ExamTopics Logo
Mail Us[email protected]
Menu
Juniper Discussions
exam questions

Exam JN0-361 All Questions

View all questions & answers for the JN0-361 exam
Go to Exam

Exam JN0-361 topic 1 question 31 discussion

Actual exam question from Juniper's JN0-361
Question #: 31
Topic #: 1
[All JN0-361 Questions]

Click the Exhibit.

Referring to the exhibit, which two statements are true? (Choose two.)

  • A. The LSP is protected with link protection.
  • B. The last node in the path will not pop the MPLS label.
  • C. The last node in the path will pop the MPLS label.
  • D. The LSP is protected with fast reroute.
Show Suggested Answer Hide Answer
Suggested Answer: AC 🗳️
by MA at Aug. 11, 2019, 10:43 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
mohdema
2 years, 5 months ago
Selected Answer: AB
As per JNCIS-SP practice exam In the output you can see that the LSP will be doing Penultimate hop popping which means that the penultimate router will Pop the MPLS label, and not the ultimate router (egress). The output also shows that Link Protection is desired for this LSP. You can also see in the messages that link protection is Up and functional
upvoted 1 times
...
kkched
3 years, 8 months ago
A & C 1. A because of link protected desired 2. C because of penhultimate hop popping (It would have been B if it was ultimate hop popping)
upvoted 1 times
...
networkingcontrol
5 years, 4 months ago
A,B because of PHP is enabled.
upvoted 3 times
...
Vir
5 years, 6 months ago
I think A and B are the correct answer, because penultimate hop popping is enable. Check: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/mpls-ultimate-hop-popping-enabling.html
upvoted 3 times
mike95
4 years, 8 months ago
penultimate hop popping is the default MPLS behavior and this means the next to last router pops the label before sending to the ultimate hop router
upvoted 3 times
...
...
MA
5 years, 8 months ago
the penultimate (or second to last) router pops the label stack in penultimate hop popping.
upvoted 2 times
vanvoust
4 years, 5 months ago
second to last router pops the label stack in penultimate hop popping ==> last router has nothing to pop
upvoted 1 times
...
...
MA
5 years, 8 months ago
A & C is correct. Link is protected and penultimate-hop switch removes the label and sends the packet to the egress PE switch. The default advertised label is label 3 (Implicit Null label). If label 3 is advertised, the penultimate-hop switch removes the label and sends the packet to the egress PE switch
upvoted 1 times
vanvoust
4 years, 5 months ago
Link is protected and penultimate-hop switch removes the label and sends the packet to the egress PE switch ==>So last node in the path will have no label to pop :) Answer is A & B
upvoted 5 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