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Nokia 4A0-C02 Exam - Topic 4 Question 26 Discussion

A packet is to be encapsulated inside an MPLS tunnel which consists of two MPLS headers at the first network egress. Which of the MPLS EXP fields will be marked?
B) The EXP field in both the top and bottom MPLS headers will be marked.
A) The EXP field in the bottom MPLS header will be marked.
C) For Layer 2 services, the top MPLS header will be marked; for Layer 3 services, the bottom MPLS header will be marked.
D) The EXP field in the top MPLS header will be marked.
E) Neither the top nor the bottom EXP field will be marked since EXP remarking can only be done on the network ingress.

Nokia 4A0-C02 Exam - Topic 4 Question 26 Discussion

Actual exam question for Nokia's 4A0-C02 exam
Question #: 26
Topic #: 4
[All 4A0-C02 Questions]

A packet is to be encapsulated inside an MPLS tunnel which consists of two MPLS headers at the first network egress. Which of the MPLS EXP fields will be marked?

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Suggested Answer: B

by Tiera at May 06, 2022, 12:29 AM

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Felice
7 months ago
Layer 2 vs Layer 3 marking is a bit confusing!
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Nada
7 months ago
Definitely the top MPLS header will be marked.
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Rhea
7 months ago
Surprised to see people think neither gets marked!
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Hillary
8 months ago
I think both headers get marked, right?
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Aretha
8 months ago
The EXP field in the bottom MPLS header will be marked.
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Jannette
8 months ago
I believe the correct answer is that the top MPLS header's EXP field will be marked, but I could be mixing it up with another topic.
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Carey
8 months ago
I'm a bit confused about Layer 2 vs Layer 3 services. Does that mean the marking depends on the type of service being used?
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Glory
8 months ago
I remember something about the EXP field being marked at the egress, but I'm not sure if it's just the bottom header or both.
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Muriel
8 months ago
I think I practiced a question similar to this, and it mentioned that the top MPLS header is usually the one that gets marked.
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Carmela
8 months ago
Hmm, I'm a bit confused by the question. I'm not sure if I fully understand the requirements around distributed session data management. I'll need to review the details more closely.
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Jesusita
8 months ago
I think the Secret Key is only available at the time of the API Key creation; that seems familiar from our practice questions.
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