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Exam 4A0-105 topic 2 question 46 discussion

Actual exam question from Nokia's 4A0-105
Question #: 46
Topic #: 2
[All 4A0-105 Questions]

What is the MTU impact on the SDP path-mtu if fast reroute facilities-mode is implemented on the LSP?

  • A. There will be no impact on the path-mtu.
  • B. The path-mtu will decrease by4 bytes.
  • C. The path-mtu will increase by 4 bytes.
  • D. The path-mtu will decrease by 8 bytes.
  • E. The path-mtu will increase by 8 bytes.
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Suggested Answer: B 🗳️
by Ranx01 at May 5, 2025, 10:15 a.m.

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Ranx01
1 week, 2 days ago
Selected Answer: C
Correct answer is "C. The path-mtu will increase by 4 bytes" - Facility mode adds an additional label to the MPLS label stack, because of the additional label, MTU increases by 4 bytes.
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