ExamTopics Logo
Mail Us[email protected]
Menu
Alcatel-Lucent Discussions
exam questions

Exam 4A0-103 All Questions

View all questions & answers for the 4A0-103 exam
Go to Exam

Exam 4A0-103 topic 2 question 23 discussion

Actual exam question from Alcatel-Lucent's 4A0-103
Question #: 23
Topic #: 2
[All 4A0-103 Questions]

Click on the exhibit button below. Assume the following:

- The protected path is R1-R2-R3-R6.
- Fast reroute one-to-one protection is enabled.
If the original LSP already has two labels, and router R2 has failed, how many labels will there be in packets on the detour path?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by Manuel1990 at Oct. 31, 2020, 6:19 p.m.

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Submit Cancel
ablongo
6 months, 4 weeks ago
Correct Answer: B Facility backup takes advantage of the MPLS label stacking capability and uses a third label to encapsulate the protected traffic and carry it through the bypass tunnel. Note that the traffic encapsulation mechanism used is different from the encapsulation used for one-to-one backup.
upvoted 2 times
...
sushant1991dhar
1 year, 5 months ago
The question says FRR is used so I think C is the answer
upvoted 1 times
Aessedai
1 year, 1 month ago
no, don't believe so - it's not facility backup which is where you'd have the additional label i.e. 3
upvoted 1 times
...
...
Manuel1990
1 year, 5 months ago
I think is C FRR add a new label in the detour path
upvoted 1 times
z3r0
1 year, 5 months ago
Only when FRR facility is used, the correct answer is B
upvoted 2 times
...
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
exam
Someone Bought Contributor Access for:
SY0-701
London, 1 minute ago