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Exam 4A0-101 topic 4 question 21 discussion

Actual exam question from Alcatel-Lucent's 4A0-101
Question #: 21
Topic #: 4
[All 4A0-101 Questions]

Click on the exhibit.

Router R5 is advertising the three loopbacks prefixes shown in OSPFv3. The following command is executed on router R1: R1# configure router ospf3 area 0 area-range FD00:11:11:5000:764.
Which of the following is TRUE regarding the OSPFv3 LSDB on R6?

  • A. Router R6 will have a single Router LSA that describes the summary prefix.
  • B. Router R6 will have three Router LSAs - one to describe each loopback prefix.
  • C. Router R6 will have a single Inter-Area Prefix LSA to describe the summary prefix.
  • D. Router R6 will have three Inter-Area Prefix LSAs - one to describe each loopback prefix.
  • E. Router R6 will not have any LSAs to describe the loopback prefix or the summarized prefix.
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Suggested Answer: C 🗳️
by snowblack at Nov. 20, 2020, 2:29 p.m.

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DracoD
4 years, 2 months ago
Shouldn't the Answer be D. The area-range summarization for the 3 loopbacks attached to R5 should have been applied on R1 on the 'area 1' context to summarize the routes. Since it applied on the wrong area, R6 could still get a IEP LSAs for each of the loopbacks.
upvoted 2 times
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snowblack
4 years, 3 months ago
FD00:11:11:5000::/64
upvoted 2 times
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