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Nokia 4A0-115 Exam - Topic 9 Question 15 Discussion

In the exhibit,MACI moves from PEI to PE2. Which of the following actions related to this MAC address mobility is performed?
C) PE2 advertises a MAC/IP route for MACI with a sequence number higher than that received from PEI.
A) CEI generates an update message to PEI withdrawing its MAC.
B) PEI generates an update message to remote PES identifying the new location of CEI.
D) PE3 waits to receive a data packet from CEI to update its FDB entry for MACI.

Nokia 4A0-115 Exam - 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?

Show Suggested Answer Hide Answer
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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Paulina
6 months ago
No way, CEI should be the one sending the update!
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Art
6 months ago
Wait, does PE3 really just wait for a data packet? That seems odd.
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Gretchen
7 months ago
I think it's actually PE2 that advertises the MAC route.
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Johanna
7 months ago
Totally agree with that!
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Fletcher
7 months ago
PEI generates an update message to remote PES.
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Luisa
7 months ago
I'm a bit confused about option D. I thought the FDB update would happen automatically, but maybe it does wait for a data packet?
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Theresia
8 months ago
I feel like option C might be the correct answer since it mentions advertising a route, which seems important for MAC mobility.
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Lyla
8 months ago
I remember practicing a similar question where PEI had to notify other devices about a MAC address change. Could it be option B?
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Dorinda
8 months ago
I think option A sounds familiar, but I'm not entirely sure if it's the right action for MAC address mobility.
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Broderick
8 months ago
I think I've got a good handle on this. The key is understanding how the network updates the location of the MAC address when the device moves. I'll apply my knowledge of MAC mobility to select the right answer.
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Mose
8 months ago
This looks like a tricky one. I'm a bit unsure about the specifics of how MAC address mobility is handled in this scenario. I'll need to think it through and try to eliminate the incorrect options.
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Stephaine
8 months ago
Okay, let's see. MACI is moving from PEI to PE2, so I need to figure out which action is performed related to that MAC address mobility. I'll read through the choices carefully.
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Sheldon
8 months ago
Hmm, this question seems to be testing my understanding of MAC address mobility. I'll need to carefully consider the options and think through the process step-by-step.
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Joseph
8 months ago
This seems like a straightforward question about the benefits of frequent releases. I think the key is to focus on the "most likely" benefit, so I'll need to carefully consider each option.
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Melynda
8 months ago
The question is asking about VLAN planning principles, so I'll make sure to hit the main points like number of VLANs, customer segmentation, and business requirements.
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Sina
8 months ago
Hmm, I'm a little unsure about this one. I know there are a few different ways to composite layers, so I'll have to think it through carefully. Maybe I should review my notes on blending modes and layer effects.
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Jillian
2 years 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
2 years 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
2 years 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
2 years 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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