Discuss Nokia 4A0-115 Exam Topic 1 Question 4

Which of the following statements about the operation of a single-homed EVPN VPWS is TRUE?

AThe same tag ID must be configured for the local attachment circuit (AC) at each PE.

BEach PE advertises a MAC route and an A-D per EVI route when its local AC becomes operationally UP.

CThe advertised A-D per EVI route includes a non-zero tag ID and a non-zero MPLS label.

DEach PE verifies that the received tag ID matches its configured local AC tag ID.

Suggested Answer: C

The advertised A-D per EVI route includes a non-zero tag ID and a zero MPLS label.The tag ID is used to identify the VPWS service, while the MPLS label is not used for single-homed VPWS services1.

Verified Reference:Ethernet Virtual Private Networks (EVPNs)

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13 comments · newest first

Quinn 11 months ago

I disagree with A, I thought tag IDs could differ in some cases.

Hannah 11 months ago

D makes sense, gotta verify the tag ID for sure.

Stacey 11 months ago

Wait, C sounds off. Non-zero tag ID? Really?

Arlette 11 months ago

I think B is correct too, every PE does that when AC is UP.

Yen 12 months ago

A is definitely true, you need the same tag ID.

Willie 12 months ago

I recall that each PE does verify the tag ID against its local configuration, so option D might be the right choice.

Giuseppe 1 year ago

I’m a bit confused about the A-D routes; I thought they always included a zero tag ID in some cases.

Edison 1 year ago

I think option B sounds familiar; I practiced a question where PEs advertised MAC routes when the AC was UP.

Melda 1 year ago

I remember something about tag IDs needing to match for the local AC, but I'm not sure if that's the only requirement.

Pok 1 year ago

Okay, let's think this through step-by-step. The key is to identify the bottlenecks and points of failure in the current system.

Britt 1 year ago

Hmm, this seems like a tricky one. I'll need to carefully review the UiPath Robotic Enterprise Framework documentation to understand the expected behavior in this scenario.

Kiera 1 year ago

Okay, let me break this down. The PVC has a storageClass that's empty, and the size requirements can't be met by any existing PV. That means Kubernetes can't automatically provision a new PV to match the PVC. So the logical solution is that the PVC will remain unbound until a suitable PV becomes available. I'll go with option A.

Ranee 1 year ago

I thought it might be Microcomputer Boot Resistor at first, but that doesn't seem to fit. Master Boot Record definitely rings a bell!

Nokia 4A0-115 Exam - Topic 1 Question 4 Discussion