Alcatel-Lucent Border Gateway Protocol - 4A0-102 Exam Practice Test

Question 1

An Alcatel-Lucent 7750 SR receives a route from an eBGP peer with a MED value of 500. What MED value is sent to
iBGP peers?

A. The IGP cost

B. 100

C. 500

D. None

Correct Answer: C

Question 2

Which of the following statements regarding BGP Add-Paths is FALSE?

A. Add-Paths allows non-best paths to be advertised to a peer.

B. Add-Paths capabilities are exchanged between peers after the BGP session is established.

C. A BGP speaker must advertise the capability to receive multiple paths from its peer.

D. A BGP speaker must advertise the capability to send multiple paths to its peer.

Correct Answer: B

Question 3

Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of
200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6. Assuming that router R6 is configured with
"advertise-external", what is the expected output of "show router bgp routes" when executed on router R1?

A. Option D

B. Option B

C. Option A

D. Option C

Correct Answer: A

Question 4

Why is a full mesh of iBGP peers required?

A. To ensure that all routers are directly connected.

B. To ensure that all routers run iBGP inside a transit AS.

C. To ensure proper route propagation inside a transit AS.

D. To maximize control plane scalability.

Correct Answer: C

Question 5

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 BGP routes matching prefix list "List-1" are rejected.

C. All routes matching prefix list "List-1" are rejected.

D. All BGP routes are rejected.

Correct Answer: B

Question 6

Which of the following regarding route reflectors is TRUE?

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

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

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

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

Correct Answer: D

Question 7

Click the exhibit.

Router R1 is advertising prefix 192.168.1.0/27 with community "no-export. Which routers will receive an update for
that prefix?

A. Router R2 only.

B. Routers R2, R3, R4and R5.

C. Routers R2, R3 and R4 only.

D. Routers R2 and R3 only.

Correct Answer: B

Question 8

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

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

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

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

Correct Answer: D

Question 9

What is the function of the Cluster_List attribute?

A. It is used for loop detection between clusters.

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

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

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

Correct Answer: A

Question 10

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

A. Update

B. Open

C. Keepalive

D. Notification

E. OpenSent

Correct Answer: B

Alcatel-Lucent Border Gateway Protocol - 4A0-102 Exam Practice Test

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