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Nokia 4A0-115 Exam Practice Questions (P. 2)

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Question #6
Based upon the exhibit, which of the following statements about the forwarding of BUM traffic is FALSE?
  1. A
    PE3 replicates the traffic and sends it to all PEs in its VPLS 1 flooding list.
  2. B
    PE3 adds an ESI label to packets forwarded to PE1 because PE1 is connected to the same Ethernet segment.
  3. C
    PE1 forwards the traffic received from PE3 to CE1, and CE1 discards it based upon the ESI label.
  4. D
    PE2 decapsulates the packets received from PE3 and forwards the frames to CE2.

Correct Answer:
C

Question #7
In the exhibit MAC1 moves from PE1 to PE2. Which of the following actions related to this MAC address mobility is performed?
  1. A
    CE1 generates an update message to PE1 withdrawing its MAC.
  2. B
    PE1 generates an update message to remote PEs identifying the new location of CE1.
  3. C
    PE2 advertises a MAC/IP route for MAC1 with a sequence number higher than that received from PE1.
  4. D
    PE3 waits to receive a data packet from CE1 to update its FDB entry for MAC1.

Correct Answer:
C

Question #8
What are EVPN inclusive multicast Ethernet tag (IMET) routes used for?
  1. A
    To advertise the MAC or MAC/IP addresses of locally-learned hosts
  2. B
    To advertise the redundancy mode of a local Ethernet segment
  3. C
    To discover all PEs participating in the same VPLS service
  4. D
    To discover all PEs attached to the same Ethernet segment

Correct Answer:
C

Question #9
Based on the exhibit below, which of the following statements is FALSE?
  1. A
    When forwarding BUM traffic, the local PE must replicate the traffic and send it as unicast to the advertising neighbor.
  2. B
    The MPLS label 524284 presented indicates the service label value that the neighbor 10.10.10.2 uses to forward BUM traffic to PE1.
  3. C
    When forwarding BUM traffic, the local PE uses an MPLS transport tunnel towards the advertising neighbor.
  4. D
    The IMET route is imported by a local VPLS configured with a route-target value of 65100:10.

Correct Answer:
C

Question #10
Based on the exhibit below, which of the following statements is TRUE?
  1. A
    PE2 advertises this BGP update for a locally-configured VPWS service.
  2. B
    PE1 uses this BGP update to build the flooding list of the associated service.
  3. C
    PE1 uses MPLS label 524284 when sending traffic destined to 00:00:00:02:10:02.
  4. D
    Neighbor 10.10.10.2 is connected to a multi-homed CE.

Correct Answer:
C

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