[2026] Alcatel-Lucent Border Gateway Protocol - 4A0-102 무료 시험 문제

문제1

What will happen if an update is received with an unrecognized optional non-transitive attribute?

A. The router will accept the update and propagate the attribute.

B. The router will accept the update and ignore the attribute.

C. The router will accept the update and send a notification.

D. The router will not accept the update and send a notification.

정답: B

문제2

An Alcatel-Lucent 7750 SR receives two updates for the same route with local preferences 200 and 300, respectively.
What local preference is sent to eBGP peers?

A. 300

B. 200

C. 100

D. None

정답: D

문제3

Which of the following regarding the atomic aggregate attribute is TRUE?

A. It is an optional transitive attribute.

B. The atomic aggregate flag is always set if the AS Path information is lost due to aggregation.

C. The atomic aggregate flag is always set if the aggregator attribute is set.

D. It is an optional non-transitive attribute.

정답: B

문제4

Two Alcatel-Lucent 7750 SRs are established BGP peers with the following add-paths configuration:
R1: configure router bgp add-paths ipv4 send 4 receive
R2: configure router bgp add-paths ipv4 send 2
If router R1 advertises three routes for a given prefix X, how many routes is router R2 expected to have for prefix X?

A. 2

B. 3

C. 4

D. None

정답: B

문제5

What are the well-known mandatory BGP attributes?

A. Local preference, AS Path and Next Hop.

B. AS Path, Next Hop and Origin.

C. Origin, Next Hop and Local Preference.

D. Aggregator, Next Hop and AS Path.

정답: B

문제6

What is the function of the Cluster_List attribute?

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

B. It is used for loop detection between clusters.

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

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

정답: B

문제7

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 65560.

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

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

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

정답: B

문제8

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 C

B. Option D

C. Option A

D. Option B

정답: B

문제9

Which of the following best describes the relationship between locally configured policies and the direction of traffic?

A. Both import and export policies affect the way the local AS receives traffic, but not the way it sends traffic.

B. Both import and export policies affect the way the local AS sends traffic, but not the way it receives traffic.

C. Import policies affect the way the local AS sends traffic, while export policies affect the way it receives traffic.

D. Import policies affect the way the local AS receives traffic, while export policies affect the way it sends traffic.

정답: C

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