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Nokia Exam 4A0-115 Topic 9 Question 15 Discussion

Actual exam question for Nokia's 4A0-115 exam
Question #: 15
Topic #: 9
[All 4A0-115 Questions]

In the exhibit,

MACI moves from PEI to PE2. Which of the following actions related to this MAC address mobility is performed?

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Suggested Answer: C

PE2 advertises a MAC/IP route for MAC1 with a sequence number higher than that received from PE1. This indicates that MAC1 has moved from PE1 to PE2 and triggers a MAC withdrawal message from PE1 to remote PEs.CE1 does not generate an update message to PE1 withdrawing its MAC, nor does PE1 generate an update message to remote PEs identifying the new location of CE11.

Verified Reference:Ethernet Virtual Private Networks (EVPNs)


by Jacqueline at Mar 07, 2024, 10:59 PM

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Jillian
5 months ago
I agree with Avery. Option C makes more sense to me as PE2 needs to advertise the MAC/IP route for MACI with a higher sequence number.
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Velda
5 months ago
I'm not sure who is right here. This question is tricky. Can someone explain their rationale for their answer?
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Avery
5 months ago
I disagree with you Sherron. I believe the correct answer is C) PE2 advertises a MAC/IP route for MACI with a sequence number higher than that received from PEI. This is necessary for the smooth mobility of the MAC address.
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Sherron
6 months ago
I think the answer is B) PEI generates an update message to remote PES identifying the new location of CEI. It makes sense because PEI needs to inform remote PES about the new location.
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