPF router ID (if available).1201520x800002400x0046CB1 We can see OSPF Router ID will beused as source of Type 1 LSA. "Pass Any Exam.11110. The OSPF area is configured improperly.11212460x800002340x009CAC1 10.1116000x8000023A0x0092B31 10. E.0. B.0. The AS is configured improperly.12010.0.

must have full routing information.Cisco 200-120 Exam QUESTION NO: 193 What are two benefits of using a single OSPF area network design? (Choose two. It increases LSA response times. The transit area cannot be a stub area." .com 156 . where this is not possible. You can also use virtual links to connect two parts of a partitioned backbone through a non-backbone area. It removes the need for virtual links. It reduces the types of LSAs that are generated.www. then many of these LSA types (Summary ASBR LSA. It reduces the number of required OSPF neighbor adjacencies. The area through which you configure the virtual link. external LSA.However. D. B. "Pass Any Exam.C Explanation: OSPF uses a LSDB (link state database) and fills this with LSAs (link state advertisement).) A. you can use a virtual link to connect to the backbone through a non-backbone area. All areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the backbone area (Area 0). known as a transit area. C. if all locations are in a single OSPF area this is not needed. E.Virtual links are not ideal and should really only be used for temporary network solutions or migrations. Answer: B. It is less CPU intensive for routers in the single area. etc) will not be used and will not be generated by any router. 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. Any Time.actualtests. In some cases.

actualtests.) A. 2-Way.) A. C.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/1368513. section 10. "Pass Any Exam. The states are (in order) Down. and Full. It routes over links rather than over networks. C. Any Time. Init. B. Exchange. It supports up to 2 instances of OSPFv3 over a common link.Cisco 200-120 Exam QUESTION NO: 194 When a router undergoes the exchange protocol within OSPF. B. It can support multiple IPv6 subnets on a single link." . Attempt. exstart state > full state > loading state > exchange state D. Those states are defined in the OSPF RFC 2328. It requires the use of ARP. It can support multiple IPv6 subnets on a single link.www.cisco. It supports up to 2 instances of OSPFv3 over a common link. loading state > exchange state > full state > exstart state Answer: B Explanation: When OSPF adjacency is formed.1. Loading.html QUESTION NO: 195 What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two. exstart state > exchange state > loading state > full state C. in what order does it pass through each state? A. It requires the use of ARP. Answer: B. Exstart. exstart state > loading state > exchange state > full state B.com 157 . a router goes through several state changes before it becomes fully adjacent with its neighbor. Reference:http://www. D.D Explanation: QUESTION NO: 196 What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.

0.html QUESTION NO: 197 What command sequence will configure a router to run OSPF and add network 10.configureterminal 3.1. Answer: B.1.255 Answer: C Explanation: SUMMARY STEPS 1.1.1.0.0 255. router ospf network 10.1.router ospfprocess-id 4.actualtests. router ospf area 0 network 10.0.255.com/article/2225270/cisco-subnet/ospfv3-for-ipv4-andipv6.255 area 0 E.255.1.255 C.networkworld.Cisco 200-120 Exam D.1. router ospf 1 network 10.0 255.1. Any Time. It routes over links rather than over networks.0.D Explanation: Here is a list of the differences between OSPFv2 and OSPFv3: Reference: http://www.com 158 . router ospf area 0 network 10.0 0.0 0.1.networkip-addresswildcard-maskareaarea-id 5. router ospf network 10.0.0 area 0 F.enable 2.0. router ospf 1 network 10.0 /24 to area 0? A.1.0 area 0 B.www.0.1." .0 0.0 0.1.255.255.1.end DETAILED STEPS "Pass Any Exam.0.255 area 0 D.1.

Any Time.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12-4t/iro12-4t-book/iro-cfg.actualtests. Step4 Networkip-addresswildcard-maskareaarea-id Example: Device(config-router)# network 192.16 0.168. Reference: http://www.3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface.0.129. Step3 router ospfprocess-id Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode.0.Cisco 200-120 Exam Command or Action Purpose Step1 Enable Example: Device> enable Enables privileged EXEC mode." .www.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673 "Pass Any Exam.com 159 .cisco. Step5 End Example: Device(config-router)# end Exits router configuration mode and returns to privileged EXEC mode. Step2 Configureterminal Example: Device# configure terminal Enters global configuration mode.

255.255.0 area 0 "Pass Any Exam.0 255. 2.www. 192. If the router Cisco returns the given output and has not had its router ID set manually. will include all interfaces into area 0? A.0.2.0. Any Time.255 area 0 B.255 0. the router will compare the IP addresses of each of the interfaces and choose the highest IP address from the loopbacks.0.1 B.1.Cisco 200-120 Exam QUESTION NO: 198 Refer to the exhibit.0 0.1. network 0.255. QUESTION NO: 199 What OSPF command.If more than one loopback interfaces are configured. 172.com 160 .255.0 area 0 C. network 255.0.actualtests.2 Answer: D Explanation: If a router-id is not configured manually in the OSPF routing process the router will automatically configure a router-id determined from the highest IP address of a logical interface (loopback interface) or the highest IPaddress of an active interface.0. 1. what value will OSPF use as its router ID? A.1 D.0.1.0.0.2." .16. network 0.168. when configured.1.1 C.

255) what the IP address is.Cisco 200-120 Exam D.0 255.asp?p=26919&seqNum=3 QUESTION NO: 200 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.255 area 0dictates that you do not care (255.com/articles/article.actualtests. Don't get this confused with area numbers. Example 3-1Configuring OSPF in a Single Area router ospf 1 network 0. which can be from 0 to 4.255. B.255. place it in area 0. C.255. It is locally significant and is used to identify an instance of the OSPF database. It is globally significant and is used to identify OSPF stub areas.0.www. The numbers you can use are from 1 to 65. or each router can have a different number-it just doesn't matter.535.255.2 billion.com 161 . IP Services QUESTION NO: 201 "Pass Any Exam. 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 addressin area 0.255.0 255.0. Any Time. 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.ciscopress.255.0. but if an IP address is enabled on any interface. Topic 5.0. D.255 area 0 Reference: http://www. The network commandnetwork 0. It is locally significant and must be the same throughout an area.

B. Answer: D Explanation: An address conflict occurs when two hosts use the same IP address.Cisco 200-120 Exam Which statement is correct regarding the operation of DHCP? A.html) QUESTION NO: 202 Refer to the exhibit. The address will not be assigned until the administrator resolves the conflict. the address is removed from the pool for an amount of time configurable by the administrator. E.com 162 . "Pass Any Exam.www. If an address conflict is detected. A DHCP client uses a gratuitous ARP to detect a DHCP server. (Reference: http://www. If an address conflict is detected. C. DHCP checks for conflicts using ping and gratuitous ARP. If an address conflict is detected. the address is removed from the pool. D. Any Time. F. If a conflict is detected. A DHCP server uses a gratuitous ARP to detect DHCP clients." .com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. During address assignment.cisco.actualtests. the address is removed from the pool and will not be reused until the server is rebooted. the address is removed from the pool and an administrator must resolve the conflict. A DHCP client uses a ping to detect address conflicts.

2. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. Answer: C Explanation: The “list 1 refers to the access-list number 1. Because of the addressing on interface FastEthernet0/1.www.0/24 and 172.Cisco 200-120 Exam What statement is true of the configuration for this network? A. B. B. D.1. C.) A. QUESTION NO: 203 Which statement describes the process of dynamically assigning IP addresses by the DHCP server? A.16. Answer: D Explanation: The DHCP lifecycle consists of the following: QUESTION NO: 204 What are two benefits of using NAT? (Choose two. a new request for an address must be made. Addresses are assigned for a fixed period of time." . Addresses are leased to hosts. at the end of the period. Addresses are permanently assigned so that the hosts uses the same address at all times. which periodically contact the DHCP server to renew the lease. the Serial0/0 interface address will not support the NAT configuration as shown. D.actualtests. NAT facilitates end-to-end communication when IPsec is enabled. ExternalRouter must be configured with static routes to networks 172. "Pass Any Exam. The number 1 referred to in the ip nat inside source command references access-list number 1. C.16.com 163 . B. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported. Any Time.0/24. NAT eliminates the need to re-address all hosts that require external access.

Answer: B.F Explanation: By not revealing the internal IPaddresses. D.Cisco 200-120 Exam C. NAT protects network security because private networks are not advertised. By allocating specific public IP addresses to inside hosts. NAT conserves addresses through host MAC-level multiplexing. source address and wildcard mask Answer: D Explanation: Standard ACL’s only examine the source IP address/mask todetermine if a match is "Pass Any Exam. Dynamic NAT facilitates connections from the outside of the network. source address and subnet mask D. including Internet Key Exchange (IKE). destination address and subnet mask C. E. NAT has to modify the source IP addresses in the packets -> E is not correct.actualtests.com 164 . destination address and wildcard mask B. 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. In order for IPsec to work with NAT we need to allow additional protocols. NAT eliminates the need to re-address the inside hosts -> B is correct. 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. Any Time. NAT accelerates the routing process because no modifications are made on the packets. NAT does conserve addresses but not through host MAC-level multiplexing. Encapsulating Security Payload (ESP) and Authentication Header (AH) -> more complex -> A is not correct.www. QUESTION NO: 205 On which options are standard access lists based? A. NAT adds some security to the inside network -> F is correct." . F.

standard B. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease. Which ACL can be used? A.sh tml QUESTION NO: 207 How does a DHCP server dynamically assign IP addresses to hosts? A.Extended ACL’s examine the source and destination address. Addresses are assigned for a fixed period of time. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. Answer: C Explanation: "Pass Any Exam. reflexive Answer: C Explanation: Explanation: We can use a dynamic access list to authenticate a remote user with a specific username and password. At the end of the period.cisco.actualtests. The configuration of dynamic ACL can be read here:http://www. C. Any Time.www. Addresses are permanently assigned so that the host uses the same address at all times. Addresses are leased to hosts. D. extended C. a new request for an address must be made.com/en/US/tech/tk583/tk822/technologies_tech_note09186a0080094524. as well as port information." . B. The authentication process is done by the router or a central access server such as a TACACS+ or RADIUS server. dynamic D. QUESTION NO: 206 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.Cisco 200-120 Exam made. and another address is then assigned.com 165 .

D. Only the IP detected by Gratuitous ARP is removed from the pool. The DHCP server returns these addresses to the address pool and reallocates them as necessary. Answer: A Explanation: An address conflict occurs when two hosts use the same IP address. even after the conflict is resolved.com 166 . The PC connects to the network with that leased IP address until the lease expires.cisco. This lease mechanism ensures that hosts that move or power off do not hold onto addresses that they do not need. Only the IP detected by Ping is removed from the pool. (Reference: http://www. the address is removed from the pool. During address assignment. The IP will be shown.html) QUESTION NO: 209 "Pass Any Exam. Any Time.Cisco 200-120 Exam DHCP works in a client/server mode and operates like any other client/server relationship. When a PC connects to a DHCP server. The address will not be assigned until the administrator resolves the conflict." . The address is removed from the pool until the conflict is resolved.www. the server assigns or leases an IP address to that PC. E. DHCP checks for conflicts using ping and gratuitous ARP. Which rule does the DHCP server use when there is an IP address conflict? A.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. C. QUESTION NO: 208 Refer to the exhibit. B. The host must contact the DHCP server periodically to extend the lease.actualtests. The address remains in the pool until the conflict is resolved. If a conflict is detected.

F Explanation: "Pass Any Exam. The routers cannot be connected from interface S0/0 to interface S0/0. With CHAP authentication. QUESTION NO: 210 Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two. E. The passwords do not match on the two routers.com 167 . D.Here. C. The Bigtime router is unable to authenticate to the Littletime router. What is the cause of the problem? A. B. D." . Configure IP address parameters from DHCP server to a host. Any Time. B.www. Perform host discovery used DHCPDISCOVER message. E. C. the configured passwords must be identical on each router. The routers cannot be configured to authenticate to each other.) A. one router must authenticate to another router.Cisco 200-120 Exam Refer to the exhibit. it is configured as little123 on one side and big123 on the other. F. Answer: C. The usernames are incorrectly configured on the two routers. Monitor IP performance using the DHCP server. Set the IP gateway to be used by the network. Provide an easy management of layer 3 devices. Answer: B Explanation: With CHAP authentication. Assign and renew IP address from the default pool. CHAP authentication cannot be used on a serial interface.actualtests.

0.1.0/16) and broadcast address (for example 23. QUESTION NO: 211 When a DHCP server is configured. IP address used by the interfaces E.Cisco 200-120 Exam 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). They require no inside or outside interface markings because addresses are statically defined. Answer: A. When try to assign these addresses to hosts.C Explanation: "Pass Any Exam. designated IP address to the DHCP server Answer: A. They allow connections to be initiated from the outside." . D. C. you will receive an error message saying that they can’t be assignable. IP address leased to the LAN D.0. They can be configured with access lists.0.2. network or subnetwork IP address B. which two IP addresses should never be assignable to hosts? (Choose two.) A. They are always present in the NAT table.) A.com 168 .B Explanation: Network or subnetwork IP address (for example 11. broadcast address on the network C. B.255/24) should never be assignable to hosts. QUESTION NO: 212 Which two statements about static NAT translations are true? (Choose two. Any Time.actualtests.www.DHCP servers assigns IP addresses from a pool of addresses and also assigns other parameters such as DNS and default gateways to hosts. to allow two or more connections to be initiated from the outside. manually assigned address to the clients F. It involves clients and a server operating in a client-server model.0/8 or 13.1.

QUESTION NO: 214 In GLBP.5E00. "Pass Any Exam. The active virtual gateway will reply with one of four possible virtual MAC addresses." . The GLBP member routers will reply with one of four possible burned in hardware addresses.com 169 . the virtual router’s MAC address is 0000. in which the MAC address range from 0005.Fxxx.www.This is typically done to allow incoming connections from the outside (Internet) to theinside. they are always present in the NAT table even if they are not actively in use. 0007. All GLBP member routers will reply in round-robin fashion.0c07.actualtests. 0000.Since these are static. + With HSRP version 2.AE01 C.Cisco 200-120 Exam Static NAT is to map a single outside IP addressto a single inside IP address.0C07. two or more devices support a virtual router with a fictitious MAC address and unique IP address.01A3 B. in which xxx is the HSRP group.0FFF. QUESTION NO: 213 What is a valid HSRP virtual MAC address? A. B. The active virtual gateway will reply with its own hardware MAC address. + With HSRP version 1.B400. Any Time. Note: Another case is HSRP for IPv6. the virtual MAC address if 0000. There are two version of HSRP. D. in which xx is the HSRP group.73A0. 0000.B301 Answer: C Explanation: With HSRP. which router will respond to client ARP requests? A. 0007.0000 through 0005.5E00.0C9F. C.AC15 D.73A0.ACxx .

B.com 170 . F.Cisco 200-120 Exam Answer: A Explanation: One disadvantage of HSRP and VRRP is that only one router is in use. D. GLBP supports clear text and MD5 password authentication between GLBP group members. E. 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. GLBP supports up to eight virtual forwarders per GLBP group. GLBP can load share traffic across a maximum of four routers. It monitors traffic flow and link utilization. B. "Pass Any Exam. Any Time. C. QUESTION NO: 216 What are three benefits of GLBP? (Choose three. GLBP supports up to 1024 virtual routers.www. The AVG is responsible for replying ARP requests from hosts/clients.) A. GLBP is an open source standardized protocol that can be used with multiple vendors. Gateway Load Balancing Protocol (GLBP) can use of up to four routers simultaneously. First a GLBP group must elect an Active Virtual Gateway (AVG).actualtests. It thwarts man-in-the-middle attacks. 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)." . GLBP elects two AVGs and two standby AVGs for redundancy. However. In GLBP. It ensures the best VRRP router is the virtual router master for the group. QUESTION NO: 215 Which statement describes VRRP object tracking? A. It causes traffic to dynamically move to higher bandwidth links. D. C. other routers must wait for the primary to fail because they can be used. there is still only one virtual IP address but each router has a different virtual MAC address.

For example. HSRP supports only clear-text authentication. HSRP supports up to 255 groups per interface. Enabling Syslog on a router automatically enables NTP for accurate time stamping. Answer: C. E.0C07. Utilizing Syslog improves network performance.B.www. E. Any Time.actualtests.AC0A. B.FXXX (XXX: HSRP group in hexadecimal). F.0C07.D. D.Cisco 200-120 Exam Answer: B. enabling an administrative form of load balancing. A Syslog server provides the storage space necessary to store log files without using router disk space.F Explanation: The virtual MAC address of HSRP version 1 is 0000. The Syslog server automatically notifies the network administrator of network problems.com 171 . HSRP version 2 uses a virtual MAC address of 0000. There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages. The virtual IP address and virtual MA+K44C address are active on the HSRP Master router. Answer: A." . The HSRP virtual IP address must be on a different subnet than the routers' interfaces on the same LAN. HSRP group 10 uses the HSRP virtual MAC address of 0000.D.) A. D. A Syslog server helps in aggregation of logs and alerts.E Explanation: QUESTION NO: 217 Which three statements about HSRP operation are true? (Choose three.0C9F. The HSRP default timers are a 3 second hello interval and a 10 second dead interval. QUESTION NO: 218 Which three statements about Syslog utilization are true? (Choose three. F. The HSRP virtual IP address must be the same as one of the router's interface addresses on the LAN. where xx is the HSRP group number in hexadecimal based on the respective interface.) A. C.ACxx. B.F "Pass Any Exam. C.

System logging is a method of collecting messages from devices to a server running a syslog daemon. warning D." Syslog messages can be sent via UDP (port 514) and/or TCP (typically. In general.actualtests.2(18)SXF contains about 90 SNMP trap notification messages. a Cisco Catalyst 6500 switch running Cisco IOS Software Release 12. such as SSL wrappers. A syslog service accepts messages and stores them in files." "Syslog daemon.www. debug F.com/c/en/us/products/collateral/services/highavailability/white_paper_c11-557812. The Syslog receiver is commonly called "syslogd.cisco.A Syslog server provides the storage space necessary to store log files without using router disk space. this data is typically sent in clear text over the network. informational B. While there are some exceptions. Cisco devices can send their log messages to a UNIX-style syslog service. or prints them according to a simple configuration file.Logging to a central syslog server helps in aggregation of logs and alerts.com 172 ." .F Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description "Pass Any Exam. there are significantly more Syslog messages available within IOS as compared to SNMP Trap messages. What are three message types that will be sent to the Syslog server? (Choose three.D. port 5000). emergency C." or "Syslog server. critical E. but has more than 6000 Syslog event messages.Cisco 200-120 Exam Explanation: The Syslog sender sends a small (less than 1KB) text message to the Syslog receiver. error Answer: B.) A. Any Time.html QUESTION NO: 219 A network administrator enters the following command on a router: logging trap 3. Reference:http://www. For example.

all the logging of emergencies. that level and all the higher levels will be logged.www. by using the “logging trap 3 command." . local6 D. For example. but significant.Cisco 200-120 Exam 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. Any Time.actualtests.com 173 . local7 Answer: D "Pass Any Exam. local5 C. alerts. critical. conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “loggingtrap level” command. QUESTION NO: 220 What is the default Syslog facility level? A. local4 B. will be logged. and errors.

service timestamps log datetime msec Answer: B Explanation: Enable millisecond (msec) timestamps usingthe service timestamps command: router(config)#servicetimestamps debug datetime msec.mmm. most Cisco devices provide options to change the facility level from their default value.actualtests.asp?p=426638 QUESTION NO: 221 What command instructs the device to timestamp Syslog debug messages in milliseconds? A.com/articles/article. The time-stamp format fordatetimeisMMM DD HH:MM:SS. router(config)#service timestamps log datetime msecThe “service timestamps debug”. in the formatHH:DD:MM:SS.MMis the minute. Moreover. andSSis the second. the system includes milliseconds in the time stamp. CatOS switches.ciscopress.DDis the date. Cisco IOS devices.HHis the hour (in 24-hour notation). service timestamps debug datetime msec<input type C. service timestamps debug datetime localtime<input type D. Any Time. whereMMMis the month.com 174 . where . QUESTION NO: 222 Refer to the exhibit.www. "Pass Any Exam. and VPN 3000 Concentrators use facility local7 while Cisco PIX Firewalls use local4 to send syslog messages. service timestamps log datetime localtime<input type B." . With the additional keywordmsec. Reference: http://www. command configures the system to apply a time stamp to debugging messages.mmmis milliseconds.Cisco 200-120 Exam Explanation: By default.

causing the EIGRP adjacency to go down.This can only be done byissuing the shutdown command. to managing systems. Answer: C Explanation: The first lines of the message show that a configuration change was made." . and that the fa0/1 interface changed to a state of administratively down. you must define the relationship between the manager and the agent. A shut command was executed on interface Fa0/1. Interface Fa0/1 has become error disabled.www. "Pass Any Exam.com 175 . To enable the SNMP agent.) A. manager Answer: A. Cisco Nexus 1000V supports the agent and MIB. Any Time. agent C. causing the EIGRP adjacency to go down. QUESTION NO: 223 What are three components that comprise the SNMP framework? (Choose three. The EIGRP neighbor on Fa0/1 went down due to a failed link. causing the adjacency to go down. AES E. as needed.actualtests. supervisor F. set D. MIB B.The last line indicates that this caused an EIGRP neighbor adjacency to go down.Cisco 200-120 Exam What is the cause of the Syslog output messages? A. SNMP is defined in RFCs 3411 to 3418. The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process. B.B. C.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. •An SNMP agent—The software component within the managed device that maintains the data for the device and reports these data. D. •A managed information base (MIB)—The collection of managed objects on the SNMP agent.

Notice C. Warning Answer: A.C." . QUESTION NO: 225 "Pass Any Exam. Alert D.D. errors.com 176 . critical.actualtests. but significant. alerts. all the logging of emergencies.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/4_0_4_s_v_1_3/system_ management/configuration/guide/n1000v_system/n1000v_system_10snmp. Error E.www. conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “logging trap level” command. Any Time.html QUESTION NO: 224 What levels will be trapped if the administrator executes the command router(config)# logging trap 4 (Choose four) A. warnings will be logged. For example. by using the “logging trap 4 command.cisco.Cisco 200-120 Exam Reference: http://www. that level and all the higher levels will be logged. Emergency B.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.

MAC address tracking. •SNMPv2c—The community-string based Administrative Framework for SNMPv2. restarts. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic). Reference: http://www.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/121_9_ea1/configuration/guide/scg/swsnmp.actualtests. or other significant events. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.www. capture Answer: C Explanation: An agent can send unsolicited traps to the manager. Traps can mean improper user authentication. link status (up or down). response B. community strings Answer: D Explanation: SNMP Versions Cisco IOS software supportsthe following versions of SNMP: •SNMPv1—The Simple Network Management Protocol: A Full Internet Standard. trap D. HMAC-SHA C.) Securityis based on community strings. and uses the community-based security model of SNMPv1. get C. defined in RFC 1157.html QUESTION NO: 226 What authentication type is used by SNMPv2? A. loss of connection to a neighbor. and RFC 1906.cisco. closing of a TCP connection. CBC-DES D. "Pass Any Exam.com 177 .Cisco 200-120 Exam What SNMP message alerts the manager to a condition on the network? A. HMAC-MD5 B. RFC 1905. SNMPv2c (the "c" stands for "community") is an Experimental Internet Protocol defined in RFC 1901. Traps are messages alerting the SNMP manager to a condition on the network. Any Time." .

www. v2c noAuthNoPriv Community String No Uses a community string match for authentication." . Provides DES 56-bit encryption in addition to authentication based on the CBC-DES (DES-56) standard. v3 authNoPriv MD5 or SHA No Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. v3 noAuthNoPriv Username No Uses a username match for authentication. Any Time. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275.com/c/en/us/td/docs/ios/12_2/configfun/configuration/guide/ffun_c/fcf014.cisco. Reference: http://www.Cisco 200-120 Exam •SNMPv3—Version 3 of SNMP. v3 authPriv MD5 or SHA DES Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. SNMP Security Models and Levels Model Level Authentication Encryption What Happens v1 noAuthNoPriv Community String No Uses a community string match for authentication.com 178 .actualtests. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network.html "Pass Any Exam.

reducing their utility to that of a network monitor. SNMPv3 was issued as a set of Proposed Standards in January 1998. Any Time. it is possible for nonauthorized users to exercise SNMP network management functions. SNMPv2 added the GetBulk protocol message to SNMP. InformRequest The InformRequest message allows NMS stations to share trap information. QUESTION NO: 228 Which three are the components of SNMP? (Choose three) A. SNMPv2 added the Inform protocol message to SNMP. It is also possible for nonauthorized users to eavesdrop on management information as it passes from managed systems to the management system. B. Answer: A.Cisco 200-120 Exam QUESTION NO: 227 Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three.) A. SNMPv3 added the Inform protocol message to SNMP.actualtests. -> C is correct. -> E is correct. 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. Note: These two messages are carried over SNMPv3. SNMPv3 added the GetBulk protocol messages to SNMP. GetBulkRequest allows an agent to respond with as much information as will fit in the response PDU. SNMPv2 added the GetNext protocol message to SNMP. MIB "Pass Any Exam. -> A is correct.C. Agents that cannot provide values for all variables in a list will send partial information. Without authentication. D.) InformRequest messages are generally used between NMS stations.E Explanation: SNMPv1/v2 can neither authenticate the source of a management message nor provide encryption. E. Because of these deficiencies." . (Traps are issued by SNMP agents when a device change occurs. not between NMS stations and agents. many SNMPv1/v2 implementations are limited to simply a readonly capability.com 179 . C.www. F. SNMPv3 enhanced SNMPv2 security features. To correct the security deficiencies of SNMPv1/v2. no network control applications can be supported.

The logging buffer . Flash B. SNMP Manager C. The SNMP agent is the software component within the managed device that maintains the data for the device and reports these data. Set Answer: A. Any Time. The Management Information Base (MIB) is a virtual information storage area for network management information. To enable the SNMP agent on a Cisco routing device. SysLog Server D. SNMP provides a standardized framework and a common language used for the monitoring and management of devices in a network. 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. A variety of network management applications are available for use with SNMP. The term NMS can be applied to either a dedicated device used for network management.B.www. which consists of collections of managed objects. SNMP Agent E. as needed. or switch).RAM C. QUESTION NO: 229 What are the Popular destinations for syslog messages to be saved? (Choose three) A. The most common managing system is called a Network Management System (NMS). The console terminal D." . access server. or the applications used on such a device. you must define the relationship between the manager and the agent. to managing systems.D Explanation: SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents.actualtests. These features range from simple command-line applications to feature-rich graphical user interfaces (such as the CiscoWorks2000 line of products). The agent and MIB reside on the routing device (router. Other terminals "Pass Any Exam.Cisco 200-120 Exam B.com 180 .

such as the logging buffer (on RAM).actualtests.com 181 .Cisco 200-120 Exam E. We can configure this feature with the commandlogging file flash:filename.C. switches send the output from system messages and debug privileged EXEC commands to a logging process. Emergencies B. The logging process controls the distribution of logging messages to various destinations.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. Critical D. The process also sends messages to the console. Errors E. If you specify a level with the "Pass Any Exam. conditions exist 6 informational Informational messages 7 debugging Debugging messages The highest level is level 0 (emergencies).C. Syslog server Answer: B. Note: Syslog messages can be written to a file in Flash memory although it is not a popular place to use. terminal lines (console terminal). QUESTION NO: 230 Syslog was configured with a level 3 trap.www. but significant. Warnings Answer: A." . Alerts C.E Explanation: By default. Which 3 types of logs would be generated (choose four) A. The lowest level is level 7. Any Time. depending on your configuration. or a UNIX syslog server.B.

Any Time.B Explanation: A TRAP is a SNMP message sent from one application to another (which is typically on a remote host). Error Detection Answer: A. INFORM C. The big problem with TRAPs is that they’re unacknowledged so you don’t actually know if the remote application received your oh-so-important message to it.com 182 .C. that level and all the higher levels will be displayed. QUESTION NO: 231 What are the alert messages generated by SNMP agents called? A.D Explanation: Cisco IOS software supports the following versions of SNMP: "Pass Any Exam. which is nothing more than an acknowledged TRAP. has been noticed. TRAP B. critical. Message Integrity B. GET D. alerts.www. etc. QUESTION NO: 232 Which three features are added in SNMPv3 over SNMPv2? A. E. Compression C. by using the “logging console warnings” command. Encryption E. For example. Authentication D. SNMPv2 PDUs fixed this by introducing the notion of an INFORM. errors. SET Answer: A. warnings will be displayed. Their purpose is merely to notify the other application that something has happened." . all the logging of emergencies.Cisco 200-120 Exam “logging console level” command.actualtests.

+ SNMPv3 – Version 3 of SNMP. Standby Router Answer: B Explanation: Members of a GLBP group elect one gateway to be the active virtual gateway (AVG) for that group. who is responsible for the ARP request? A." . AVG C.Cisco 200-120 Exam + SNMPv1 – The Simple Network Management Protocol: A Full Internet Standard. Each gateway assumes responsibility for forwarding packets sent to the virtual MAC address assigned to it by the AVG. – Authentication: Determining that the message is from a valid source.com 183 . + SNMPv2c – The community-string based Administrative Framework for SNMPv2. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. and RFC 1906. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic).) Security is based on community strings. These gateways are known as active virtual forwarders (AVFs)for their virtual MAC address. AVF B. SNMPv2c (the “c” stands for “community”) is an Experimental Internet Protocol defined in RFC 1901. Active Router D. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098. The AVG is responsible for answering Address Resolution Protocol (ARP) requests for the virtual "Pass Any Exam. The security features provided in SNMPv3 are as follows: – Message integrity: Ensuring that a packet has not been tampered with in transit. Other group members provide backup for the AVG in the event that the AVG becomes unavailable. and uses the community-based security model of SNMPv1. RFC 1905.www. The AVG assigns a virtual MAC address to each member of the GLBP group. Any Time. QUESTION NO: 233 In a GLBP network.actualtests. defined in RFC 1157. – Encryption: Scrambling the contents of a packet prevent it from being learned by an unauthorized source.

The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.html Topic 6. E. "Pass Any Exam.Cisco 200-120 Exam IP address. Answer: C. B. trunk ports. The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN. Which two statements are true? (Choose two.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp." . + A secure port cannot be a destination port for Switched Port Analyzer (SPAN). + If any type of port security is enabled on the access VLAN. When dynamic MAC address learning is enabled on an interface. The network administrator can apply port security to EtherChannels. + When a voice VLAN is configured on a secure port that is also configured as a sticky secure port. D. Network Device Security QUESTION NO: 234 A network administrator needs to configure port security on a switch. + A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group. Any Time. + You cannot configure static secure or sticky secure MAC addresses on a voice VLAN. + When you enable port security on an interface that is also configured with a voice VLAN.actualtests.www. and all addresses seen on the access VLAN (to which the port belongs) are learned as sticky secure addresses. or 802. dynamic port security is automatically enabled on the voice VLAN. up to the maximum defined. all addresses seen on the voice VLAN are learned as dynamic secure addresses. Reference: http://www. Load sharing is achieved by the AVG replying to the ARP requests with different virtual MAC addresses. you must set the maximum allowed secure addresses on the port to at least two.D Explanation: Follow these guidelines when configuring port security: + Port security can only be configured on static access ports. The network administrator can apply port security to dynamic access ports.com 184 . C.cisco.1Q tunnel ports.) A. + A secure port cannot be a dynamic access port. the switch can learn new addresses.

1_19_ea1/config uration/guide/swtrafc." .html) QUESTION NO: 235 DRAG DROP Drag the security features on the left to the specific security risks they help protect against on the right.www. + The protect and restrict options cannot be simultaneously enabled on an interface.) Answer: Explanation: "Pass Any Exam. (Not all options are used.actualtests.com 185 .com/en/US/docs/switches/lan/catalyst3550/software/release/12. Any Time.Cisco 200-120 Exam + The switch does not support port security aging of sticky secure MAC addresses.cisco. (Reference: http://www.

the port is to drop frames from this device.actualtests.com 186 . and then observes the output from these two show "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 236 Refer to the exhibit. 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. Any Time. If any other device is detected.www." . The administrator configured the interface and tested it with successful pings from PC_A to RouterA.

configure the interface mode as the access mode Second. Any Time. The port security configuration needs to be saved to NVRAM before it can become active.actualtests. Port security needs to be configured to shut down the interface in the event of a violation. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two. you should perform the following configurations in the interface mode: First.com 187 . F. 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.Cisco 200-120 Exam commands. "Pass Any Exam.D Explanation: From the output we can see that port security is disabled so this needs to be enabled. C. QUESTION NO: 237 Which set of commands is recommended to prevent the use of a hub in the access layer? A.Also.) A. Port security needs to be enabled on the interface.www." . switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 C. D. switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1 Answer: C Explanation: This question is to examine the layer 2 security configuration. E. enable the port security and set the maximum number of connections to 1. Port security interface counters need to be cleared before using the show command. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1 B. switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 D. B. Answer: B. In order to satisfy the requirements of this question. Port security needs to be globally enabled. Port security needs to be configured to allow only one learned MAC address.

Cisco 200-120 Exam

QUESTION NO: 238
How does using the service password-encryption command on a router provide additional
security?
A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing
exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router
Answer: B
Explanation:
By using this command, all the (current and future) passwords are encrypted. This command is
primarily useful for keeping unauthorized individuals from viewing your password in your
configuration file

QUESTION NO: 239
Refer to the exhibit.

Statements A, B, C, and D of ACL 10 have been entered in the shown order and applied to
interface E0 inbound, to prevent all hosts (except those whose addresses are the first and last IP
of subnet 172.21.1.128/28) from accessing the network. But as is, the ACL does not restrict
anyone from the network. How can the ACL statements be re-arranged so that the system works

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188

Cisco 200-120 Exam
as intended?
A. ACDB
B. BADC
C. DBAC
D. 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, even if a more specific of better match is found later on in theaccess list.So, it it best to
begin with the most specific entries first, in this castthe two hosts in line C and D.Then, include the
subnet (B) and then finally the rest of the traffic (A).

QUESTION NO: 240
Refer to the exhibit.

An attempt to deny web access to a subnet blocks all traffic from the subnet. Which interface
command immediately removes the effect of ACL 102?

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189

Cisco 200-120 Exam
A. no ip access-class 102 in
B. no ip access-class 102 out
C. no ip access-group 102 in
D. no ip access-group 102 out
E. no ip access-list 102 in
Answer: D
Explanation:
The “ip access-group” is used toapply and ACL to an interface.From the output shown, we know
that the ACL is applied to outbound traffic, so “no ip access-group 102 out” will remove the effect
of this ACL.

QUESTION NO: 241
Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon
receipt of a BPDU?
A. BackboneFast
B. UplinkFast
C. Root Guard
D. BPDU Guard
E. BPDU Filter
Answer: D
Explanation:
We only enable PortFast feature on access ports (ports connected to end stations). 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.
With BPDU Guard, when a PortFast receives a BPDU, it will be shut down to prevent a loop.

QUESTION NO: 242
When you are troubleshooting an ACL issue on a router, which command would you use to verify
which interfaces are affected by the ACL?
A. show ip access-lists
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190

Cisco 200-120 Exam
B. show access-lists
C. show interface
D. show ip interface
E. list ip interface
Answer: D
Explanation:
Incorrect answer:
show ip access-lists does not show interfaces affected by an ACL.

QUESTION NO: 243 CORRECT TEXT
A network associate is adding security to the configuration of the Corp1 router. The user on host C
should be able to use a web browser to access financial information from the Finance Web Server.
No other hosts from the LAN nor the Core should be able to use a web browser to access this
server. Since there are multiple resources for the corporation at this location including other
resources on the Finance Web Server, all other traffic should be allowed.
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. No other hosts will have web access to the
Finance Web Server. All other traffic is permitted.
Access to the router CLI can be gained by clicking on the appropriate host.
All passwords have been temporarily set to "cisco".
The Core connection uses an IP address of 198.18.196.65.
The computers in the Hosts LAN have been assigned addresses of 192.168.33.1 192.168.33.254
- host A 192.168.33.1
- host B 192.168.33.2
- host C 192.168.33.3
- host D 192.168.33.4
The servers in the Server LAN have been assigned addresses of 172.22.242.17 - 172.22.242.30.
The Finance Web Server is assigned an IP address of 172.22.242.23.

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191

Cisco 200-120 Exam

Answer: Select the console on Corp1 router
Configuring ACL
Corp1>enable
Corp1#configure terminal
comment: To permit only Host C (192.168.33.3){source addr} to access finance server address
(172.22.242.23) {destination addr} on port number 80 (web)
Corp1(config)#access-list 100 permit tcp host 192.168.33.3 host 172.22.242.23 eq 80
comment: To deny any source to access finance server address (172.22.242.23) {destination
addr} on port number 80 (web)
Corp1(config)#access-list 100 deny tcp any host 172.22.242.23 eq 80
comment: To permit ip protocol from any source to access any destination because of the implicit
deny any any statement at the end of ACL.
Corp1(config)#access-list 100 permit ip any any
Applying the ACL on the Interface
comment: Check show ip interface brief command to identify the interface type and number by
checking the IP address configured.
Corp1(config)#interface fa 0/1
If the ip address configured already is incorrect as well as the subnet mask. This should be
corrected in order ACL to work
type this commands at interface mode :
no ip address 192.x.x.x 255.x.x.x (removes incorrect configured ipaddress and subnet mask)
Configure Correct IP Address and subnet mask:
ip address 172.22.242.30 255.255.255.240 ( range of address specified going to server is given as
172.22.242.17 - 172.22.242.30 )
Comment: Place the ACL to check for packets going outside the interface towards the finance web
server.
Corp1(config-if)#ip access-group 100 out

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192

Cisco 200-120 Exam
Corp1(config-if)#end
Important: To save your running config to startup before exit.
Corp1#copy running-config startup-config
Verifying the Configuration:
Step1: show ip interface brief command identifies the interface on which to apply access list.
Step2: Click on each host A, B, C, & D. Host opens a web browser page, Select address box of
the web browser and type the ip address of finance web server (172.22.242.23) to test whether it
permits /deny access to the finance web Server.
Step 3: Only Host C (192.168.33.3) has access to the server. If the other host can also access
then maybe something went wrong in your configuration.Check whether you configured correctly
and in order.
Step 4: If only Host C (192.168.33.3) can access the Finance Web Server you can click on NEXT
button to successfully submit the ACL SIM.

QUESTION NO: 244
Refer to exhibit.

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193

Answer: C Explanation: The login keyword has been set.actualtests. The console password is missing. "Pass Any Exam." .www. An ACL is blocking Telnet access. What is the cause of this failure? A. The vty password is missing.Cisco 200-120 Exam A network administrator cannot establish a Telnet session with the indicated router.com 194 . C. Any Time. B. D. but none set” message to users trying to telnet to this router.This will result in the “password required. but not password. A Level 5 password is not set.

access-list 2500 deny tcp any host 192. QUESTION NO: 247 A network administrator is configuring ACLs on a Cisco router.149.www. access-list 110 permit ip any any B.) "Pass Any Exam. would you use to accomplish this task? (Choose two.168. You can apply only one access list on any interface.146. when combined.255 C.Cisco 200-120 Exam QUESTION NO: 245 Which statement about access lists that are applied to an interface is true? A.actualtests. access list 101 deny tcp any host 192.0. You can place as many access lists as you want on any interface. B. to allow traffic from hosts on networks 192." .148.0. Which two ACL statements.0. 192.168. 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 QUESTION NO: 246 Which item represents the standard IP ACL? A. Answer: C Explanation: We can have only 1 access list per protocol.168. You can apply multiple access lists with the same protocol or in different directions.0 only.1.168.168. You can configure one access list.com 195 .168.0.0.1 D.147. D.1. per direction and per interface.168. per direction.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. access-list 50 deny 192.1 0. 192. Any Time.1. and 192. per Layer 3 protocol. C.

168. Answer: D.actualtests.149.147.255” would allow only the 192.0.149.255 C.168. and “access-list 10 permit ip 192.255 B.168.168.0 0.255. Configure a virtual terminal password and login process.Cisco 200-120 Exam A.255 D.0 0.147.146. Physically secure the interface.146.0 0. B.0 and 192. E.168.168.168.) A.1.255.0 0. access-list 10 permit ip 192.0 networks. To apply an access list to a virtual terminal interface we must use the “access-class” command. access-list 10 permit ip 192. Enter an access list and apply it to the virtual terminal interfaces using the access-class command.148.1. access-list 10 permit ip 192.146.com 196 .0 and 192. 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.C Explanation: “access-list 10 permit ip 192.E Explanation: It is a waste to administratively shut down the interface.168. "Pass Any Exam.0 255.0. access-list 10 permit ip 192.146.0.168.0. D.168.0 0.168.255” would allow only the 192.0 Answer: A.0.1.0 0.1. C. access-list 10 permit ip 192.www.148. The “access-group” command is only used to apply an access list to a physical interface -> C is not correct.146.148. QUESTION NO: 248 What can be done to secure the virtual terminal interfaces on a router? (Choose two.0 0.0. Moreover.0.255 F.168. Any Time.255.0 networks.255 E." . Administratively shut down the interface. someone can still access the virtual terminal interfaces via other interfaces -> We cannot physically secure a virtual interface because it is “virtual” ->. access-list 10 permit ip 192.255.0.

actualtests. Any Time. SW1#show switchport port-security interface FastEthernet 0/12 Answer: C.www. SW1#show running-config D.) A.com 197 . "Pass Any Exam." . SW1#show port-secure interface FastEthernet 0/12 B. An example of the output of “show port-security interface” command is shown below: QUESTION NO: 250 Refer to the exhibit.D Explanation: Explanation: We can verify whether port security has been configured by using the “show running-config” or “show port-security interface” for more detail. SW1#show switchport port-secure interface FastEthernet 0/12 C.Cisco 200-120 Exam QUESTION NO: 249 Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? (Choose two. SW1#show port-security interface FastEthernet 0/12 E.

C.www.00bb. If you limit the "Pass Any Exam.) A. 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.FFFF. Any Time.aaaa will be forwarded out fa0/1. You can use port security with dynamically learned and static MAC addresses to restrict a port's ingress traffic by limiting the MAC addresses that are allowed to send traffic into the port." . F.bbbb. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1.actualtests. B. All frames arriving on 2950Switch with a destination of 0000. will be forwarded out fa0/1. the port does not forward ingress traffic that has source addresses outside the group of defined addresses. E. The MAC address table will now have an additional entry of fa0/1 FFFF.D Explanation: The configuration shown here is an example of port security. the first learned MAC address of 2950Switch.00aa.com 198 . Only frames from source 0000.Cisco 200-120 Exam The following commands are executed on interface fa0/1 of 2950Switch. This frame will be discarded when it is received by 2950Switch. D.FFFF. Only host A will be allowed to transmit frames on fa0/1. What two functions will occur when this frame is received by 2950Switch? (Choose two. When you assign secure MAC addresses to a secure port. specifically port security using sticky addresses. Answer: B.

A dynamically learned MAC address is saved in the VLAN database. When entering this command.com 199 . Port security with sticky MAC addresses retains dynamically learned MAC addresses during a link-down condition. Troubleshooting QUESTION NO: 252 DRAG DROP Drag each category on the left to its corresponding router output line on the right.Cisco 200-120 Exam number of secure MAC addresses to one and assign a single secure MAC address. QUESTION NO: 251 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. C. "Pass Any Exam. Port security with sticky MAC addresses provides many of the same benefits as port security with static MAC addresses. Each router output line is the result of a show ip interface command." . Not all categories are used. the device attached to that port has the full bandwidth of the port. Topic 7. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received. Any Time. the command switchport port-security mac-address sticky enables sticky learning. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.www. B. A dynamically learned MAC address is saved in the running-configuration file. the interface converts all the dynamic secure MAC addresses to sticky secure MAC addresses. D. A dynamically learned MAC address is saved in the startup-configuration file. E. but sticky MAC addresses can be learned dynamically.actualtests. Answer: B Explanation: In the interface configuration mode.

Cisco 200-120 Exam Answer: Explanation: A simple way to find out which layer is having problem is to remember this rule: “the first statement is for Layer 1. For example. both layers are down so the problem belongs to Layer 1. from the output “Serial0/1 is up. "Pass Any Exam. In this case. 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.com 200 ." . Any Time. There is only one special case with the statement “…. line protocol is down”.www. For the statement “Serial0/1 is down.actualtests. is administrator down. we know that the port is currently disabled and shut down by the administrators. so you have to check Layer 1 before checking Layer 2. line protocol is down”. the last statement is for Layer 2 and if Layer 1 is down then surely Layer 2 will be down too”.

Answer: Explanation: The question asks us to “begin with the lowest layer” so we have to begin with Layer 1: verify physical connection. the signal on the cable is acceptable… Next we “verify NIC operation”. Based on the layered approach to troubleshooting and beginning with the lowest layer.com 201 ." . in this case an Ethernet cable connection.Cisco 200-120 Exam QUESTION NO: 253 DRAG DROP A user is unable to connect to the Internet. straightthrough.actualtests.www. the RJ45 headers are plugged in. We do this by simply making a ping to the loopback interface "Pass Any Exam. “verify Ethernet cable connection” means that we check if the type of connection (crossover. Any Time. drag each procedure on the left to its proper category on the right. rollover…) is correct. For your information.

0. 2) and TCP/IP stack (layer 3) are working properly. TCP/IP is not functioning on Host1 C. 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. A network administrator attempts to ping Host2 from Host1 and receives the results that are shown. B. Interface Fa0/0 on Router1 is shutdown. The link between Host1 and Switch1 is down.Cisco 200-120 Exam 127. According to "Pass Any Exam.0. The link between Router1 and Router2 is down." .com 202 . D. We are using a URL so this step belongs to layer 7 of the OSI model.1. For example.actualtests. If it works then the NIC card (layer 1. What is the problem? A. F.www. The link between Switch1 and Router1 is down. The default gateway on Host1 is incorrect. Any Time.com to assure that the far end server is not down (it sometimes make we think we can’t access to the Internet). Answer: C Explanation: Host1 tries to communicate with Host2. checking if the IP can be assignable for host. Verify IP configuration belongs to layer 3. E. The message destination host unreachable from Router1 indicates that the problem occurs when the data is forwarded from Host1 to Host2.com. microsoft. QUESTION NO: 254 Refer to the exhibit.

" . Any Time. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. C.Cisco 200-120 Exam the topology. The IP address that is configured on S0/0 of RouterB is not in the correct subnet.actualtests.0 are unable to reach hosts in network 192. but the line protocol is down.0.www.3.It is enabled.168. F. D. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.F Explanation: From the output we can see that there is a problemwith the Serial 0/0 interface.com 203 . Answer: E. B. we can infer that the link between Router1 and Router2 is down. what are two possible reasons for the failure? (Choose two.) A. Hosts in network 192.2. Interface S0/0 on RouterA is configured with an incorrect subnet mask. "Pass Any Exam. E. Therecould be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU. Interface S0/0 on RouterB is administratively down. Based on the output from RouterA.168. The cable that is connected to S0/0 on RouterA is faulty. QUESTION NO: 255 Refer to the exhibit.

com 204 . Any Time.Cisco 200-120 Exam QUESTION NO: 256 Refer to the exhibit. The command ping is often used to verify the network connectivity. QUESTION NO: 257 Refer to the exhibit.10. application layer C. access layer D. At which OSI layer is the problem? A. "Pass Any Exam. data link layer B.actualtests.1 and sees the output as shown. session layer E. network layer Answer: E Explanation: The command ping uses ICMP protocol." .www.10. so it works at the network layer. which is a network layer protocol used to propagate control message between host and router. An administrator pings the default gateway at 10.

F.actualtests. D. Reseat all cables. QUESTION NO: 258 Refer to the exhibit. Any Time.com 205 . Ensure cable A is plugged into a trunk port. Ensure the switch has power. Reboot all of the devices. C.www. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three. Ensure that cables A and B are straight-through cables. B. "Pass Any Exam. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports. E." .) A. Answer: B. power and how they are plugged in.D.Cisco 200-120 Exam The two connected ports on the switch are not turning orange or green.F Explanation: The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type.

com 206 .1. Configure the gateway on Host A as 10.0 Gateway : 10.12 Mask : 255.actualtests.1.1.1. Any Time. Configure the masks on both hosts to be 255.255. E. Configure the gateway on Host B as 10.254.2.2.1.255.X Mask : 255. The IP information of member Host A in VLAN1 is as follows: Address : 10.224.1. Configure the IP address of Host A as 10.255.Cisco 200-120 Exam The network shown in the diagram is experiencing connectivity problems.1.255.1. C.10.255.1.D Explanation: The switch 1 is configured with two VLANs: VLAN1 and VLAN2.1.1.1. B. Configure the masks on both hosts to be 255. F.www.1.2 -.0 Gateway : 10.1.10.255.255.2. Which of the following will correct the problems? (Choose two. The layer3 addressing information of Host B should be modified as follows: Address : 10.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong.) A.2.254 The configuration of sub-interface on router 2 is as follows: Fa0/0.240." .254 The IP information of member Host B in VLAN2 is as follows: Address : 10.1.2.1. Configure the IP address of Host B as 10.1.0 "Pass Any Exam.1.255. D. Answer: B.126 Mask : 255.255.2.254/24 VLAN1 Fa0/0.1 -.2.255.

The transfer of files from Host B to the server in VLAN9 would be significantly slower.com 207 .www. For less than a minute. Communication between VLAN3 and the other VLANs would be disabled. Then normal network function would resume. Host B would not be able to access the server in VLAN9. C. Note that the terms bridge and switch are used interchangeably when discussing STP. D. 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. A problem with network connectivity has been observed. B. "Pass Any Exam.actualtests. unless otherwise indicated. In addition. Host B would not be able to access the server in VLAN9 until the cable is reconnected. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected.Cisco 200-120 Exam QUESTION NO: 259 Refer to the exhibit. connections between switches are assumed to be trunks." . STP creates a loopfree tree structure consisting of leaves and branches that span the entire Layer 2 network. The actual mechanics of how bridges communicate and how the STP algorithm works will be discussed at length in the following topics. What would be an effect of this cable being disconnected? A. Any Time.

64 Broadcast address: 192.1. The address of SwitchA is a subnet address.32 Broadcast address: 192.1.actualtests.168. The Fa0/0 interface on RouterA is on a subnet that can't be used. Answer: D Explanation: Now let’s find out the range of the networks on serial link: For the network 192.1. what is the cause of this problem? A.95 -> These two IP addresses don’t belong to the same network and they can’t see each other.com 208 . Any Time.168. The serial interfaces of the routers are not on the same subnet. D. HostA is not on the same subnet as its default gateway. B.www." .Cisco 200-120 Exam QUESTION NO: 260 Refer to the exhibit.168. "Pass Any Exam.1.1.168.168. The Fa0/0 interface on RouterB is using a broadcast address. Assuming routing is properly configured.63 For the network 192.1. C.168.62/27: Increment: 32 Network address: 192. E.65/27: Increment: 32 Network address: 192. HostA cannot ping HostB.

winipcfg F. show ip route. Any Time. tracert C. and winipcfg are PC commands." .Tracert. "Pass Any Exam. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. ping B. QUESTION NO: 262 A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. show interfaces Answer: A.www. not IOS.Cisco 200-120 Exam QUESTION NO: 261 Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.) A.D.F Explanation: Ping.actualtests. show ip route E.com 209 . and show interfaces are all validtroubleshooting IOS commands. ipconfig. ipconfig D.

B." . F. E.com 210 . Any Time. QUESTION NO: 264 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. It is an example of an improperly implemented redundant topology. C. what is the cause of this problem? A. 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 hello and dead intervals must match and here we can see the hello intervalis set to 5 on R1 and 10 on R2. The OSPF process ID numbers must match. during high traffic periods B. QUESTION NO: 263 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN? A. in an improperly implemented redundant topology E. when upper-layer protocols require high reliability D.actualtests. "Pass Any Exam.Cisco 200-120 Exam Based on the information in the graphic. The hello and dead timers are not configured properly. A backup designated router needs to be added to the network.The dead interval is also set to 20 on R1 but it is 40 on R2. The priority on R1 should be set higher. Answer: D Explanation: In OSPF. The OSPF area is not configured properly. The cost on R1 should be set higher. D. after broken links are re-established C.www.

actualtests." . "Pass Any Exam. Any Time.com 211 .Cisco 200-120 Exam Click the console connected to RouterC and issue the appropriate commands to answer the questions.www.

www.Cisco 200-120 Exam "Pass Any Exam.com 212 ." . Any Time.actualtests.

com 213 .actualtests.Cisco 200-120 Exam "Pass Any Exam.www." . Any Time.

www.com 214 . Any Time." .Cisco 200-120 Exam "Pass Any Exam.actualtests.

com 215 . B. "Pass Any Exam. Any Time. Change the ip access-group command on fa0/0 from “in” to “out”. Correctly assign an IP address to interface fa0/1." .www.actualtests.Cisco 200-120 Exam Which will fix the issue and allow ONLY ping to work while keeping telnet disabled? A.

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. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Any Time. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 115 in. D.com 216 . 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. Removeaccess-group 102 outfrom interface s0/0/0 and addaccess-group 114 in E. QUESTION NO: 265 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below." . "Pass Any Exam.actualtests.www.Cisco 200-120 Exam C. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 104 in.

" .Cisco 200-120 Exam Click the console connected to RouterC and issue the appropriate commands to answer the questions. "Pass Any Exam.www. Any Time.com 217 .actualtests.

Any Time.Cisco 200-120 Exam "Pass Any Exam." .www.com 218 .actualtests.

com 219 . Any Time.actualtests.Cisco 200-120 Exam "Pass Any Exam.www." .

It would allow all traffic from the 10. Any Time.actualtests. Attempts to telnet to the router would fail.com 220 . B.0 network.Cisco 200-120 Exam What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface? A.4. "Pass Any Exam.4." .www.

4. Answer: B Explanation: From the output of access-list 114: access-list 114 permit ip 10.0 network would not be accepted from the fa0/0 interface.255 any we can easily understand that this access list allows all traffic (ip) from 10.0/24 network QUESTION NO: 266 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below." . Click the console connected to RouterC and issue the appropriate commands to answer the questions. D. Routing protocol updates for the 10.actualtests.Cisco 200-120 Exam C.4.4.0.0 0.4. "Pass Any Exam.4.0.www.com 221 .4. IP traffic would be passed through the interface but TCP and UDP traffic would not. Any Time.

actualtests.Cisco 200-120 Exam "Pass Any Exam.com 222 .www. Any Time." .

com 223 . Any Time." .www.Cisco 200-120 Exam "Pass Any Exam.actualtests.

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actualtests.Cisco 200-120 Exam What would be the effect of issuing the command ip access-group 115 in on the s0/0/1 interface? A. "Pass Any Exam. No host could connect to RouterC through s0/0/1." .com 225 .www. Any Time.

All over interconnectivity and Internet access for the existing locations of the company are working properly.77. All passwords on all routers are cisco.0.www. D. Answer: A Explanation: First let’s see what was configured on interface S0/0/1: QUESTION NO: 267 CORRECT TEXT CCNA. The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.actualtests. IP addresses are listed in the chart below.33 S1/0 – 198. Any Time.4. echo.com 226 ." .18. All routers should be running an EIGRP AS number of 12. Telnet and ping would work but routing updates would fail. FTP-DATA.6 S0/0 – 192.Cisco 200-120 Exam B.27.4.168. FTP. and www would work but telnet would fail.0 network would pass through the interface. CCNA. C.com has a small network that is using EIGRP as its IGP. the ENG router does not have connectivity to the ISP router. Access to the router CLI can be gained by clicking on the appropriate host. Only traffic from the 10. Currently. MGT Fa0/0 – 192.com has recently added the ENG router. Router MGT is also running static routing to the ISP.168.9 "Pass Any Exam.

168.12.com 227 .www." .actualtests.168.12.168.17 Fa0/1 – 192.65 Fa0/1 – 192.168.12.Cisco 200-120 Exam S0/1 – 192.168.77.168.49 S0/0 – 192.168.168.10 Parts2 Fa0/0 – 192. Any Time.12.50.12.81 S0/1 – 192.22 "Pass Any Exam.33 Fa0/1 – 192.34 Fa1/0 – 192.12.1 Parts1 Fa0/0 – 192.50.168.21 ENG Fa0/0 – 192.27.168.

"Pass Any Exam. Any Time.www." .The basic router configuration .168.actualtests.0 QUESTION NO: 268 CORRECT TEXT The following have already been configured on the router: .com 228 .Cisco 200-120 Exam Answer: On the MGT Router: Config t Router eigrp 12 Network 192.The appropriate interfaces have been configured for NAT inside and NAT outside.77.

100.30/28 number of inside hosts – 14 A network associate is configuring a router for the weaver company to provide internet access.30.18.18. Answer: The company has 14 hosts that need to access the internet simultaneously butwe just have 6 public IP addresses from 198. 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.18.192. no routing protocol will be required) . The hosts in the company LAN have been assigned private space addresses in the range of 192. Configuration information: router name – Weaver inside global addresses – 198.110/29 inside local addresses . The company has 14 hosts that need to access the internet simultaneously. The ISP has provided the company six public IP addresses of 198.18. Functionality can be tested by clicking on the host provided for testing.100." .105 to 198.18.105 .All passwords have been temporarily set to “cisco”.com 229 .17 – 192. Any Time.Cisco 200-120 Exam .100.17 – 192.168.actualtests.184.110.105 198.168.184.184.168.168. Therefore we have to use NAT overload (or PAT) Double click on the Weaver router to open it Router>enable Router#configure terminal "Pass Any Exam.184.The appropriate static routes have also been configured (since the company will be a stub network.198.www.110/29.18.184.184.100.

168.18.110 netmask 255.2.2.0.248 Create a standard access control list that permits the addresses that are to betranslated.18.0.actualtests. whichmeans a source address from 192.100.100.184.0. just for yourunderstanding: Weaver(config)#interface fa0/0 Weaver(config-if)#ip nat inside Weaver(config-if)#exit Weaver(config)#interface s0/0 Weaver(config-if)#ip nat outside Weaver(config-if)#end Finally. specifying the access list that was definedin the prior step.17 to 192. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC. we should save all your work with the following command: Weaver#copy running-config startup-config Check your configuration by going to "Host for testing" and type: C :\>ping 192.168.114 The ping should work well and you will be replied from 192. Weaver(config)#ip nat pool mypool 198.114 QUESTION NO: 269 CORRECT TEXT Central Florida Widgets recently installed a new router in their office.www.com 230 .0. This is how to configure the NAT inside and NAT outside.100.184.255.168. Any Time.30. Overloadkeyword allows to map multiple IP addresses to a single registered IPaddress (many-toone) by using different ports.18.184.255.Cisco 200-120 Exam First you should change the router's name to Weaver Router(config)#hostname Weaver Create a NAT pool of global addresses to be allocated with their netmask.105 198. secret password is cisco "Pass Any Exam. into anaddress from the pool named mypool (the pool contains addresses from198. The question said that appropriate interfaces have been configured for NATinside and NAT outside statements." . Weaver(config)#access-list 1 permit 192.105 to 198.184. Weaver(config)#ip nat inside source list 1 pool mypool overload This command translates all source addresses that pass access list 1.110). Configure the router per the following requirements: Name of the router is R2 Enable.16 0.15 Establish dynamic source translation.18.

1.176/28 . Password In access user EXEC mode using the console is xxx 4.com 231 ." . secret password is xxx 3. Name or the router is xxx 2. Any Time.actualtests.165. Interfaces should be enabled.0.Cisco 200-120 Exam 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.www.router has fourth assignable host address in subnet Serial network is 192. please note the following.201. The password to allow telnet access to the router is xxx 5. Router protocol is RIPV2 Attention: In practical examinations. Enable.router has last assignable host address in the subnet. IP information Answer: Router>enable Router#config terminal Router(config)#hostnameR2 R2(config)#enable secret Cisco 1 R2(config)#line console 0 R2(config-line)#passwordCisco 2 R2(config-line)#exit R2(config)#line vty 0 4 R2(config-line)#passwordCisco 3 R2(config-line)#login R2(config-line)#exit R2(config)#interface faO/0 "Pass Any Exam.2.0/27 . the actual information will prevail.

The user on host C should be able to use a web browser to access financial information from the Finance Web Server. No other hosts from the LAN nor the Core should be able to use a web browser to access this server.255.255.190 255.4 255.Cisco 200-120 Exam R2(config-if)#ip address 209.201.0 R2(config-router)#network 192. "Pass Any Exam.com 232 .2. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server.www. Any Time.255." .0.165.240 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#router rip R2(config-router)#version 2 R2(config-router)#network 209. No other hosts will have web access to the Finance Web Server.255.224 R2(config)#interface s0/0/0 R2(config-if)#ip address 192. all other traffic should be allowed.176 R2(config-router)#end R2#copy run start QUESTION NO: 270 CORRECT TEXT A network associate is adding security to the configuration of the Corp1 router.0. All other traffic is permitted.2.201.165.actualtests. 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.

E.actualtests. F.168. To detect suboptimal routing in the network. C. Answer: A.240. understand who is utilizing the network and the network top talkers.247.22.3 Answer: Corp1#conf t Corp1(config)# access-list 128 permit tcp host 192.host B 192.240.168.1 192.141. + Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions.26 eq www Corp1(config)# access-list 128 deny tcp any host 172.1 host 172. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.240.1 .168. D. B. + Reduction in peak WAN traffic Use NetFlow statistics to measure WAN traffic improvement from application-policy changes.168.141. The Core connection uses an IP address of 198.D.240." . bandwidth hogs.host C 192.Cisco 200-120 Exam Access to the router CLI can be gained by clicking on the appropriate host. All passwords have been temporarily set to "cisco". To authorize user network access.host A 192.2 . To diagnose slow network performance. To identify applications causing congestion.26 eq www Corp1(config)# access-list 128 permit ip any any Corp1(config)#int fa0/1 Corp1(config-if)#ip access-group 128 out Corp1(config-if)#end Corp1#copy run startup-config QUESTION NO: 271 What are three reasons to collect Netflow data on a company network? (Choose three. and bandwidth utilization.65 The computers in the Hosts LAN have been assigned addresses of 192. To report and alert link up / down instances.240.168.com 233 .) A.18.240.www.F Explanation: NetFlow facilitates solutions to many common problems encountered by IT professionals. "Pass Any Exam. Any Time.254 .168.22.

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)# QUESTION NO: 273 "Pass Any Exam. flow record C. Flow monitors consist of a record and a cache." .-> F is correct. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface. -> D is correct. flow monitor B. -> A is correct.com 234 . Any Time. For example. + Validation of QoS parameters Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over. + Detection of unauthorized WAN traffic Avoid costly upgrades by identifying the applications causing congestion. QUESTION NO: 272 What Netflow component can be applied to an interface to track IPv4 traffic? A. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record. flow sampler D.www.actualtests. + Security and anomaly detection NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars.or under-subscribed.Cisco 200-120 Exam + Troubleshooting and understanding network pain points Diagnose slow network performance. bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. You add the record to the flow monitor after you create the flow monitor. which is configured for the flow monitor and stored in the flow monitor cache. flow exporter Answer: A Explanation: Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring.

www. show mls netflow ip Answer: C Explanation: The following is an example of how to visualize the NetFlow data using the CLI. Information provided includes packet size distribution. WCCP D. show ip flow export B. show mls sampling E.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232. Netflow C. IP SLA Answer: B Explanation: Netflow can be used to diagnose slow network performance. SNMP B.com 235 . Reference: http://www. Any Time. The traditional show command for NetFlow is "show ip cache flow" also available are two forms of top talker commands. 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.cisco. show ip flow top-talkers C. bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools." . a view of the protocol distribution statistics and the NetFlow cache. The following is the original NetFlow show command used for many years in Cisco IOS Software. "Pass Any Exam. There are three methods to visualize the data depending on the version of Cisco IOS Software. Also shown is a show MLS command to view the hardware cache on the Cisco Catalyst 6500 Series Switch.html QUESTION NO: 274 What command visualizes the general NetFlow data on the command line? A. show ip cache flow D.Cisco 200-120 Exam What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance? A.actualtests. basic statistics about number of flows and export timer setting.

source MAC address C.www.html QUESTION NO: 275 What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three. Reference: http://www.actualtests.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232.cisco.E Explanation: "Pass Any Exam." . egress interface D. destination IP address F.D.) A. source IP address B.com 236 .Cisco 200-120 Exam The “show ip cache flow” command displays a summary of the NetFlow accounting statistics. ingress interface E. Any Time. IP next-hop Answer: A.

Traditionally.) A.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232.C Explanation: NetFlow has a reputation for increasing CPU utilization on your network devices.com 237 . SNMP version F. protocol interface and class of service are grouped into a flow and then packets and bytes are tallied. WAN encapsulation Answer: A. an IP Flow is based on a set of 5 and up to 7 IP packet attributes. Services running on the device may also "Pass Any Exam. source/destination ports. Cisco's performance testing seems to indicate that newer hardware can accommodate this load pretty well. but you will still want to check it out before you turn on the feature.actualtests.www.B. number of devices exporting Netflow data D. Reference: http://www." . 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. CPU utilization B. Any Time. port availability E.Cisco 200-120 Exam Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes.cisco.html QUESTION NO: 276 What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets. Some symptoms of high CPU utilization are very large jitter and increased delay. where Netflow data will be sent C. 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.

www. C.Cisco 200-120 Exam be affected. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. Also bear in mind that the flows from aggregating large numbers of devices can add up. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. Depending on how much traffic you have and how you configure it.actualtests. Reference: http://searchenterprisewan.com 238 . Answer: D Explanation: "Pass Any Exam. 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. If the devices produced the given output. the traffic can be substantial. D. B. For example.com/tip/How-the-NetFlow-protocol-monitorsyour-WAN QUESTION NO: 277 Refer to the exhibit.techtarget. what is the cause of the EtherChannel problem? A." . Any Time. Another thing to keep in mind is the amount of data you're going to be sending across the network. SW1's Fa0/1 interface is administratively shut down.

NetFlow services data optimizes network planning including peering. and allocate network and application resources (e.www. Any Time. Network. This information may then be utilized to efficiently plan and allocate access." . Network Planning C.D Explanation: NetFlow traditionally enables several key customer applications including: + Network Monitoring – NetFlow data enables extensive near real time network monitoring capabilities.Cisco 200-120 Exam You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. and rapid problem resolution.Application & User Monitoring B. 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. QUESTION NO: 278 What are the benefits of using Netflow? (Choose three.g. This information is used to plan. ports. backbone and application resources as well as to detect and resolve potential security and policy violations. NetFlow "Pass Any Exam.) A. Web server sizing and VoIP deployment) to responsively meet customer demands. Security Analysis D.actualtests. efficient troubleshooting. and routing policy planning. backbone upgrade planning.Based on the output shown.com 239 . understand new services. or higher.C. time-based. + Application Monitoring and Profiling – NetFlow data enables network managers to gain a detailed. + User Monitoring and Profiling – NetFlow data enables network engineers to gain detailed understanding of customer/user utilization of network and application resources. view of application usage over the network.bandwidth interfaces. Accounting/Billing Answer: A. SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb. + 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.

application usage. NetFlow detects unwanted WAN traffic. printers…). Enterprise customers may utilize the information for departmental charge-back or cost allocation for resource utilization. validates bandwidth and Quality of Service (QOS) and allows the analysis of new network applications. etc. + Accounting/Billing – NetFlow data provides fine-grained metering (e. flow data includes details such as IP addresses. + Security Analysis – NetFlow identifies and classifies DDOS attacks.Cisco 200-120 Exam helps to minimize the total cost of network operations while maximizing network performance. viruses and worms in realtime. QUESTION NO: 279 Which protocol can cause overload on a CPU of a managed device? A.com 240 . Netflow B. timestamps. etc.) for highly flexible and detailed resource utilization accounting. Service providers may utilize the information for billing based on time-of-day.www. Note: A managed device is a part of the network that requires some form of monitoring and management (routers.g. quality of service. WCCP C. type-of-service and application ports. IP SLA D. switches. "Pass Any Exam. You can determine the cause of high CPU use in a router by using the output of the show process cpu command. packet and byte counts. workstations. capacity. Any Time. NetFlow will give you valuable information to reduce the cost of operating your network. and reliability. SNMP Answer: D Explanation: Sometimes. servers. bandwidth usage. Changes in network behavior indicate anomalies that are clearly demonstrated in NetFlow data.actualtests." . The data is also a valuable forensic tool to understand and replay the history of security incidents. 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.

Any Time. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.com 241 . You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets.C. MAC address Answer: A.Cisco 200-120 Exam QUESTION NO: 280 What are the three things that the Netflow uses to consider the traffic to be in a same flow? (Choose three) A. Traditionally. 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 QUESTION NO: 281 Scenario: Refer to the topology.actualtests. IP address B. L3 protocol type E. an IP Flow is based on a set of 5 and up to 7 IP packet attributes." . "Pass Any Exam.www.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. Interface name C. Port numbers D.

com 242 . Any Time.www.Cisco 200-120 Exam "Pass Any Exam." .actualtests.

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actualtests. What is causing the problem? A. There is an area ID mismatch. D. B.www.com 245 . Any Time. "Pass Any Exam. The R3 router ID is configured on R4." . C. There is an OSPF hello and dead interval mismatch.Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R4 in the Branch1 office. an encapsulation mismatch on serial links. There is a Layer 2 issue.

You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.actualtests. Any Time. "Pass Any Exam.www.com 246 . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.Cisco 200-120 Exam Answer: A Explanation: A show running-config command on R3 and R4 shows that R4 is incorrectly configured for area 2: QUESTION NO: 282 Scenario Refer to the topology." .

" . Any Time.www.Cisco 200-120 Exam "Pass Any Exam.com 247 .actualtests.

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There is a missing network command in the OSPF process on R5. Answer: C Explanation: The “show ip ospf interface command on R3 and R5 shows that the hello and dead intervals do not match.www. "Pass Any Exam.They are 50 and 200 on R3 and 10 and 40 on R5. There is an OSPF hello and dead interval mismatch.com 250 . What is causing the problem? A. B. There is a PPP authentication issue." . There is an area ID mismatch. a password mismatch.Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. C.actualtests. Any Time. D.

Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.com 251 .Cisco 200-120 Exam QUESTION NO: 283 Scenario: Refer to the topology. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.www.actualtests. "Pass Any Exam. Any Time." .

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Which option would fix the issue? A.actualtests. R2 ethernet0/1 and R3 ethernet0/0are configured with a non-default OSPF hello interval of 25. "Pass Any Exam. B. R1 ethernet0/1 configured with a non-default OSPF hello interval of 25. D. C.www.Cisco 200-120 Exam R1 does not form an OSPF neighbor adjacency with R2. configure no ip ospf hello-interval 25." . R1 ethernet0/1 is shutdown. Enable OSPF for R1 ethernet0/1.com 254 . Any Time. configure ip ospf 1 area 0 command under ethernet0/1.configure no ip ospf hello-interval 25. Configure no shutdown command.

com 255 . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. Any Time." .www. QUESTION NO: 284 Scenario Refer to the topology.actualtests. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. 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). "Pass Any Exam.Cisco 200-120 Exam Answer: B Explanation: Looking at the configuration of R1.

com 256 ." .www.actualtests.Cisco 200-120 Exam "Pass Any Exam. Any Time.

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www.com 258 .actualtests." . Any Time.Cisco 200-120 Exam "Pass Any Exam.

There is an OSPF hello and dead interval mismatch. The R3 router ID is configured on R6. D.www." . C. "Pass Any Exam.Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. There is a PPP authentication issue.com 259 . Any Time.actualtests. B. What is causing the problem? A. There is an area ID mismatch. the username is not configured on R3 and R6.

com 260 . QUESTION NO: 285 Scenario Refer to the topology. Use the appropriate show commands to troubleshoot the issues. R2 and R3 are connected to the switches SW1 and SW2. "Pass Any Exam. You are required to troubleshoot and resolve the EIGRP issues between the various routers. R2. The EIGRP routing protocol is configured. SW1 and SW2 are also connected to the routers R4 and R5.Cisco 200-120 Exam 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.www. Your company has connected the routers R1.actualtests. respectively. and R3 with serial links." . Any Time.

www.com 261 ." .actualtests.Cisco 200-120 Exam "Pass Any Exam. Any Time.

www." .Cisco 200-120 Exam "Pass Any Exam.com 262 .actualtests. Any Time.

Any Time.actualtests.com 263 .Cisco 200-120 Exam "Pass Any Exam." .www.

com 264 .Cisco 200-120 Exam "Pass Any Exam.actualtests.www. Any Time." .

4.actualtests. "Pass Any Exam.Cisco 200-120 Exam The loopback interfaces on R4 with the IP addresses of 10. R4 has been incorrectly configured to be in another AS.4. The interfaces are shutdown.6/32 are not appearing in the routing table of R5.AS numbers . 10. and the network command is missing on R4.4.4. C. the following must match: . The loopback addresses haven't been advertised." . so it does not peer with R5.4.Authentication method and key strings Here. Automatic summarization is enabled.Neighbors must be in the same subnet . Any Time. Why are the interfaces missing? A. so they are not being advertised.5/32. and 10. when it should be AS 1.4.0.0. we see that R4 is configured for EIGRP AS 2.0 network is displayed. so only the 10.4/32.com 265 .K values . Answer: B Explanation: For an EIGRP neighbor to form.www. D. B.

and R3 with serial links. R2. SW1 and SW2 are also connected to the routers R4 and R5.Cisco 200-120 Exam QUESTION NO: 286 Scenario Refer to the topology.www. The EIGRP routing protocol is configured.com 266 . "Pass Any Exam. R2 and R3 are connected to the switches SW1 and SW2.actualtests. Your company has connected the routers R1. You are required to troubleshoot and resolve the EIGRP issues between the various routers. respectively. Any Time." . Use the appropriate show commands to troubleshoot the issues.

" . Any Time.www.com 267 .Cisco 200-120 Exam "Pass Any Exam.actualtests.

actualtests.www.Cisco 200-120 Exam "Pass Any Exam." . Any Time.com 268 .

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actualtests.Cisco 200-120 Exam "Pass Any Exam." .www. Any Time.com 270 .

5.5 and 10. D.5. "Pass Any Exam. C. Answer: A Explanation: Using the “show ip int brief command” on R5 we can see the IP addresses assigned to this router. Any Time.55 the preferred path is via Serial 1/3. B.actualtests.5.www.Then. The traffic goes through R3. The traffic is equally load-balanced over R2 and R3.Cisco 200-120 Exam Which path does traffic take from R1 to R5? A. The traffic is unequally load-balanced over R2 and R3.5.com 271 . which we see from the diagram is the link to R2. using the “show ip route” command on R1 we can see that to reach 10. The traffic goes through R2." .

com 272 ." .Cisco 200-120 Exam QUESTION NO: 287 Scenario Refer to the topology. "Pass Any Exam. R2 and R3 are connected to the switches SW1 and SW2. respectively.actualtests.www. and R3 with serial links. Use the appropriate show commands to troubleshoot the issues. SW1 and SW2 are also connected to the routers R4 and R5. The EIGRP routing protocol is configured. R2. Your company has connected the routers R1. You are required to troubleshoot and resolve the EIGRP issues between the various routers. Any Time.

" .com 273 .www.actualtests. Any Time.Cisco 200-120 Exam "Pass Any Exam.

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www. B." . The K values mismatch. What is the cause for this misconfiguration? A. "Pass Any Exam.actualtests.com 276 .Cisco 200-120 Exam Router R6 does not form an EIGRP neighbor relationship correctly with router R1. Any Time. The passiveinterface command is enabled. D. The network command is missing. C. The AS does not match.

" .Cisco 200-120 Exam Answer: C Explanation: The link from R1 to R6 is shown below: As you cansee.com 277 .168.actualtests.16.www. Any Time.The IP addresses are in the 192. they are both using e0/0.0 network: "Pass Any Exam.

respectively.Cisco 200-120 Exam But when we look at the EIGRP configuration.16. SW1 and SW2 are also connected to the routers R4 and R5.actualtests. the “network 192.www. Your company has connected the routers R1. "Pass Any Exam.com 278 . QUESTION NO: 288 Scenario Refer to the topology. Any Time." . R2 and R3 are connected to the switches SW1 and SW2.168. R2. The EIGRP routing protocol is configured.0” command is missing on R6. and R3 with serial links.

"Pass Any Exam.com 279 .actualtests.Cisco 200-120 Exam You are required to troubleshoot and resolve the EIGRP issues between the various routers. Any Time. Use the appropriate show commands to troubleshoot the issues." .www.

actualtests. Any Time." .www.com 280 .Cisco 200-120 Exam "Pass Any Exam.

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1. Sending 5.1. "Pass Any Exam.1.55 source 10.1. Answer: C Explanation: R5 does not have a route to the 10.Cisco 200-120 Exam Study the following output taken on R1: R1# Ping 10. C. The IP address that is configured on the Lo1 interface on R5 is incorrect. The loopback interface is shut down on R5. The network statement is missing on R5.1. Success rate is 0 percent (0/5) Why are the pings failing? A.55. we see that the 10.1 network statement is missing on R1.When looking at the EIGRP configuration on R1.com 283 .1 …….5.5.5. which is the loopback0 IP address of R1.5.1 network. B.1 Type escape sequence to abort. 100-byte ICMP Echos to 10.1. The network statement is missing on R1." .actualtests. Any Time.1. D. timeout is 2 seconds: Packet sent with a source address of 10.www.1.

WAN Technologies QUESTION NO: 289 The output of the show frame-relay pvc command shows "PVC STATUS = INACTIVE"." .www. The PVC is configured correctly.Cisco 200-120 Exam Topic 8. and is no longer actively seeking the address of the remote router.com 284 . B. is operating normally. Any Time. but no data packets have been detected for more than five minutes.actualtests. The PVC is configured correctly and is operating normally. What does this mean? A. "Pass Any Exam.

and is waiting for interesting traffic to trigger a call to the remote router. 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). E. 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." . The PVC is configured correctly on the local switch. The PVC is configured correctly. is operating normally.com 285 .actualtests. but there is a problem on the remote end of the PVC. QUESTION NO: 290 DRAG DROP Drag the Frame Relay acronym on the left to match its definition on the right. (Not all acronyms are used. The PVC is not configured on the local switch. D.Cisco 200-120 Exam C. Any Time.) Answer: "Pass Any Exam.www. The DCE device creates and sends the report to the DTE devices. Answer: D Explanation: The PVC STATUS displays the status of the PVC. This status is rarely seen so it is ignored in some books.

com 286 .www. which IP addresses would be assigned to the interfaces with point-to- "Pass Any Exam.Cisco 200-120 Exam Explanation: QUESTION NO: 291 Refer to the exhibit. In the Frame Relay network.actualtests. Any Time." .

10.168. on a serial interface? A.168.2 /24 D.www. each connection needs to be in a separate subnet.10.168.11. the R3-R1 connection would also be in the same subnet. Router(config-if)# authentication ppp chap pap Answer: B Explanation: This command tells the router firsttouse CHAP and then go to PAP if CHAP isn't available.1 /24 DLCI 17: 192.1 /24 DLCI 17: 192.168.168.3 /24 B.168.168.168. but it must be in a differentone than the R2-R1 connection. Router(config-if)# authentication ppp chap fallback ppp D.168.1 /24 DLCI 99: 192.3 /24 DLCI 28: 192.10. DLCI 16: 192. DLCI 16: 192.10.10.11.168. "Pass Any Exam.13.168.10. QUESTION NO: 292 Which command is used to enable CHAP authentication.2 /24 DLCI 28: 192.1 /24 DLCI 99: 192.10.1 /24 C.168.1 /24 DLCI 28: 192.1 /24 DLCI 17: 192. Any Time.10.168.1 /24 DLCI 17: 192. Router(config-if)# ppp authentication chap fallback ppp B. with PAP as the fallback method.10.12.actualtests.1 /24 DLCI 99: 192.2 /24 DLCI 28: 192.10.Cisco 200-120 Exam point PVCs? A. DLCI 16: 192.168." . Router(config-if)# ppp authentication chap pap C.10.4 /24 Answer: C Explanation: With point to point PVC’s. The R2-R1 connection (DLCI 16 to 99) would have eachrouter within the same subnet.Similarly.com 287 .168. DLCI 16: 192.2 /24 DLCI 99: 192.168.11.

IPSec can be used to protect one or more data flows between IPSec peers. QUESTION NO: 294 At which layer of the OSI model does PPP perform? A. to provide secure end-to-end communications? A.www.Cisco 200-120 Exam QUESTION NO: 293 Which protocol is an open standard protocol framework that is commonly used in VPNs." . Any Time. data integrity. RSA B. Layer 3 C. IPsec D. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. L2TP C. and data authentication between participating peers at the IP layer. PPTP Answer: C Explanation: IPSec is a framework of open standards that provides data confidentiality.com 288 . Layer 4 D.actualtests. Layer 2 B. It is a data link layer protocol (layer 2 in the OSI model) "Pass Any Exam. 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.

L2TPv3 E. The broadcast option allows packets. C. as it can be used to connect networks. E. typically when used with VPN technology. WAP C. It is a data link layer protocol used for WAN connections. The IP address 10.8 102 broadcast was entered on the router.Cisco 200-120 Exam QUESTION NO: 295 The command frame-relay map ip 10. so the PVC supports broadcast.C Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links.121. DSL D. 102 is the remote DLCI that will receive the information.actualtests.16. Which of the following statements is true concerning this command? A. QUESTION NO: 296 Which two options are valid WAN connectivity methods? (Choose two. DSL is also considered a WAN connection. such as RIP updates. to be forwarded across the PVC. "Pass Any Exam. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. This command should be executed from the global configuration mode. Answer: E Explanation: Broadcast is added to the configurations of the frame relay." . PPP B.8 is the local router port used to forward data. Ethernet Answer: A.com 289 .121. This command is required for all Frame Relay configurations.) A.16. D. Any Time.www. allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself. B.

such as Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). PPP was designed to work with several network layer protocols.Cisco 200-120 Exam QUESTION NO: 297 Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms? A.www. Any Time. HDLC B. PPP also has built-in security mechanisms. which is in conformance with RFC 1490 and RFC 2427. HDLC Answer: A Explanation: Explanation: Cisco supports two Frame Relay encapsulation types: theCisco encapsulationand theIETF Frame Relay encapsulation. Q9333-A Annex A D. IETF B. Below is the output of this command (notice Cisco is the default encapsulation so it is not listed here.25 D. 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. including IP. QUESTION NO: 298 Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers? A.com 290 . ANSI Annex D C." .actualtests. just press Enter to use it). X. You can test with your Cisco router when typing the command Router(config-if)# encapsulation frame-relay ?on a WAN link. "Pass Any Exam. Frame Relay Answer: B Explanation: PPP: Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits. PPP C.

1 255. and ITU Q933-A (Annex A) LMI types. But we guess there is a typo in the output. HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type. what is the most likely cause of the problem? A.2 255.com 291 . respectively. The “frame-relay map ip” statement is correct thus none of the four answers above is correct. Maybe the “ip address 172.255.0.16.100. QUESTION NO: 299 RouterA is unable to reach RouterB. and Q933a.0. They represent the ANSI Annex D. incorrect bandwidth configuration B. Cisco.0. incorrect IP address Answer: C Explanation: First we have to say this is an unclear question and it is wrong.255. Cisco.actualtests. incorrect map statement D. Both routers are running IOS version 12.100. incorrect LMI configuration C.16. QUESTION NO: 300 Refer to the exhibit.Cisco 200-120 Exam Note: Three LMI options are supported by Cisco routers are ansi.www. After reviewing the command output and graphic.0.0 command should be “ip address 172. "Pass Any Exam. Any Time." . That makes answer C correct.

3.16. If the Frame Relay environment supports LMI autosensing and Inverse ARP.Cisco 200-120 Exam What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown? A. Dynamic address mapping is enabled by default for all protocols enabled on a physical interface. When using dynamic address mapping. D. The router at the remote office is a non-Cisco router. Answer: E Explanation: Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism for dynamic DLCI to Layer 3 address maps. the router knows the Layer 2 address which is the DLCI. B.255. but needs to know the remote Layer 3 IP address. Any Time. Once the requesting router receives an Inverse ARP response. The DLCI 100 was dynamically allocated by the router. Inverse ARP requests a next-hop protocol address for each active PVC. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud. with ARP. The Serial0/0 interface is passing traffic. it updates its DLCI-to-Layer 3 address mapping table.252 "Pass Any Exam. the device knows the Layer 3 IP address and needs to know the remote data link MAC address. QUESTION NO: 301 A network administrator needs to configure a serial link between the main office and a remote location.16.actualtests. Inverse ARP works much the same way Address Resolution Protocol (ARP) works on a LAN.1 from a DHCP server.www.16. Therefore. With Inverse ARP. no static address mapping is required. How should the network administrator configure the serial interface of the main office router to make the connection? A.1. However. The Serial0/0 interface acquired the IP address of 172. C. E.3." .com 292 .255. dynamic address mapping takes place automatically.1 255.1 was learned through Inverse ARP. Main(config)# interface serial 0/0 Main(config-if)# ip address 172. The mapping between DLCI 100 and the end station IP address 172.

255.1 255.actualtests. particularly when multiple locations are involved. Any Time.E Explanation: IPsec offer a number of advantages over point to point WAN links. broadband incompatibility D.16. increased security since all traffic is encrypted.1 255.1.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut D.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut C.D. reduced latency Answer: A.255.1.These include reduced cost. and increased scalability as s single WAN link can be used to connect to all locations in a VPN. increased security E.) A.16. better throughput C.The other option is PPP which is standards based and supported by all vendors.255. is Cisco proprietary and worksonly with other Cisco routers.1. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.Cisco 200-120 Exam Main(config-if)# no shut B. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.www.16.The default." . where as a point to point link would need to be provisioned to each location.255.255. "Pass Any Exam.com 293 . QUESTION NO: 302 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.252 Main(config-if)#encapsulation ietf Main(config-if)# no shut Answer: B Explanation: With serial point to point links there are two options for the encapsulation.255. reduced cost B. Main(config)# interface serial 0/0 Main(config-if)#ip address 172. HDLC.1 255. scalability F.

4. active Serial0/0 (up): ip 10. "Pass Any Exam..D Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10.com 294 .www. the IP address of the local router Answer: B. CISCO.4.status defined.0x6410).4.status defined.Cisco 200-120 Exam QUESTION NO: 303 Which two statistics appear in show frame-relay map output? (Choose two.0x6410). the number of BECN packets that are received by the router B. Any Time. broadcast.actualtests. the value of the local DLCI C. dynamic. the status of the PVC that is configured on the router E. broadcast.3dlci 403(0x193." .status defined. active QUESTION NO: 304 Users have been complaining that their Frame Relay connection to the corporate site is very slow.. active Serial0/0 (up): ip 10.4.) A.4. static. The network administrator suspects that the link is overloaded. dynamic.1dlci 401(0x191. the number of FECN packets that are received by the router D.4.4dlci 401(0x191.0x6430).

actualtests. DLCI = 100 B. in FECN packets 147 E. oversubscribed port.Cisco 200-120 Exam Based on the partial output of the Router# show frame relay pvc command shown in the graphic.com 295 ." . QUESTION NO: 305 Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link? "Pass Any Exam. 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. congestion being full buffers. last time PVC status changed 00:25:40 C. overloaded resources.www. Any Time. in BECN packets 192 D. which output value indicates to the local router that traffic sent to the corporate site is experiencing congestion? A. 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. etc.

F. QUESTION NO: 306 It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.) A. Check the encapsulation type on the Cisco device with theshow frame-relay map exec command. All TCP traffic is marked discard eligible. show frame-relay map C.D Explanation: For multiple PVC’s on a single interface. show frame-relay lmi B. Configure static Frame Relay map entries for each subinterface network. and no IP address will be assigned to the main interface. C. you must use IETF4 encapsulation on both devices. you must use subinterfaces.C. All UDP traffic is marked discard eligible and a BECN is sent. B. Disable split horizon to prevent routing loops between the subinterface networks. E.Each subinterface will then have its own IP address. Encapsulate the physical interface with multipoint PPP.actualtests. show frame-relay pvc D. Which of the following procedures are required to accomplish this task? (Choose three. show interfaces serial Answer: B Explanation: When connecting Cisco devices with non-Cisco devices. Answer: A. Configure each subinterface with its own IP address. B. QUESTION NO: 307 What occurs on a Frame Relay network when the CIR is exceeded? A. Remove the IP address from the physical interface. "Pass Any Exam.Cisco 200-120 Exam A." . Any Time. with each subinterface configured for each PVC.com 296 . D. Create the virtual interfaces with the interface command.www.

B. QUESTION NO: 308 Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two. CHAP authentication is performed only upon link establishment.com 297 . The verification is based on a shared secret (such as the client user's password).C Explanation: CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients." . Any Time.www. D. Note: In the Frame Relay frame format.) A. and may happen again at any time afterwards. CHAP periodically verifies the identity of the client by using a three-way handshake. C. CHAP uses a two-way handshake. 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. Answer: B. E.Cisco 200-120 Exam C. "Pass Any Exam. 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. D. Answer: D Explanation: Committed information rate (CIR): The minimum guaranteed data transfer rate agreed to by the Frame Relay switch. CHAP has no protection from playback attacks. This happens at the time of establishing the initial link (LCP).actualtests. CHAP authentication periodically occurs after link establishment. All traffic exceeding the CIR is marked discard eligible. CHAP authentication passwords are sent in plaintext. All TCP traffic is marked discard eligible and a BECN is sent. F. QUESTION NO: 309 Refer to the exhibit. CHAP uses a three-way handshake.

Note that this DLCI has only local significance.2 IP address are received D.1. QUESTION NO: 310 What is the result of issuing the frame-relay map ip 192. DLCI 17 describes the ISDN circuit between R2 and R3.168. D." .1.168. It cannot be used on R3 or R1. defines the destination IP address that is used in all broadcast packets on DCLI 202 B.www.168.com 298 .2 "Pass Any Exam. B. 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.actualtests.2 IP address Answer: D Explanation: This command identifies the DLCI that should be used for all packets destined to the 192.1.Cisco 200-120 Exam Which statement describes DLCI 17? A. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3. Frame Relay is strictly a Layer 2 protocol suite.2 202 broadcast command? A. DLCI 17 describes a PVC on R2. defines the DLCI on which packets from the 192.168. C. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider. Any Time. defines the DLCI that is used for all packets that are sent to the 192.1. defines the source IP address that is used in all broadcast packets on DCLI 202 C.

" . They create split-horizon issues. Any Time.In this case. They require a unique subnet within a routing domain. QUESTION NO: 311 Which PPP subprotocol negotiates authentication options? A. B.Each subinterface requires a unique IP address/subnet. They are ideal for full-mesh topologies. compression of PPP header fields.actualtests. NCP B. They require the use of NBMA options when using OSPF. emulating virtual point to point leased lines. They emulate leased lines. DLCI 202 should be used. D.com 299 . C. you cannot assign multiple interfaces in a router that belong to the same IP subnet. LPC negotiates link and PPP parameters to dynamically configure the data link layer of a PPP connection. and multilink options. Common LCP options include the PPP MRU. the authentication protocol. QUESTION NO: 312 What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two. SLIP D.C Explanation: Subinterfaces are used for point to point frame relay connections.) A. "Pass Any Exam.www. callback. Answer: B.Cisco 200-120 Exam address. DLCI Answer: D Explanation: The PPP Link Control Protocol (LCP) is documented in RFC 1661. ISDN C. LCP E.Remember. E.

CISCO.com 300 . show frame relay end-to-end Answer: C Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10..1dlci 401(0x191.4.4dlci 401(0x191.0x6430). dynamic. to map a known IP address to a MAC address B." . Any Time. to map a known DLCI to an IP address E. to map a known IP address to a SPID F. active Serial0/0 (up): ip 10. broadcast. active QUESTION NO: 314 What is the purpose of Inverse ARP? A.actualtests. broadcast. status defined.3dlci 403(0x193. static. to map a known SPID to a MAC address Answer: D Explanation: Dynamic address mapping relies on the Frame Relay Inverse Address Resolution Protocol "Pass Any Exam.0x6410).4.www.Cisco 200-120 Exam QUESTION NO: 313 What command is used to verify the DLCI destination address in a Frame Relay static configuration? A. show frame-relay lmi C. dynamic. active Serial0/0 (up): ip 10.4. show frame-relay pvc B. to map a known MAC address to an IP address D. to map a known DLCI to a MAC address C.4.4.0x6410). status defined.4. show frame-relay map D. status defined..

This access list can contain no more than three statements that meet these requirements.actualtests.201. to resolve a next hop network protocol (IP) address to a local DLCI value." .168. which contains all resolved Inverse ARP requests.168.168.17.1 – 192. QUESTION NO: 315 CORRECT TEXT A corporation wants to add security to its network. You have been tasked to create and apply a numbered access list to a single outbound interface. Other types of access from host B to theFinance Web Server should be blocked.18. Access to the router CLI can be gained by clicking on the appropriate host. 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. .18. .Cisco 200-120 Exam (Inverse ARP).201.201. .201. The router builds and maintains this address-toDLCI mapping table.host A 192.host B 192.The Core connection uses an IP address of 198.254. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.1 .4 .168.168.host D 192.www.All passwords have been temporarily set to “cisco”.237.3 .22. 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.65. All hosts in the Core and on local LAN should be able to access the Public Web Server.201. The requirements are: - Host B should be able to use a web browser (HTTP) to access the Finance Web Server.2 .22. .168. . "Pass Any Exam.201. defined by RFC 1293. Any Time.host C 192.The Public Web Server in the Server LAN has been assigned an addressof 172.132.The Finance Web Server has been assigned an address of 172.237. including both dynamic and static mapping entries.The computers in the Hosts LAN have been assigned addresses of 192.com 301 .

com 302 .www." .Cisco 200-120 Exam "Pass Any Exam.actualtests. Any Time.

www.Cisco 200-120 Exam "Pass Any Exam." . Any Time.actualtests.com 303 .

" .www. Any Time.actualtests. Explanation: We should create an access-list andapply it to the interface thatis connected to the Server LAN because it canfilter out traffic from both S2 and Core networks.To see which interface this is. so we will place our "Pass Any Exam. we know that the servers are located on the fa0/1 interface.com 304 . use the “show ip interface brief” command: From this.Cisco 200-120 Exam Answer: Please check the below explanation for all details.

our next two instructions are these: This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long).109. repeat to make sure they can reach the public server at 172. To verify. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.22.17 to check if you are allowed to access Finance Web Server or not.Cisco 200-120 Exam numbered access list here in the outbound direction. just click on host Bto open its web browser.17 via HTTP(port 80).22.2to theFinance Web Server 172.109. Any Time.17eq 80 Then.22.109.22. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192. Then.18. Cand D) and check to make sure you can’t access Finance Web Server from these hosts.109. Click on other hosts (A. In the address box type http://172. If your configuration is correct then you can access it.168.125.2 host 172. Corp1#configure terminal Our access-list needs to allow host B – 192." .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 theLAN and the Core networks. Finally.18) Corp1(config)#access-list 100 permit ip host 172. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam.www.109.17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.109.22.actualtests.22.18any Finally.com 305 .168125.109.

switch 0004. switch-mdf-c1(config-if)#hostname switch-mdf1 Answer: A Explanation: QUESTION NO: 318 If the primary root bridge experiences a power loss.Cisco 200-120 Exam Topic 9. switch-mdf-c1(config)#hostname switch-mdf1 B.90C5 Answer: A Explanation: "Pass Any Exam.9A1A. switch 00E0.F90B.F726.com 306 .6BE3 C. 2 C. 4 D. 8 Answer: C Explanation: QUESTION NO: 317 Which command can you use to set the hostname on a switch? A. switch-mdf-c1#hostname switch-mdf1 D. Any Time.www.3DC6 D. switch 00E0." . how many broadcast domains are present on the router? A.0BC0. Mixed Questions QUESTION NO: 316 If a router has four interfaces and each interface is connected to four switches.actualtests. 1 B. switch 0040. switch-mdf-c1>hostname switch-mdf1 C. which switch takes over? A.C182 B.

0/25 C. E. B. It specifies that the tunnel is a Teredo tunnel. Answer: A.5/32? A.1. Hop Limit B.) A. the default route Answer: A Explanation: "Pass Any Exam.0/26 B." . C.Cisco 200-120 Exam QUESTION NO: 319 Which IPv6 header field is equivalent to the TTL? A.1. TTD D. Scan Timer Answer: A Explanation: QUESTION NO: 320 Which two statements about the tunnel mode ipv6ip command are true? (Choose two. Any Time. It specifies IPv6 as the transport protocol.16. It specifies IPv6 as the encapsulation protocol.B Explanation: QUESTION NO: 321 What is the correct routing match to reach 172. Flow Label C. Hop Count E.1.16.16. It specifies IPv4 as the encapsulation protocol. D. 172.0/24 D. It enables the transmission of IPv6 packets within the configured tunnel.com 307 .1. 172. 172.actualtests.16.www.

com 308 . router(config)#ip route 0. router(config)#ip route 192. RFC 1631 D.0/20 to a specific interface? A.168.255.0.0.0 GigabitEthernet0/1 D. POST C. NTP C. router(config)#ip route 192.0. Any Time. ROMMON mode Answer: A Explanation: QUESTION NO: 323 Which command can you enter to route all traffic that is destined for 192.0 GigabitEthernet0/1 C. NAT B.0 GigabitEthernet0/1 B.0 255. RFC 1918 Answer: A Explanation: "Pass Any Exam.0.168.0." .www.168.0 0.Cisco 200-120 Exam QUESTION NO: 322 Which step in the router boot process searches for an IOS image to load into the router? A.0.255.240.255.0 GigabitEthernet0/1 Answer: A Explanation: QUESTION NO: 324 Which technology allows a large number of private IP addresses to be represented by a smaller number of public IP addresses? A.255.0.255. router(config)#ip route 0. bootstrap B.0 255.0.0. mini-IOS D.0 255.actualtests.

B.www. It enables the use of a secondary pool of IP addresses when the first pool is depleted. WiMax B. ESRP Answer: A Explanation: QUESTION NO: 327 What are three broadband wireless technologies? (Choose three. municipal Wi-Fi D. It enables the inside interface to receive traffic.com 309 . It enables the outside interface to forward traffic. CMTS Answer: A.C Explanation: "Pass Any Exam. Answer: A Explanation: QUESTION NO: 326 Which protocol advertises a virtual IP address to facilitate transparent failover of a Cisco routing device? A. satellite Internet C. site-to-site VPN E. RSMLT D. B." . C.Cisco 200-120 Exam QUESTION NO: 325 What is the effect of the overload keyword in a static NAT translation configuration? A. It enables port address translation. Any Time. DSLAM F.actualtests. DHCP C. D. FHRP B.) A.

The local username password is in clear text in the configuration. discarding Answer: A. intra-VLAN routing using router on a stick D. inter-VLAN routing using a Layer 3 switch B. B. inter-VLAN routing using a Layer 2 switch C. D." .Cisco 200-120 Exam QUESTION NO: 328 Which condition indicates that service password-encryption is enabled? A. forwarding E. learning D. Answer: A Explanation: QUESTION NO: 329 Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two. blocking B.www. The enable secret is in clear text in the configuration. The local username password is encrypted in the configuration. intra-VLAN routing using a Layer 3 switch Answer: A Explanation: "Pass Any Exam. C.) A.B Explanation: QUESTION NO: 330 Which technology can enable multiple VLANs to communicate with one another? A. The enable secret is encrypted in the configuration.com 310 .actualtests. listening C. Any Time.

process switching C. and IPv4 headers use an 8-bit TTL field.actualtests.) A. Any Time. IPv6 headers have a fixed length. Cisco Express Forwarding B. IPv6 headers use the Fragment Offset field in place of the IPv4 Fragmentation field. F. Answer: A. D.C Explanation: QUESTION NO: 332 Which feature builds a FIB and an adjacency table to expedite packet forwarding? A. locate an IOS image for booting C. Unlike IPv4 headers. cut-through Answer: A Explanation: QUESTION NO: 333 What is the purpose of the POST operation on a router? A. set the configuration register Answer: A Explanation: "Pass Any Exam. IPv6 headers use a 4-bit TTL field. enable a TFTP server D.www. IPv6 uses an extension header instead of the IPv4 Fragmentation field. determine whether additional hardware has been added B." . B. IPv6 headers use a smaller Option field size than IPv4 headers. IPv6 headers eliminate the IPv4 Checksum field.Cisco 200-120 Exam QUESTION NO: 331 In which three ways is an IPv6 header simpler than an IPv4 header? (Choose three. C.B. fast switching D.com 311 . E.

0.0. router(config-router)#default-information originate always Answer: A Explanation: QUESTION NO: 335 Which two types of NAT addresses are used in a Cisco NAT device? (Choose two. It can lead to overloaded resources on the router. external local Answer: A. inside local B. C.actualtests.com 312 .255. external global F. It can disable the overload command. router(config)#ip route 0.Cisco 200-120 Exam QUESTION NO: 334 Which command can you enter to set the default route for all traffic to an interface? A. B.B Explanation: QUESTION NO: 336 What is the danger of the permit any entry in a NAT access list? A.0." .0 0.) A.0 255.0. inside global C. inside private D. It can cause too many addresses to be assigned to the same interface.0 GigabitEthernet0/1 B. outside private E.255 GigabitEthernet0/1 C.0. It prevents the correct translation of IP addresses on the inside network. D. router(config)#ip route 0.www. router(config-router)#default-information originate D. Answer: A Explanation: "Pass Any Exam. Any Time.0.255.

B Explanation: QUESTION NO: 339 Which three characteristics are representative of a link-state routing protocol? (Choose three. exchanges routing tables with neighbors C.actualtests. By definition. they occur after the 512th bit of the frame has been transmitted. utilizes event-triggered updates E. They are frames that exceed 1518 bytes. VRRP C. HSRP B.D Explanation: "Pass Any Exam. They indicate received frames that did not pass the FCS match. utilizes frequent periodic updates Answer: A.Cisco 200-120 Exam QUESTION NO: 337 Which protocol is the Cisco proprietary implementation of FHRP? A. They may indicate a duplex mismatch. Answer: A. CARP Answer: A Explanation: QUESTION NO: 338 Which two statements about late collisions are true? (Choose two. E. B. provides common view of entire topology B.www. calculates shortest path D.C. C.) A." . Any Time.com 313 . D.) A. GLBP D. They occur when CRC errors and interference occur on the cable.

It configures an inactive switch virtual interface.Cisco 200-120 Exam QUESTION NO: 340 Refer to the exhibit.www. Switch#show interface vlan 20 D. Switch#show ip interface vlan 20 Answer: A Explanation: QUESTION NO: 342 If primary and secondary root switches with priority 16384 both experience catastrophic losses. a switch with priority 20480 B. B. Switch#show vlan id 20 B." . C. a switch with priority 8192 "Pass Any Exam. Switch#show ip interface brief C.actualtests. Any Time. It configures the native VLAN. What is the effect of the given configuration? A. which tertiary switch can take over? A. It configures an active management interface. Answer: A Explanation: QUESTION NO: 341 Which command can you enter to view the ports that are assigned to VLAN 20? A.com 314 . D. It configures the default VLAN.

Answer: A. D. a switch with priority 4096 D.com 315 ." . Link-local addresses are used to form routing adjacencies.actualtests. OSPFv3 was developed to support IPv6 routing.B Explanation: QUESTION NO: 344 Which two features can dynamically assign IPv6 addresses? (Choose two. Loopback addresses are used to form routing adjacencies. Any Time. and BGP are the only routing protocols that support IPv6. C. DHCP C.) A. OSPF. B.www. E.B Explanation: QUESTION NO: 345 Which command can you enter to configure a local username with an encrypted password and EXEC mode user privileges? A.) A. IPv6 stateful autoconfiguration E. NHRP D. a switch with priority 12288 Answer: A Explanation: QUESTION NO: 343 Which two statements about IPv6 and routing protocols are true? (Choose two. Router(config)#username jdone privilege 1 password 7 08314D5D1A48 "Pass Any Exam. EIGRP. ISATAP tunneling Answer: A. EIGRPv3 was developed to support IPv6 routing.Cisco 200-120 Exam C. IPv6 stateless autoconfiguration B.

122-23f.bin C.Cisco 200-120 Exam B. E. Router(config)#boot bootldr bootflash:c4500-jk9s-mz. Router(config)#boot system rom c7301-advipservicesk9-mz. It requires more resources than other routing methods. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin Answer: A.actualtests. Router(config)#username jdone privilege 15 password 0 PASSWORD1 Answer: A Explanation: QUESTION NO: 346 Which three commands can you use to set a router boot image? (Choose three. It is best used for small-scale deployments. Routers can use update messages to reroute when links fail.C Explanation: QUESTION NO: 348 Which type of address is the public IP address of a NAT device? "Pass Any Exam. B. Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin F. F.) A.B.com 316 . It uses consistent route determination. Any Time.122-33. It is best used for large-scale deployments.121-20. Router(config)# boot system flash c4500-p-mz. Router(config)#username jdone privilege 15 password 0 08314D5D1A48 D.124-24." .SB8a.bin E.T4.) A.B. D. Router(config)#username jdone privilege 1 password 7 PASSWORD1 C. Routing is disrupted when links fail.bin B. Answer: A.C Explanation: QUESTION NO: 347 Which three statements about static routing are true? (Choose three. C. Router(config)# boot system tftp c7300-js-mz.bin D.www.

outside public F. inside global D. inside public Answer: C Explanation: QUESTION NO: 349 Which command can you enter to display the hits counter for NAT traffic? A.www. show ip nat statistics B. show ip debug nat D. outside global B. outside local C." . DHCP Answer: A Explanation: QUESTION NO: 351 What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two. clear ip nat statistics Answer: A Explanation: QUESTION NO: 350 Which standards-based First Hop Redundancy Protocol is a Cisco supported alternative to Hot Standby Router Protocol? A. Any Time.) "Pass Any Exam. VRRP B. inside local E.Cisco 200-120 Exam A. GLBP C.actualtests. TFTP D. debug ip nat C.com 317 .

Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport trunk native vlan 20 D." .com 318 . Switch(config)#Interface gig x/y Switch(config-if)#vlan 20 Switch(config-vlan)#switchport access vlan 20 C. The interface displays a connected (up/up) state even when the duplex settings are mismatched.www.actualtests. E. Switch(config)#vlan 20 Switch(config)#Interface gig x/y Switch(config-if)#switchport access vlan 20 B. Any Time. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 "Pass Any Exam. 1-Gbps interfaces are full-duplex by default. The symptoms of a duplex mismatch may be intermittent.B Explanation: QUESTION NO: 352 Which command can you execute to set the user inactivity timer to 10 seconds? A. SW1(config-line)#exec-timeout 0 10 B. so mismatches may be disguised by collisions. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport access vlan 20 E. Autonegotiation is disabled. B. SW1(config-line)#absolute-timeout 0 10 D. C. D. SW1(config-line)#absolute-timeout 10 Answer: A Explanation: QUESTION NO: 353 Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch? A. Full-duplex interfaces use CSMA/CD logic.Cisco 200-120 Exam A. SW1(config-line)#exec-timeout 10 C. Answer: A.

The advertised prefix length must be 64 bits. The advertised prefix length must be 48 bits. 2001::1/127 is used for loopback addresses. FE80::/10 is used for link-local unicast. They are sourced from the configured IPv6 interface address.Cisco 200-120 Exam Switch(config-if)#switchport trunk allowed vlan 20 Answer: A Explanation: QUESTION NO: 354 Which spanning-tree protocol rides on top of another spanning-tree protocol? A. FF00:/8 is used for IPv6 multicast. D." . E. RSTP C.com 319 . C.) A. PVST+ D. B. Any Time.B Explanation: QUESTION NO: 356 Which three statements about IPv6 prefixes are true? (Choose three. They use ICMPv6 type 134.) A. MSTP B. Their destination is always the link-local address of the neighboring node. B.actualtests. Mono Spanning Tree Answer: A Explanation: QUESTION NO: 355 Which two statements about IPv6 router advertisement messages are true? (Choose two. Answer: A. FC00::/7 is used in private networks. C. "Pass Any Exam.www. D.

actualtests. FE80::/8 is used for link-local unicast. Router#show run C." . E. C. Updates are sent to a multicast address by default. Any Time. Updates are sent to a broadcast address. Router#show interface loopback 0 D.com 320 . FEC0::/10 is used for IPv6 broadcast.Cisco 200-120 Exam E. Router#show ip interface brief Answer: A Explanation: QUESTION NO: 358 Which three statements about link-state routing are true? (Choose three.B. B.C Explanation: QUESTION NO: 357 After you configure the Loopback0 interface. RIP is a link-state protocol. which command can you enter to verify the status of the interface and determine whether fast switching is enabled? A.) A. It uses split horizon. Router#show ip interface loopback 0 B.C Explanation: QUESTION NO: 359 Which NAT function can map multiple inside addresses to a single outside address? A. Routes are updated when a change in topology occurs. OSPF is a link-state protocol. F.www.B. Answer: A. PAT "Pass Any Exam. Answer: A. D. F.

Answer: A Explanation: QUESTION NO: 361 What are two requirements for an HSRP group? (Choose two. Any Time. ARP E. exactly one standby active router E.B Explanation: QUESTION NO: 362 Which two commands can you enter to verify that a configured NetFlow data export is operational? (Choose two. D.) "Pass Any Exam." . SFTP C. RARP D. B. Define inside and outside interfaces. Define public and private IP addresses. Define IP address pools.actualtests.) A. one or more backup virtual routers D. TFTP Answer: A Explanation: QUESTION NO: 360 What is the first step in the NAT configuration process? A. exactly one active router B.com 321 . one or more standby routers C. exactly one backup virtual router Answer: A. C. Define global and local interfaces.Cisco 200-120 Exam B.www.

They are frequently used by rural users without access to other high-speed connections. Their upload speed is about 10 percent of their download speed. Other types of access from host C to the Finance Web Server should be blocked. ip flow-export destination Answer: A. .actualtests. show ip flow export B. They are usually at least 10 times faster than analog modem connections. . They are usually faster than cable and DSL connections.B Explanation: QUESTION NO: 363 What are three characteristics of satellite Internet connections? (Choose three. Any Time.com 322 . They require a WiMax tower within 30 miles of the user location. D.C Explanation: QUESTION NO: 364 CORRECT TEXT A corporation wants to add security to its network. B." . They use radio waves to communicate with cellular phone towers. You have been tasked to create and apply a numbered access list to a single outbound interface. ip flow egress E. All hosts in the Core and on local LAN should be able to access the Public Web Server. ip flow ingress D.65.18.209. Answer: A. C. F. interface ethernet 0/0 F.www.The Core connection uses an IP address of 198.All passwords have been temporarily set to “cisco”.B. show ip cache flow C. The requirements are: - Host C should be able to use a web browser (HTTP) to access the Finance Web Server. Access to the router CLI can be gained by clicking on the appropriate host. "Pass Any Exam.Cisco 200-120 Exam A.) A. This access list can contain no more than three statements that meet these requirements. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. E.

78.www.254.168.146. "Pass Any Exam.1 host B 192.1 – 192. The Public Web Server in the Server LAN has been assigned an address of 172.168.78.78." .78.com 323 .22. Any Time.3 host D 192.2 host C 192.78.18.actualtests.168. host A 192.146.- Cisco 200-120 Exam The computers in the Hosts LAN have been assigned addresses of 192.168.4 The Finance Web Server has been assigned an address of 172.168.168.22.17.78.

Cisco 200-120 Exam "Pass Any Exam.www.actualtests. Any Time.com 324 ." .

Cisco 200-120 Exam Answer: Please see below explanation part for details answer steps: "Pass Any Exam." .com 325 .actualtests.www. Any Time.

" .168125. just click on host Cto open its web browser. "Pass Any Exam.22.17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.actualtests. use the “show ip int brief” command: From this.22. In the address box type http://172.Cisco 200-120 Exam Explanation: We should create an access-list andapply it to the interface thatis connected to the Server LAN because it canfilter out traffic from both S2 and Core networks.www. our next two instructions are these: This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long).To see which interface this is. To verify.3to theFinance Web Server 172.22.18) Corp1(config)#access-list 100 permit ip host 172.22. so we will place our numbered access list here in the outbound direction.109.22.17 via HTTP(port 80).109.109.17 to check if you are allowed to access Finance Web Server or not. 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 theLAN and the Core networks.109. If your configuration is correct then you can access it.125.17eq 80 Then.168. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192.com 326 .109.18any Finally. we know that the servers are located on the fa0/1 interface. Any Time.22. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172. Corp1#configure terminal Our access-list needs to allow host C – 192.109.3 host 172.

Then.Cisco 200-120 Exam Click on other hosts (A.www." . Finally.109. Any Time.18. repeat to make sure they can reach the public server at 172.actualtests.22.com 327 . B and D) and check to make sure you can’t access Finance Web Server from these hosts. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam.

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