Nokia Nokia Certifications 4A0-101 Questions & Answers

• Question 81:

  Click on the exhibit.

  

  What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

  A. Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of hello timeouts.

  B. Convergence is triggered when the physical interfaces between routers R1 and R2 go down.

  C. Convergence will not be triggered because switches cannot run routing protocols between them.

  D. Convergence is triggered when the switches notify the routers about the link-state info.

  E. Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down.

  Correct Answer: A

• Question 82:

  Which of the following is not included in a Router LSA?

  A. Operationally down interfaces in OSPF

  B. Fully adjacent virtual links

  C. Waiting state broadcast links

  D. Fully adjacent point-to-point links

  E. Loopback Interfaces in OSPF

  Correct Answer: A

• Question 83:

  Click on the exhibit.

  

  The numbers beside the links are the metrics for that link.

  Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?

  A. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R5-R3-R2)

  B. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4R3-R2)

  C. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R6-R4-R3R2)

  D. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8) Router R8 to R2 will follow (R8-R7-R5-R3-R2)

  Correct Answer: A

• Question 84:

  Click on the exhibit.

  

  The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers. After IPv6 has been configured, which of the following is TRUE?

  A. Router R2 has two IS-IS-adjacencies and two LSPs.

  B. Router R2 has two IS-IS-adjacencies and four LSPs.

  C. Router R2 has two IS-IS-adjacencies and three LSPs.

  D. Router R2 has four IS-IS-adjacencies and six LSPs.

  Correct Answer: C

• Question 85:

  Which of the following is a difference between IS-IS and OSPF?

  A. IS-IS supports VLSM and CIDR.

  B. IS-IS uses OSI addressing.

  C. IS-IS supports manual summarization

  D. IS-IS uses periodic Hello messages.

  Correct Answer: C

• Question 86:

  The following are statements about fields in the Hello packet that must match in order to form an OSPF adjacency. Which statement is correct?

  A. The area ID does not have to match.

  B. The value of the E bit in the options field does not have to match.

  C. The value of the Hello interval does not have to match.

  D. The value of the network mask does not have to match.

  E. The area ID, the E bit value, the Hello interval and network mask must all match.

  Correct Answer: E

• Question 87:

  Click on the exhibit.

  

  Given the output shown, which router is the ASBR in this network?

  A. 10.10.10.2

  B. 10.10.10.3

  C. 10.10.10.4

  D. 10.10.10.6

  E. There is no ASBR configured in the network.

  Correct Answer: E

• Question 88:

  Click on the exhibit.

  

  OSPF is operational on all links in the network diagram, all routers are the same cost, and all routers are configured with an ECMP value of 4. Router R5 advertises the prefix 192.168.3.0/24 into OSPF.

  How many entries for prefix 192.168.3.0/24 will be in router R3's routing table?

  A. 0

  B. 1

  C. 2

  D. 3

  E. 4

  Correct Answer: C

• Question 89:

  Which of the following is NOT a characteristic of a floating static route?

  A. The primary and backup routes are to the same destination.

  B. The primary and backup routes appear in the routing table.

  C. The backup route is configured with a higher preference value.

  D. The next-hop of the primary and backup routes are different.

  Correct Answer: B

• Question 90:

  Click on the exhibit.

  

  Which of the following would you expect to see in router R4's OSPF database?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C