Exam 4A0-116 topic 1 question 33 discussion

Actual exam question from Nokia's 4A0-116

Question #: 33
Topic #: 1

For any of the LFA methods to work properly, there must be a router in the backup path that will forward traffic addressed to the destination without sending it back to the source. Which of the following statements describes the way R-LFA selects such a router?

A. It selects an immediate neighbor.
B. It selects a remote router, reachable through a tunnel defined by a single Node-SID.
C. It selects a remote router, reachable through a tunnel defined by a Node-SID and one or two Adjacency-SIDs.
D. It can select an immediate neighbor or a remote router, as long as the backup path coincides with the path that will become active after IGP reconvergence.

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Suggested Answer: C 🗳️

by hazemsalah87 at June 19, 2023, 9:18 a.m.

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Michanis

6 months, 2 weeks ago

Selected Answer: B

C is false as that describes directed LFAs, immediate neighbor is also false and D describes something closer to TI0LFA. B is the correct answer as remote LFA creates a tunnel to the PQ neighbor using a node SID

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hazemsalah87

8 months, 4 weeks ago

not sure but B looks the correct one

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Exam 4A0-116 topic 1 question 33 discussion

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Michanis

hazemsalah87

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