4A0-115 Premium Exam Questions

Nokia Ethernet Virtual Private Network Services Questions and Answers

Question 5

Examine the exhibit.

Which of the following actions is performed by PEI after it receives a BUM packet from CEI?

PEI does not flood the packet because PEI is acting as non-designated forwarder (non-DF) for VPLS 10.

PEI sends the packet to PE2 but not to PE3 because PE3 is connected to the originating ES.

PEI sends the packet to PE2 and to PE3. An ESI label is included only in the packet sent to PE2.

PEI sends the packet to PE2 and to PE3. An ESI label is included only in the packet sent to PE3.

Question 6

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

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

Question 7

Which of the following statements about the EVPN route types used to support multi-homing is TRUE?

Ethernet segment (ES) routes indicate the redundancy mode of the Ethernet segment.

ES routes provide the ESI label required to support the split-horizon mechanism.

Auto-discovery (A-D) routes are imported by all PES participating in the EVPN service.

A-D per Ethernet segment routes indicate the desired designated forwarder election algorithm.

Question 8

Examine the exhibit.

Which of the following statements about the operation of EVPN VPWS 4 is FALSE?

PEI brings the SAP in VPWS 4 operationally down.

PE3 sets the P flag in its advertised A-D per EVI route to I.

PE2 receives a single A-D per EVI route. The route is originated from PE3.

PE2 receives two A-D per ES routes: one from PEI and another from PE3.