Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 581:

  Which LSA type is not found in point-to-point only OSPF networks?

  A. Type 1 Router LSA

  B. Type 2 Network LS A

  C. Type 3 Summary LSA

  D. Type 5 External LSA

  Correct Answer: B

• Question 582:

  Which of the following concerning OSPFv3 is TRUE?

  A. OSPFv3 uses MD5 Authentication.

  B. Router LSAs carry IPv6 prefix information.

  C. NSSA is supported in OSPFv3.

  D. OSPFv3 uses a 64-bit router ID.

  Correct Answer: C

• Question 583:

  Click on the exhibit.

  

  The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a 1 Gbps link

  Which of the following is correct?

  A. The router is correctly configured.

  B. A reference-bandwidth is not configured on the router.

  C. A reference-bandwidth is configured on the router but wide-metrics is not.

  D. The interface metric must be manually configured to 100.

  Correct Answer: B

• Question 584:

  Which of the following statements is true of an established LDP session?

  A. It uses a UDP connection with an arbitrary port number.

  B. It uses a UDP connection with well known port number 646.

  C. It uses a TCP connection with an arbitrary port number.

  D. It uses a TCP connection with well known port number 646.

  Correct Answer: D

• Question 585:

  Which of the following about IS-IS level hierarchies is FALSE?

  A. Level 2 routers interconnect the Level 1 areas.

  B. There must be a contiguous Level 2 backbone to enable routing throughout the entire network.

  C. Level 1 routers send packets to the nearest L1/L2 router if the destination is in a different area

  D. Level 2 routers store the Level 1 and Level 2 topology information in a single database.

  Correct Answer: D

• Question 586:

  Click on the exhibit.

  

  Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers.

  All routers have a system address included in IS-IS.

  Which of the following describes the route that router R4 will use to reach the system address of router R6?

  A. Router R4 will have a route to router R6's system address with router R2 as the next- hop.

  B. Router R4 will have a default route with router R2 as the next-hop.

  C. Router R4 will have a default route with router R3 as the next-hop.

  D. Router R4 will not have a route to router R6's system address, nor will it have a default route.

  Correct Answer: C

• Question 587:

  Click on the exhibit button below.

  

  With fast reroute enabled, and given the following:

  Two protected LSPs with the path R1-R2-R3

  Both LSPs enable facility bypass and link protection.

  When router R1 is the PLR, which router becomes the MP?

  A. Router R1

  B. Router R2

  C. Router R3

  D. Router R4

  E. Router R5

  Correct Answer: B

• Question 588:

  Click on the exhibit.

  

  The OSPF adjacency between routers R1 and R3 does not come up. Which of the following is a possible solution to the problem?

  A. Stub must be configured on Area 1 of router R1, and removed from Area 1 on router R3.

  B. Stub must be configured on Area 1 of router R1 and Area 1 of router R3.

  C. Stub must be configured on Area 0 of router R1 and Area 1 of router R3.

  D. Area 1 of router R3 should be Area 0, in order to connect via stub to router R1.

  Correct Answer: B

• Question 589:

  Click on the exhibit.

  

  Given the contents of the Router LSA, which of the following best describes the local topology of the router?

  A. The router has a system interface, one point-to-point interface and one virtual link.

  B. The router has a system interface, one passive interface, one point-to-point interface and one virtual link.

  C. The router has a system interface, one point-to-point interface and one broadcast interface.

  D. The router has a system interface, one passive interface, one point-to-point interface and one broadcast interface.

  Correct Answer: C

• Question 590:

  A new router is added to a broadcast network. What is used by IS-IS as the tie breaker for selecting the DIS if the priorities are the same?

  A. The router with the highest system ID.

  B. The router with the highest loopback address.

  C. The Hello packet with the highest sequence number.

  D. The existing DIS remains the DIS.

  E. The router with the highest interface MAC address.

  Correct Answer: E