Nokia Exam 4A0-104 Topic 1 Question 97 Discussion

Actual exam question for Nokia's 4A0-104 exam

Question #: 97
Topic #: 1

A customer requests that their Layer 2 Ethernet service be configured to forward frames up to 1500 bytes. The service provider is using MPLS encapsulation (without RSVP-TE fast-reroute) on their IP/MPLS network. What is the minimum MTU setting for the network ports?

A1512

B1522

C1536

D1542

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Suggested Answer: B

by Stephanie at Apr 05, 2025, 04:58 PM

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Eva

1 months ago

Wow, this question is really making my head spin. Maybe I should have studied more about MPLS encapsulation before taking this exam. Or maybe I should have just asked the network admin to fill out the answer for me. *sigh*

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Margot

17 days ago

Don't worry, I think the answer is C) 1536.

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Ellen

1 months ago

I'm going to have to disagree with you all. The answer is A) 1512. Why? Because the customer specifically requested 1500-byte frames, and the MPLS header is already accounted for. Anything more would be overkill!

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Loren

4 days ago

A) 1512

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Arminda

1 months ago

This question is a piece of cake! The answer is clearly B) 1522. I mean, who doesn't know that the MPLS header adds 4 bytes to the frame size?

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Callie

2 months ago

D) 1542 is the correct answer. The MPLS header adds 4 bytes, and the service provider should account for an additional 38 bytes for the Ethernet header and trailer.

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Elvera

4 days ago

D) 1542 is the correct answer.

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Tayna

5 days ago

D) 1542

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Art

10 days ago

C) 1536

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Mable

11 days ago

B) 1522

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Curt

26 days ago

A) 1512

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Wilbert

2 months ago

Hmm, I'm gonna go with C) 1536. That should be enough to handle the MPLS encapsulation and the 1500-byte frames, right? Better safe than sorry!

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Joseph

1 months ago

User 4: Definitely, it's always good to be prepared for any potential issues.

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Zoila

1 months ago

User 3: I agree, better to have a little extra room just in case.

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Cecil

1 months ago

User 2: Agreed, it's better to have a buffer in case of any unexpected overhead.

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Delpha

1 months ago

User 2: Yeah, that sounds like a safe bet.

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Joseph

2 months ago

User 1: I think C) 1536 is the right choice.

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Alaine

2 months ago

User 1: I think C) 1536 is the right choice too. It's always good to have a little extra room.

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Shalon

2 months ago

I agree with Earleen, 1522 makes more sense for the network ports with MPLS.

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Gearldine

2 months ago

I think the answer is B) 1522. The MPLS header adds 4 bytes to the Ethernet frame, and the customer wants to support frames up to 1500 bytes, so the minimum MTU needs to be 1522 bytes.

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Earleen

2 months ago

I disagree, I believe it should be 1522 because of the MPLS encapsulation.

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Marg

2 months ago

I think the minimum MTU setting should be 1536.

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