Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 11:

  NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?

  A. They are type 7 within the area and are not modified at the ABR

  B. They are type 5 within the area and converted to type 3 at the ABR

  C. They are type 5 within the area and are not modified at the ABR

  D. They are type 7 within the area and converted to type 5 at the ABR

  Correct Answer: D

• Question 12:

  Which of the following statements regarding BGP shortcuts is FALSE?

  A. MPLS tunnels are used to carry transit traffic across the network.

  B. A full mesh of iBGP peering sessions is not required,

  C. Edge and transit routers need to be configured with BGP.

  D. The transit routers need to support LDP or RSVP-TE LSPs.

  Correct Answer: C

• Question 13:

  Which of the following is NOT a characteristic of RIPv1?:

  A. 30 second network updates

  B. Classless routing

  C. Broadcast advertisement

  D. Poison Reverse

  Correct Answer: B

• Question 14:

  Which of the following is considered a best practice for BGP address planning?

  A. Advertising external networks into IGP.

  B. Using system addresses for setting up iBGP sessions.

  C. Exporting the networks associated with the external links of eBGP peers into BGP.

  D. Optimizing BGP route table by exporting IGP routes into BGP.

  Correct Answer: B

• Question 15:

  If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

  A. Manual route summarization can only be done on autonomous system border routers.

  B. Manual route summarization must be done on all the backbone routers to be effective. Manual route summarization is optional on the routers in non-backbone areas.

  C. Manual route summarization is done on the ABRs. By default, automatic summarization is done; however, it may not be optimal for all networks.

  D. Manual route summarization is done on the ABRs. By default, no route summarization is done and all routes are advertised to all areas.

  Correct Answer: D

• Question 16:

  Click the exhibit button.

  

  

  The OSPF adjacency between routers R3 and R1 is down. What is the problem?

  A. Area 1 of router R1 should not be configured as a stub.

  B. Router R3 has the incorrect authentication key type.

  C. Router R1 has the incorrect authentication key type.

  D. There is not enough information to tell.

  Correct Answer: C

• Question 17:

  Click the exhibit button.

  

  In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. How many type 4 LSAs will be present in the network?

  A. One.

  B. One for each of the routers in area 0

  C. One for each of the external routes exported by router R1.

  D. Type 4 LSAs are not generated in this network topology.

  Correct Answer: D

• Question 18:

  A confederated AS is comprised of three members. One member is comprised of 4 routers, while the other two members are comprised of 3 routers each. Assuming member ASs are fully meshed and use full mesh iBGP, what is the required number of BGP sessions within the confederation?

  A. 12

  B. 13

  C. 14

  D. 15

  Correct Answer: D

• Question 19:

  In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3) A. Area ID

  B. Hello and Dead Intervals

  C. Stub flag

  D. DR and BDR addresses

  E. The list of neighbors

  Correct Answer: ABC

• Question 20:

  Click the exhibit.

  

  Router R6 is a route reflector with clients R1, R2, R4 and R5. Router R4 receives three routes from router R6 and is configured with ECMP 3. Given the following BGP configuration on routerR4, how many primary and backup paths will be present in router R4's BGP routing table?

  

  A. Three primary paths,

  B. Two primary paths and one backup path.

  C. One primary path and two backup paths.

  D. One primary path and one backup path.

  Correct Answer: B