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Nokia 4A0-106 Exam - Topic 2 Question 82 Discussion

For the Inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?
B) ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.
A) PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.
C) ASBR2 swaps the BGP label and pushes an LDP transport label.
D) PE2 pops all labels and forwards the unlabeled packet to its destination.

Nokia 4A0-106 Exam - Topic 2 Question 82 Discussion

Actual exam question for Nokia's 4A0-106 exam
Question #: 82
Topic #: 2
[All 4A0-106 Questions]

For the Inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

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Suggested Answer: B

by Wilson at Jan 23, 2025, 01:05 AM

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Cathrine
6 months ago
Totally agree, D seems like the false one here!
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Marti
6 months ago
Wait, does PE2 really pop all labels? That seems off.
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Tricia
7 months ago
Sounds about right, but I'm not sure about ASBR2's role.
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Frank
7 months ago
I think ASBR1 just pops the LDP label, right?
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Lyla
7 months ago
PE1 definitely pushes three labels, that's standard.
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Lenna
7 months ago
I’m pretty sure PE2 does pop all the labels, but I wonder if it really forwards the unlabeled packet directly to the destination. That seems a bit off.
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Salina
7 months ago
I feel like ASBR2 should be swapping the BGP label, but I'm not confident about whether it pushes an LDP transport label afterward.
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Meaghan
8 months ago
I think option B sounds familiar from a practice question, but I can't recall if ASBR1 actually pops the LDP label before swapping the BGP label.
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Weldon
8 months ago
I remember studying the label stacking process, but I'm not entirely sure if PE1 really pushes three labels. That seems like a lot.
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Floyd
8 months ago
This looks like a tricky one, but I'm going to carefully analyze each option and think through the label operations step-by-step to determine which one is false.
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Corinne
8 months ago
I'm a bit confused by the different label types mentioned. I'll need to double-check my understanding of BGP, LDP, and VPN labels and how they're used in an Inter-AS VPRN.
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Mertie
8 months ago
Okay, I think I've got this. The key is to identify which of the label operations described is not accurate for this scenario.
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Hoa
8 months ago
Hmm, the labels mentioned in the options seem to be the key here. I'll need to review my notes on MPLS label stacking and how it's used in Inter-AS VPRNs.
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Barbra
8 months ago
This question looks pretty straightforward, but I want to make sure I understand the details of the Inter-AS VPRN model before answering.
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Elouise
1 year ago
Hmm, I see your point. Maybe I need to reconsider my answer.
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Queen
1 year ago
I agree with Ellen, A seems like the correct option based on the Inter-AS model.
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Ellen
1 year ago
But A makes sense because PE1 pushes three labels for VPN, BGP, and LDP.
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Curt
1 year ago
Is it just me, or does this whole Inter-AS VPRN thing sound like a secret government agency? I wonder if they have cool code names too.
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Darrel
1 year ago
This question is making my head spin. I bet the real answer is 'all of the above' and the exam writers are just trying to confuse us.
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Melina
1 year ago
I think you're all wrong. The correct answer is D) PE2 pops all labels and forwards the unlabeled packet to its destination.
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Theola
1 year ago
I'm not sure, but I think it might be C) ASBR2 swaps the BGP label and pushes an LDP transport label.
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Raul
1 year ago
No, I believe it's B) ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.
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Portia
1 year ago
I think the answer is A) PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.
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Gene
1 year ago
Wait, is this a trick question? I feel like the answer is hidden in the image or something. Gotta keep my eyes peeled!
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Zoila
1 year ago
User 2: No, I believe it's B) ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.
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Carisa
1 year ago
User 1: I think the answer is A) PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.
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Pok
1 year ago
Hmm, I'm a bit unsure about this one. The labels and swapping seem a bit complex for my taste.
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Elouise
1 year ago
I disagree, I believe it's C.
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Ellen
1 year ago
I think the answer is A.
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Josue
1 year ago
Hold up, I think D is the false statement here. PE2 should pop all the labels, not forward the unlabeled packet.
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Dacia
1 year ago
User2: Yeah, that doesn't sound right. PE2 should pop all labels.
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Twanna
1 year ago
User1: I agree, PE2 should not forward the unlabeled packet.
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Mignon
1 year ago
I'm pretty sure the correct answer is A. The PE1 router should push three labels on the IP packet.
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Dottie
1 year ago
User 3: ASBR2 swaps the BGP label and pushes an LDP transport label.
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Raymon
1 year ago
User 2: ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.
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Anisha
1 year ago
User 1: I think you're right, PE1 should push three labels on the IP packet.
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