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Nokia 4A0-115 Exam Practice Questions (P. 3)

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Question #11
Based upon the exhibit, which of the following statements is FALSE?
  1. A
    PE1 populates this information into the local VPLS FDB.
  2. B
    Neighbors 10.10.10.2 and 10.10.10.3 have proxy-ARP enabled for the VPLS.
  3. C
    Neighbors 10.10.10.2 and 10.10.10.3 have a service that uses a VXLAN network identifier of 10.
  4. D
    PE1 uses VXLAN tunnels to reach neighbors 10.10.10.2 and 10.10.10.3.

Correct Answer:
A

Question #12
Proxy-ARP/ND is operational for a VPLS. Which of the following statements is FALSE?
  1. A
    The PE has proxy-ARP and dynamic-populate enabled for the VPLS.
  2. B
    The proxy-ARP table is populated by snooping IP packets received from remote PEs.
  3. C
    When the PE learns a local host IP address, it adds an entry into its proxy-ARP table.
  4. D
    The PE advertises a MAC/IP route that includes the MAC and IP address of a local host.

Correct Answer:
B

Question #13
Based upon the exhibit, which of the following statements is FALSE?
  1. A
    VPLS 10 must be configured with two BGP instances on PE3 and PE4.
  2. B
    On PE3 and PE4, VPLS 10 must be configured with two different route-distinguisher values: one for VXLAN and another for MPLS.
  3. C
    On PE3 and PE4, VPLS 10 must be configured with two different route-target values: one for VXLAN and another for MPLS.
  4. D
    A BGP export policy is required on PE3 and PE4 to ensure that IMET routes originated with VXLAN encapsulation are not advertised to the peer across the core network.

Correct Answer:
A

Question #14
Which of the following statements about an EVPN with integrated routing and bridging (EVPN-IRB) service is FALSE?
  1. A
    This service requires the use of EVPN-MPLS for data plane.
  2. B
    In this service, the IRB interface acts as a default gateway for hosts in the corresponding subnet.
  3. C
    This service consists of a VPRN and multiple VPLSs.
  4. D
    This service enables the use of EVPN to provide connectivity between hosts in different subnets.

Correct Answer:
A

Question #15
Which of the following statements does NOT describe the operation of the Layer-3 EVPN asymmetric forwarding model?
  1. A
    All VPLS instances must be configured on all PEs regardless of whether they have a local host or not.
  2. B
    EVPN IP-Prefix routes are used to populate the VPRN VRF tables.
  3. C
    The egress PE does not perform any Layer-3 route look up to forward traffic.
  4. 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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