Nokia Ethernet Virtual Private Network Services (4A0-115) Free Practice Test

Question 1

Which of the following statements about EVPN Layer-3 services that utilize the interface-ful model is TRUE?

A. VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS.

B. The MAC/IP routing information is used to populate the VPRN routing table at the remote PEs.

C. Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.

D. EVPN MAC/IP routes are used to advertise the IP prefixes of subnets attached to a VPRN.

Correct Answer: C

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Question 2

Based upon the exhibit, how many MAC-VRFs are there?

A. 4

B. 3

C. 1

D. 2

Correct Answer: D

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Question 3

Which of the following best describes the operation of a non-designated forwarder (non-DF) in a single-active Ethernet segment?

A. Blocks Tx unicast, allows Rx unicast, blocks Tx BUM, allows Rx BUM

B. Allows Tx unicast, blocks Rx unicast, allows Tx BUM, blocks Rx BUM

C. Blocks Tx unicast, blocks Rx unicast, blocks Tx BUM, blocks Rx BUM

D. Allows Tx unicast, allows Rx unicast, blocks Tx BUM, allows Rx BUM

Correct Answer: A

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Question 4

Which of the following statements does NOT describe the operation of the Layer-3 EVPN asymmetric forwarding model?

A. The egress PE does not perform any Layer-3 route look up to forward traffic.

B. All VPLS instances must be configured on all PES regardless of whether they have a local host or not.

C. EVPN IP-Prefix routes are used to populate the VPRN VRF tables.

D. The ingress PE performs both Layer-2 and Layer-3 look ups when forwarding traffic between subnets.

Correct Answer: B

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