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Home Cisco® 200-105

Cisco® 200-105 Exam Practice Questions (P. 4)

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Question #31
Which protocol supports sharing the VLAN configuration between two or more switches?
  1. A
    multicast
  2. B
    SIP
  3. C
    VTP
  4. D
    split-horizon

Correct Answer:
C

Question #32
Scenario -
Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues.

Instructions -
✑ Enter the IOS commands on the device to verify the network operations and to find the answers for the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click the device to gain access to the console of the device. No console or enable passwords are required.
To access the multiple-choice questions, click the numbered boxes on the left of the top panel.

✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.









The loopback interfaces on R4 with the IP addresses of 10.4.4.4/32, 10.4.4.5/32, and 10.4.4.6/32 are not appearing in the routing table of R5.
Why are the interfaces missing?
  1. A
    The interfaces are shutdown, so they are not being advertised.
  2. B
    R4 has been incorrectly configured to be in another AS, so it does not peer with R5.
  3. C
    Automatic summarization is enabled, so only the 10.0.0.0 network is displayed.
  4. D
    The loopback addresses havent been advertised, and the network command is missing on R4. B

Correct Answer:
Explanation
For an EIGRP neighbor to form, the following must match:
Neighbors must be in the same subnet
K values
AS numbers
Authentication method and key strings
Here, we see that R4 is configured for EIGRP AS 2, when it should be AS 1.

Question #33
Scenario -
Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues.

Instructions -
✑ Enter the IOS commands on the device to verify the network operations and to find the answers for the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click the numbered boxes on the left of the top panel.
✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.









Which path does traffic take from R1 to R5?
  1. A
    The traffic goes through R2.
  2. B
    The traffic goes through R3.
  3. C
    The traffic is equally load-balanced over R2 and R3
  4. D
    The traffic is unequally load-balanced over R2 and R3.

Correct Answer:
A
Using the "show ip int brief command" on R5 we can see the IP addresses assigned to this router. Then, using the "show ip route" command on R1 we can see that to reach
10.5.5.5 and 10.5.5.55 the preferred path is via Serial 1/3, which we see from the diagram is the link to R2.

Question #34
Scenario -
Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues.

Instructions -
✑ Enter the IOS commands on the device to verify the network operations and to find the answers for the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click the numbered boxes on the left of the top panel.
✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.









Router R6 does not form an EIGRP neighbor relationship correctly with router R1. What is the cause for this misconfiguration?
  1. A
    The К values mismatch.
  2. B
    The AS does not match.
  3. C
    The network command is missing.
  4. D
    The passive-interface command is enabled.

Correct Answer:
C
The link from R1 to R6 is shown below:

As you can see, they are both using e0/0. The IP addresses are in the 192.168.16.0 network:


But when we look at the EIGRP configuration, the "network 192.168.16.0" command is missing on R6.

Question #35
Scenario -
Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.
The EIGRP routing protocol is configured.
You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues.

Instructions -
✑ Enter the IOS commands on the device to verify the network operations and to find the answers for the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click the numbered boxes on the left of the top panel.
There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.










Study the following output taken on R1:
R1# Ping 10.5.5.55 source 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.5.5.55, timeout is 2 seconds:
Packet sent with a source address of 10.1.1.1

Success rate is 0 percent (0/5)
Why are the pings failing?
  1. A
    The network statement is missing on R5.
  2. B
    The loopback interface is shut down on R5.
  3. C
    The network statement is missing on R1.
  4. D
    The IP address that is configured on the Lo1 interface on R5 is incorrect.

Correct Answer:
C
R5 does not have a route to the 10.1.1.1 network, which is the loopback0 IP address of R1. When looking at the EIGRP configuration on R1, we see that the
10.1.1.1 network statement is missing on R1.

Question #36
Which option describes how a switch in rapid PVST+ mode responds to a topology change?
  1. A
    It immediately deletes dynamic MAC addresses that were learned by all ports on the switch.
  2. B
    It sets a timer to delete all MAC addresses that were learned dynamically by ports in the same STP instance.
  3. C
    It sets a timer to delete dynamic MAC addresses that were learned by all ports on the switch.
  4. D
    It immediately deletes all MAC addresses that were learned dynamically by ports in the same STP instance.

Correct Answer:
D

Question #37
Scenario -
Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.
Use appropriate show commands to troubleshoot the issues and answer all four questions.

Instructions -
✑ Enter Cisco IOS commands on the device to verify network operation and answer the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click on the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click on the numbered boxes on the left of the top panel.
There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.









An OSPF neighbor adjacency is not formed between R3 in the main office and R4 the Branch1 office. What is causing the problem?
  1. A
    There is an area ID mismatch.
  2. B
    There is a Layer 2 issue; an encapsulation mismatch on serial links.
  3. C
    There is an OSPF hello and dead interval mismatch.
  4. D
    The R3 router ID is configured on R4.

Correct Answer:
A
A show running-config command on R3 and R4 shows that R4 is incorrectly configured for area 2:

Question #38
Scenario -
Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.
Use appropriate show commands to troubleshoot the issues and answer all four questions.

Instructions -
✑ Enter Cisco IOS commands on the device to verify network operation and answer the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click on the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click on the numbered boxes on the left of the top panel.
✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.








An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. What is causing the problem?
  1. A
    There is an area ID mismatch.
  2. B
    There is a PPP authentication issue; a password mismatch.
  3. C
    There is an OSPF hello and dead interval mismatch.
  4. D
    There is a missing network command in the OSPF process on R5.

Correct Answer:
C
The "show ip ospf interface command on R3 and R5 shows that the hello and dead intervals do not match. They are 50 and 200 on R3 and 10 and 40 on R5.

Question #39
Scenario -
Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.
Use appropriate show commands to troubleshoot the issues and answer all four questions.

Instructions -
✑ Enter Cisco IOS commands on the device to verify network operation and answer the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click on the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click on the numbered boxes on the left of the top panel.
✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.








R1 does not form an OSPF neighbor adjacency with R2. Which option would fix the issue?
  1. A
    R1 ethernet0/1 is shutdown. Configure the no shutdown command.
  2. B
    R1 ethernet0/l configured with a non-default OSPF hello interval of 25; configure no ip ospf hello-interval 25.
  3. C
    R2 ethernet0/1 and R3 ethernet0/0 are configured with a non-default OSPF hello interval of 25; configure no ip ospf hello-interval 25.
  4. D
    Enable OSPF for R1 ethernet0/l; configure ip ospf 1 area 0 command under ethernet0/1.

Correct Answer:
B
Looking at the configuration of R1, 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).

Question #40
Scenario -
Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.
Use appropriate show commands to troubleshoot the issues and answer all four questions.

Instructions -
✑ Enter Cisco IOS commands on the device to verify network operation and answer the multiple-choice questions.
✑ THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
✑ Click on the device to gain access to the console of the device. No console or enable passwords are required.
✑ To access the multiple-choice questions, click on the numbered boxes on the left of the top panel.
✑ There are four multiple-choice questions with this task. Be sure to answer all four questions before clicking the Next button.








An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. What is causing the problem?
  1. A
    There is an area ID mismatch.
  2. B
    There is a PPP authentication issue; the username is not configured on R3 and R6.
  3. C
    There is an OSPF hello and dead interval mismatch.
  4. D
    The R3 router ID is configured on R6.

Correct Answer:
D
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.

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