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Nokia 4A0-104 Exam - Topic 1 Question 103 Discussion

Which of the following statements is TRUE concerning a VPRN data plane flow?
E) All of the above statements are false.
A) A data packet will receive a service label at the CE and a transport label at the ingress PE.
B) A data packet intended for a remote CE will have its service label swapped at each P router along the path towards the egress PE.
C) At the egress PE, the transport label will be popped and the data packet forwarded with the service label.
D) The service label is popped by the remote CE. The unlabeled packet is forwarded based on the longest match lookup algorithm in the VRF.
F) All of the above statements are true.

Nokia 4A0-104 Exam - Topic 1 Question 103 Discussion

Actual exam question for Nokia's 4A0-104 exam
Question #: 103
Topic #: 1
[All 4A0-104 Questions]

Which of the following statements is TRUE concerning a VPRN data plane flow?

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Suggested Answer: E

by Audra at Aug 17, 2025, 10:52 AM

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Dominga
8 months ago
Wait, are we sure about B? Sounds off to me.
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Arleen
9 months ago
Totally agree, that’s how it works!
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Audry
9 months ago
A is correct, service label at CE and transport label at ingress PE.
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Willodean
9 months ago
C is definitely true, popping the transport label at egress PE is standard.
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Adelle
9 months ago
All of them false? That’s surprising!
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Afton
9 months ago
I feel like I came across a similar question where all statements were false, but I can't remember if that's the case here too.
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Terina
10 months ago
I'm a bit confused about option B; I thought service labels were swapped at the egress PE, not at each P router.
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Shawana
10 months ago
I think option C sounds familiar because I practiced a question about how labels are popped at the egress PE, but I can't recall if the service label is involved there.
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Elenor
10 months ago
I remember that in VPRN, the service label is usually assigned at the ingress PE, but I'm not sure about the details of how it's handled at the CE.
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Veronique
10 months ago
I've seen questions like this before, so I think I have a good handle on it. I'll quickly review the key concepts and then select the right answer.
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Brock
10 months ago
The wording of this question is a bit tricky. I'll need to pay close attention to the details to make sure I don't miss anything.
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Glen
11 months ago
Okay, let me think this through step-by-step. I know the CE adds a service label and the PE adds a transport label, but I'm not sure about the details of how they're used. I'll need to carefully read each option.
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Cheryll
11 months ago
Hmm, I'm a bit confused about the difference between the service label and the transport label. I'll need to review that before attempting this.
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Desiree
11 months ago
This question seems pretty straightforward. I'm pretty confident I can figure this out.
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Cyndy
1 year ago
I think C is the correct answer. The transport label is popped at the egress PE, and the data packet is forwarded with the service label.
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Tora
11 months ago
C) At the egress PE, the transport label will be popped and the data packet forwarded with the service label.
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Reena
12 months ago
A) A data packet will receive a service label at the CE and a transport label at the ingress PE.
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Viva
1 year ago
I think the answer is A.
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