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Exam 4A0-101 topic 4 question 52 discussion

Actual exam question from Alcatel-Lucent's 4A0-101
Question #: 52
Topic #: 4
[All 4A0-101 Questions]

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The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.
After IPv6 has been configured, which of the following is TRUE?

  • A. Router R2 has two IS-IS-adjacencies and two LSPs.
  • B. Router R2 has two IS-IS-adjacencies and four LSPs.
  • C. Router R2 has two IS-IS-adjacencies and three LSPs.
  • D. Router R2 has four IS-IS-adjacencies and six LSPs.
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Suggested Answer: C 🗳️
by snowblack at Nov. 20, 2020, 3:03 p.m.

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snowblack
4 years, 3 months ago
Why 3 LSP my friends?
upvoted 3 times
alfred09
4 years, 3 months ago
same question here.
upvoted 1 times
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Kri8or
3 years, 11 months ago
According to wat I've found out, adjacency between devices is an L2. So there should be 3 LSPs, one for each - one L2 LSP for R2, one L2 LSP for R3 and one L2 LSP for R1.
upvoted 2 times
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