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

Show Suggested Answer

Suggested Answer: B

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

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Wilbert

8 days 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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Shalon

14 days ago

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

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Gearldine

14 days 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

17 days ago

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

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Marg

19 days ago

I think the minimum MTU setting should be 1536.

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