Nokia Exam 4A0-100 Topic 7 Question 100 Discussion

Actual exam question for Nokia's 4A0-100 exam

Question #: 100
Topic #: 7

What operation is performed by an egress Label Edge Router (eLER) when it receives an MPLS labeled packet?

AIt forwards the packet to the next LSR without altering the MPLS label.

BIt swaps the MPLS label and forwards the packet to the next LSR.

CIt pushes a new MPLS label and forwards the packet to the next LSR.

DIt pops the MPLS label and forwards the packet to the next IP router.

Show Suggested Answer

Suggested Answer: D

by Raina at Sep 13, 2024, 11:04 AM

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3 months ago

B looks good. The eLER swaps the MPLS label and sends it on. That's what I've learned in my MPLS classes.

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2 months ago

I agree, B is the right answer. The eLER's role is to swap the label.

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2 months ago

That's correct. The eLER does indeed swap the MPLS label.

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2 months ago

B) It swaps the MPLS label and forwards the packet to the next LSR.

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3 months ago

I think the answer is D. The eLER pops the MPLS label and forwards the packet to the next IP router, right? Seems straightforward to me.

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3 months ago

B) It swaps the MPLS label and forwards the packet to the next LSR.

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3 months ago

A) It forwards the packet to the next LSR without altering the MPLS label.

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