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Free 4A0-102 Exam Braindumps
4A0-102 Alcatel-Lucent Border Gateway Protocol Questions 66–70 (page: 15)

Updated On: 9-Feb-2026
Page 15 of 32
PDF with 152 Questions

Click on the exhibit.

AS 65540 is using MPLS to provide BGP shortcuts for its iBGP routing. AS 65541 is advertising prefix 192.168.1.0/27 into BGP. Which routers have the BGP update for the advertised prefix in their BGP table?

  1. Routers R1, R2, R3, R4 and R5.
  2. Routers R1and R4 only.
  3. Routers R1, R2, R3 and R4 only.
  4. Routers R1, R4 and R5 only.

Answer(s): D



Which of the following parameters does NOT have to match for an iBGP session to be successfully established?

  1. BGP version number.
  2. The local AS number.
  3. The Hold Time.
  4. Authentication.

Answer(s): C



Which of the following regarding the TTL of a BGP message is TRUE?

  1. TTL is a well-known mandatory BGP attribute.
  2. The default TTL value of an eBGP message is 1, and 64 for an iBGP message.
  3. The default TTL value of an iBGP message can be modified using the multihop command.
  4. The default TTL value of an eBGP message can be modified using the "ttl-security" command.

Answer(s): B



Which of the following about a single-homed AS is FALSE?

  1. A single-homed AS is also known as a stub AS.
  2. A single-homed AS is also known as a leaf AS.
  3. A single-homed AS uses either the ISP AS number or a private AS number.
  4. A single-homed AS can be either transit or non-transit

Answer(s): D



Click the exhibit.


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

  1. ISP 1 is downstream from ISP 3 and is expected to push more traffic toward ISP 3 than it pulls from it.
  2. ISP 3 is downstream from ISP 1 and is expected to push more traffic toward ISP 1 than it pulls from it.
  3. ISP 1 is downstream from ISP 3 and is expected to pull more traffic from ISP 3 than it pushes toward it.
  4. ISP 3 is downstream from ISP1 and is expected to pull more traffic from ISP 1 than it pushes toward it.

Answer(s): C



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