Nokia Nokia Certifications 4A0-102 Questions & Answers

• Question 71:

  The configuration of an Alcatel-Lucent 7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?

  

  A. Router R1forms an iBGP session with router R2, and an eBGP session with router R3.

  B. Router R1forms iBGP sessions with routers R2 and R3.

  C. Router R1forms eBGP sessions with routers R2 and R3.

  D. The types of BGP sessions with routers R2 and R3 cannot be determined.

  Correct Answer: D

• Question 72:

  What is the purpose of configuring a triggered-policy on an Alcatel-Lucent 7750 SR?

  A. Policy changes are delayed until the peer router with the affected routes reboots.

  B. Policy changes are delayed until route updates for affected BGP routes are received from peers.

  C. Policy changes are delayed until BGP sessions are cleared or BGP is reset.

  D. Policy changes are delayed until the router reboots.

  Correct Answer: C

• Question 73:

  Click the exhibit.

  

  Which of the following about the relationship between ISP 1 and ISP 3 is TRUE?

  A. ISP 1 is downstream from ISP 3 and is expected to push more traffic toward ISP 3 than it pulls from it.

  B. ISP 3 is downstream from ISP 1 and is expected to push more traffic toward ISP 1 than it pulls from it.

  C. ISP 1 is downstream from ISP 3 and is expected to pull more traffic from ISP 3 than it pushes toward it.

  D. ISP 3 is downstream from ISP1 and is expected to pull more traffic from ISP 1 than it pushes toward it.

  Correct Answer: C

• Question 74:

  Click the exhibit.

  

  Routers RR1 are RR2 are redundant route reflectors for clients R3 and R4. Which of the following is a valid configuration on router R3?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 75:

  Which of the following regarding BGP confederations is FALSE?

  A. The entire confederation is viewed as a single AS by an eBGP peer.

  B. Within a confederation, each member AS is considered as a stand-alone AS.

  C. Member ASs within a confederation can use route reflection.

  D. Member ASs must be fully meshed within a confederation.

  Correct Answer: D

• Question 76:

  What is the function of the Cluster_List attribute?

  A. It is used for loop detection within the same cluster.

  B. It is used for loop detection between clusters.

  C. It is used for loop detection in a confederation.

  D. It is used to identify the route reflectors within an AS.

  Correct Answer: B

• Question 77:

  Which of the following prefix lists include prefixes 192.168.128.0/17 and 192.168.64.0/18?

  A. Prefix list 192.168.0.0/16 through 18.

  B. Prefix 192.168.0.0/17 longer.

  C. Prefix list 192.168.0.0/17 through 18.

  D. Prefix 192.160.0.0/13 longer.

  Correct Answer: A

• Question 78:

  What kind of BGP attribute is the Local Preference?

  A. Optional transitive attribute.

  B. Optional non-transitive attribute.

  C. Well-known mandatory attribute.

  D. Well-known discretionary attribute.

  Correct Answer: D

• Question 79:

  An Alcatel-Lucent 7750 SR has the BGP configuration shown below. Assuming the router has established BGP sessions to routers R1 and R2, which of the following is TRUE?

  

  A. Both neighbors R1and R2 should be part of AS 65540.

  B. Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65540.

  C. Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65560.

  D. Both neighbors R1and R2 should be part of AS 65560.

  Correct Answer: C

• Question 80:

  Which of the following statements about the BGP Advertise External feature is FALSE?

  A. It modifies the BGP advertisement logic.

  B. It improves convergence times and allows for better load sharing.

  C. It allows a router to advertise multiple external paths for a single prefix.

  D. It supports both IPv4 and IPv6.

  Correct Answer: C