Nokia 4A0-103 Exam - Topic 5 Question 101 Discussion

Actual exam question for Nokia's 4A0-103 exam

Question #: 101
Topic #: 5

[All 4A0-103 Questions]

What MPLS function should be performed by a router that receives a data packet containing an MPLS label value of 3?

AA router will never receive a packet containing this label value.

BRequest a new label from the peer that provided this label.

CPop the label.

DPUSH an additional label onto the label stack.

ESignal a new label to the peer that sent the packet.

Show Suggested Answer

Suggested Answer: B

by Hyun at Sep 15, 2024, 01:12 AM

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Glennis

5 months ago

B seems off, no need to request a new label for that.

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Janessa

5 months ago

A router can definitely receive packets with label 3, that's a myth!

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Hoa

5 months ago

Wait, are you sure about that? What if the label is still needed?

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Peter

5 months ago

Totally agree, that's how MPLS works.

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Louvenia

6 months ago

C is the right answer, pop the label!

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Deane

6 months ago

I feel like pushing an additional label might be relevant in some scenarios, but it seems more likely that the label would just be popped in this case.

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Loren

6 months ago

I’m a bit confused about whether the router would ever receive a packet with that specific label value.

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Marti

6 months ago

I remember practicing a similar question where we had to identify label operations, and I think popping is definitely a common function.

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Denny

6 months ago

I think the router should pop the label, but I'm not entirely sure if that's the right term for it.

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Anissa

6 months ago

Pushing an additional label onto the stack seems like the wrong approach here. I think the key is understanding what the label value of 3 represents in this context. Time to focus on that.

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Alpha

6 months ago

I'm a bit confused here. Should the router be requesting a new label from the peer? Or is there some other MPLS function I'm missing? I'll have to review my notes on MPLS label operations.

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Rosendo

6 months ago

I'm pretty confident that the answer is to pop the label. That's the standard action for a router when it receives a packet with a specific label value.

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Lynsey

6 months ago

Okay, let's see... A router would never receive a packet with this label value? That doesn't sound right to me. I'll have to rule that one out.

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Jettie

7 months ago

Hmm, this looks like a tricky MPLS question. I'll need to think carefully about the label value of 3 and what that might mean for the router's actions.

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Denise

12 months ago

I wonder if the router comes with a special 'label popping' button. Wouldn't that be convenient?

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Buffy

10 months ago

User 3: Signal a new label to the peer.

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Emmanuel

11 months ago

User 2: Request a new label from the peer.

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Tyisha

11 months ago

User 1: The router should pop the label.

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Levi

12 months ago

Option E? Signaling a new label? What is this, some kind of secret MPLS handshake? I'm sticking with C, the good old-fashioned pop the label approach.

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