Nokia Exam 4A0-107 Topic 8 Question 42 Discussion

Actual exam question for Nokia's 4A0-107 exam

Question #: 42
Topic #: 8

A frame belonging to a Layer 2 service is encapsulated in an MPLS tunnel at a network-egress port. Which of the following fields in the frame can be marked or remarked at the network egress port?

AToS

BDSCP

CPREC

DEXP

Show Suggested Answer

Suggested Answer: C

by Barbra at Mar 31, 2023, 06:36 AM

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Theresia

1 months ago

Ah, the joys of networking terminology! I bet the correct answer is hidden somewhere in the depths of the OSI model, just waiting to trip us up. Time to dust off my networking textbooks and prepare for battle!

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Kristofer

1 months ago

Haha, this question is making my head spin! I'm going to go with B) DSCP and hope for the best. If all else fails, I'll just start guessing random letters like a game of Hangman.

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Ivette

1 months ago

Wait, I thought the answer was C) PREC. Isn't that the same as DSCP? I'm getting all these QoS fields mixed up. Someone please enlighten me!

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Samira

1 days ago

B) DSCP

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Zoila

7 days ago

A) ToS

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Derick

2 months ago

I'm not so sure about that. I think the answer might be D) EXP. The EXP field is part of the MPLS header, which is used to encapsulate the Layer 2 frame, so it can be manipulated at the egress port.

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Darrin

22 days ago

Thanks for clarifying. It's good to know that the EXP field can be manipulated at the egress port.

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Freeman

23 days ago

Yes, that's correct. The EXP field is specifically used for traffic prioritization in MPLS networks.

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Aron

1 months ago

I think you're right. The EXP field in the MPLS header can be marked or remarked at the network egress port.

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Yan

2 months ago

I think the answer is B) DSCP. The DSCP field is part of the IP header, which is encapsulated within the Layer 2 frame, so it can be remarked at the network egress port.

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