Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 781:

  What is the protocol number for OSPF in the IP header?

  A. OSPF uses TCP, so the protocol number is 6.

  B. OSPF uses UDP, so the protocol number is 17.

  C. OSPF does not use IP.

  D. OSPF has its own protocol number of 89.

  Correct Answer: D

• Question 782:

  When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?

  A. The MTU does not match on both interfaces

  B. OSPF is not enabled on one of the routers

  C. The Router ID is the same on both routers

  D. A OSPF Hello has not been received from the neighbor

  Correct Answer: A

• Question 783:

  A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on an Alcatel-Lucent 7750 SR?

  A. traceroute 2.3.4.1

  B. traceroute 2.3.4.0/24 next-hop 1.2.3.4

  C. traceroute next-hop 1.2.3.4

  D. traceroute does not work on the Alcatel-Lucent 7750 SR

  Correct Answer: A

• Question 784:

  What is the default inbound metric for RIP on the Alcatel-Lucent 7750 SR?

  A. Whatever the advertised metric happens to be.

  B. A value of 1.

  C. This must be administratively set as there is no default value.

  D. A value of 15.

  Correct Answer: B

• Question 785:

  Click the exhibit button.

  

  In the IS-IS network shown, router R1 has been configured to summarize network 20.20.1.0/24 and 20.20.2.0/24 as 20.20.0.0/16. Which router's routing table will be reduced compared to the routing table before the summarization?

  A. Router R1

  B. Router R2

  C. Routers R1 and R2

  D. Router R4

  Correct Answer: B

• Question 786:

  What command will show the IS-IS neighbors, and their status on an Alcatel-Lucent 7750 SR?

  A. Show isis neighbors

  B. Show router isis neighbors

  C. Show router isis adjacency

  D. Show isis adjacency

  Correct Answer: C

• Question 787:

  Which of the following statements apply to link state protocol behavior? Choose three answers.

  A. Routers broadcast the entire route table to all neighbors.

  B. Information about directly connected links is sent to all neighbors.

  C. An adjacency database is maintained by each router.

  D. The sequence number for an update is incremented as it is flooded from router to router.

  E. The topological database is the same for all routers in a single area.

  Correct Answer: BCE

• Question 788:

  What value should the AFI be set to for locally administered addressing?

  A. 1

  B. 49

  C. 83

  D. 0

  Correct Answer: B

• Question 789:

  Which of the following OSPF area types are supported by the Alcatel- Lucent 7750 SR? Choose two answers.

  A. Not so stubby areas

  B. Level1 area WC

  C. Stub areas

  D. Partially stubby areas

  E. Level 2 areas

  Correct Answer: AC

• Question 790:

  Which of the following best describes the actions after an IS-IS router receives on a broadcast interface, a newer LSP than the one in its database?

  A. The router sends a copy of the LSP from its database to its neighbor

  B. The router updates its database with the LSP and floods a copy to its other neighbors.

  C. The router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a copy to its other neighbors.

  D. The router updates its database with the LSP and acknowledges it with a PSNP.

  Correct Answer: B