Nokia 4A0-115 Exam - Topic 6 Question 33 Discussion

Actual exam question for Nokia's 4A0-115 exam

Question #: 33
Topic #: 6

In the exhibit, VPWS 4 enables communications between CEI and CE2. Which of the following statements regarding the operation of VPWS 4 is FALSE?

APEI advertises an auto-discovery per EVPN instance (A-D per EVI) route to PE3 as soon as the SAP becomes operationally

BPE3 advertises an IMET route to PEI as soon as VPWS 4 is administratively enabled.

CPEI and PE3 exchange their service labels using A-D per EVI routes.

DPE3 and PE4 exchange their service labels over an established targeted LDP session.

Show Suggested Answer

Suggested Answer: D

EVPN-MPLS provides services over an MPLS network, not a simple IP network.The customer data is encapsulated with an MPLS label that identifies the service and then tunneled between the PE routers using MPLS LSPs1.

Verified Reference:Ethernet Virtual Private Networks (EVPNs)

by Gearldine at Dec 11, 2024, 06:40 AM

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Madelyn

5 months ago

I thought PE3 and PE4 used a different method for that.

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Krystal

5 months ago

C is spot on, they do exchange service labels that way.

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Jade

5 months ago

Wait, are we sure about D? That seems off.

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Carolann

5 months ago

Totally agree, B is definitely correct too.

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Louann

6 months ago

A is true, PEI does advertise as soon as the SAP is operational.

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Macy

6 months ago

I’m confused about C. I thought service labels were exchanged through different methods, but I can’t recall the specifics.

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Genevive

6 months ago

I’m leaning towards D being false because I thought targeted LDP sessions were only for specific types of exchanges.

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Sage

6 months ago

I feel like I’ve seen a similar question before, and it was about how PE routers advertise routes. Maybe B is the one that’s false?

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Kati

6 months ago

I think A might be the false statement, but I'm not entirely sure. I remember something about auto-discovery being tied to operational status.

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Rodrigo

6 months ago

I'm not entirely sure about the details of VPWS 4 and how it interacts with EVPN. I'll need to think through the options carefully and try to eliminate the ones that don't seem plausible.

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Shenika

6 months ago

This looks straightforward. I'm familiar with VPWS and EVPN, so I should be able to spot the incorrect statement quickly and select the right answer.

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Caprice

6 months ago

Okay, I think I've got this. The key is to identify the false statement about the operation of VPWS 4. I'll carefully evaluate each option and select the one that doesn't match the expected behavior.

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Alaine

6 months ago

Hmm, I'm a bit confused by the terminology in this question. I'll need to review my notes on EVPN and targeted LDP sessions to make sure I understand the right approach.

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Laine

7 months ago

This question seems to be testing my understanding of VPWS and EVPN concepts. I'll need to carefully read through the options and think about the correct operation of VPWS 4.

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Jesusa

12 months ago

I'm a bit stumped on this one. Time to dust off my VPWS knowledge and give it another read-through.

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Hollis

12 months ago

Haha, the question mentions 'CEI' instead of 'PE1'. Looks like someone needs to proofread their exams more carefully!

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Tamie

10 months ago

C) PEI and PE3 exchange their service labels using A-D per EVI routes.

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Shonda

11 months ago

B) PE3 advertises an IMET route to PEI as soon as VPWS 4 is administratively enabled.

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Ludivina

11 months ago

A) PEI advertises an auto-discovery per EVPN instance (A-D per EVI) route to PE3 as soon as the SAP becomes operationally

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Beth

12 months ago

I think C is false. PE1 and PE3 don't exchange service labels using A-D per EVI routes. That just doesn't make sense to me.

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Benedict

10 months ago

D) PE3 and PE4 exchange their service labels over an established targeted LDP session.

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Coleen

11 months ago

B) PE3 advertises an IMET route to PEI as soon as VPWS 4 is administratively enabled.

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Lenita

11 months ago

A) PEI advertises an auto-discovery per EVPN instance (A-D per EVI) route to PE3 as soon as the SAP becomes operationally

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Kristeen

12 months ago

Hmm, this is tricky. I'm gonna go with D. The service labels are exchanged over a targeted LDP session between PE3 and PE4, not using A-D per EVI routes.

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