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Home Cisco® 642-889

Cisco® 642-889 Exam Practice Questions (P. 2)

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Question #6
Which flavor of MPLS Layer 3 VPN has MPLS enabled on PE-CE links?
  1. A
    basic
  2. B
    CSC
  3. C
    inter-AS
  4. D
    AToM E.

Correct Answer:
B

Question #7
Which MP-BGP address family must be configured to use VPLS autodiscovery in a Cisco IOS XR router?
  1. A
    address-family l2vpn vpls-vpws
  2. B
    address-family vpnv4 unicast
  3. C
    address-family ipv4 mdt
  4. D
    address-family ipv4 tunnel
  5. E
    address-family vpls vfi

Correct Answer:
A

Question #8
In MPLS Layer 3 VPN implementations, what is used on the PE router to isolate potential overlapping routing information between different customers?
  1. A
    route targets
  2. B
    VRFs
  3. C
    VC IDs
  4. D
    pseudowire IDs E.

Correct Answer:
B

Question #9
Within the service provider IP/MPLS core network, what must be implemented to enable Layer 3 MPLS VPN services?
  1. A
    IS-IS or OSPF on all the PE and P routers
  2. B
    MP-BGP between the PE routers
  3. C
    RSVP on all the PE and P routers
  4. D
    targeted LDP between the PE routers E.

Correct Answer:
B

Question #10
In MPLS Layer 3 VPN implementations, which mechanism is used to control which routes are imported to a VRF?
  1. A
    RT
  2. B
    RD
  3. C
    VC ID
  4. D
    PW ID E.

Correct Answer:
A

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