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4A0-102 Online Practice Questions and Answers

Questions 4

The following policies are configured and exported using "export "Policy-1" "Policy-2"". Assuming both "Client-1" and "Client-2" are properly defined on the router, which routes are advertised?

A. Client-1 routes only.

B. Client-2 routes only.

C. Client-1 and Client-2 routes.

D. Neither Client-1 nor Client-2 routes.

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Questions 5

Which of the following statements about an autonomous system is FALSE?

A. An AS is a set of routers under a single technical administration.

B. An AS efficiently advertises all IGP known routes to other ASs.

C. An AS presents a consistent routing policy to other autonomous systems.

D. An AS has a 2-byte or 4-byte AS number assigned.

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Questions 6

Which of the following regarding BGP Path Identifier is FALSE?

A. Path-ID is a four-octet identifier pre-pended to the NLRI field of a BGP update.

B. Path-ID is an optional transitive attribute used to advertise multiple paths.

C. Path-ID uniquely identifies each path advertised to a neighbor.

D. A BGP speaker that re-advertises a route must generate its own Path-ID.

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Questions 7

Which of the following statements regarding BGP route selection is TRUE?

A. Lower local preference is preferred over higher local preference.

B. Higher MED is preferred over lower MED.

C. Higher origin code is preferred over lower origin code.

D. Lower BGP router ID is preferred over higher BGP router ID.

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Questions 8

Which of the following is TRUE if the local state of BGP is OpenConfirm?

A. The local system has received a Keepalive message and is ready to exchange updates.

B. The local system is exchanging Update messages with its neighbor.

C. The local system has sent a Keepalive message to its neighbor and is waiting to receive one back.

D. The local system has sent an Open message to its neighbor and is waiting to receive one back.

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Questions 9

Click the exhibit.

Assuming a full iBGP mesh in ISP 1, how does router R1 in ISP 1 handle a BGP update received from ISP 2?

A. The update is sent to router R2 in ISP 1.

B. The update is sent to routers R2 and R3 in ISP 1.

C. The update is sent to all routers in ISP 1.

D. The update is sent to routers R2 and R3 in ISP 1, and to router R3 in ISP 2.

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Questions 10

Which regular expression will match the AS Path of a route originating in remote AS 65100?

A. ".+ 65100"

B. "65100.+"

C. ".* 65100.*"

D. "65100"

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Questions 11

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. None

B. 2

C. 3

D. 4

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Questions 12

A router in AS 65100 receives three routes for 138.120.0.0/16. The first route has an AS Path of 65200 65400 65300 and a local preference of 150. The second route has an AS Path of 65200 65300 and a local preference of 100. The third route has an AS path of 65600 65300 and a local preference of 200. Which route will appear in the RIB-In?

A. Only the first route will appear in the RIB-In.

B. Only the second route will appear in the RIB-In.

C. Only the third route will appear in the RIB-In.

D. All routes will appear in the RIB-In.

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Questions 13

What are the well-known mandatory BGP attributes?

A. Origin, Next Hop and Local Preference.

B. Local preference, AS Path and Next Hop.

C. Aggregator, Next Hop and AS Path.

D. AS Path, Next Hop and Origin.

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Exam Code: 4A0-102
Exam Name: Alcatel-Lucent Border Gateway Protocol
Last Update: Mar 19, 2024
Questions: 152
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