Nokia Nokia Certifications 4A0-102 Questions & Answers

• Question 41:

  Which of the following is FALSE regarding the 16-bit public autonomous system numbers?

  A. They are allocated to the RIRs by ICANN/IANA.

  B. They are used when connecting ASs on the Internet.

  C. They range from 1 to 56319.

  D. They are assigned by the ISPs for enterprise networks.

  Correct Answer: D

• Question 42:

  Upon the successful establishment of a TCP session between peers, what type of BGP message is exchanged?

  A. OpenSent

  B. Keepalive

  C. Open

  D. Notification

  E. Update

  Correct Answer: C

• Question 43:

  What is the default Alcatel-Lucent 7750 SR TTL of a BGP advertisement between confederation members?

  A. 1

  B. 32

  C. 64

  D. 255

  Correct Answer: A

• Question 44:

  Which of the following regarding route reflectors is TRUE?

  A. Only the route reflector is configured with a cluster id.

  B. There can only be one route reflector in a cluster.

  C. Clients should have iBGP sessions with each other to maintain the mesh.

  D. There can only be one level of route reflectors in the topology.

  Correct Answer: A

• Question 45:

  Click the exhibit.

  

  When router A receives the BGP update for the 192.168.0.1/27 prefix, it propagates it to routers B and C. What action is taken by router B when it receives the update?

  A. Router B propagates the BGP update to routers D and C.

  B. Router B propagates the BGP update to router D.

  C. Router B detects duplicates in its BGP database and discards the update.

  D. Router B propagates the update to routers A, C and D.

  Correct Answer: B

• Question 46:

  From what range are 16-bit private AS numbers selected?

  A. 64496 ?64511

  B. 1 ?56319

  C. 64512-65534

  D. 64513-65535

  E. There are no defined private AS numbers; there are only private IP addresses.

  Correct Answer: C

• Question 47:

  Click the exhibit.

  

  Routers RR1 and RR2are route reflectors with clients R1x and R2x, respectively. Routers RR1 and RR2 are non-clients of each other, and router R1 is a non-client of both.

  Which of the following regarding BGP sessions in AS 65540 is TRUE?

  A. Router R1must have at least one BGP session to each of routers R1x and R2x.

  B. Routers R1, RR1 and RR2 must be fully meshed.

  C. Routers R1x and R2x must have at least one BGP session between them.

  D. Routers R1x as well as routers R2x must be fully meshed.

  Correct Answer: B

• Question 48:

  An Alcatel-Lucent 7750 SR is configured with a local preference of 250. If it receives a BGP update with a local preference of 500, what local preference is sent to its eBGP peers?

  A. 100

  B. 250

  C. 500

  D. None

  Correct Answer: D

• Question 49:

  Which of the following is NOT a BGP message type?

  A. Route-Refresh

  B. OpenSent

  C. Notification

  D. Update

  E. Keepalive

  Correct Answer: B

• Question 50:

  What is the result of configuring the following policy statement as a BGP import policy on the Alcatel-Lucent 7750 SR?

  

  A. All BGP routes are accepted.

  B. All routes matching prefix lists "List-1" and "List-2" are rejected.

  C. BGP routes matching prefix lists "List-1" or "List-2" are rejected.

  D. BGP routes matching prefix lists "List-1" and "List-2" are rejected.

  Correct Answer: C