Passed Cisco 642-889 Exam with Pass4sure and Lead2pass PDF & VCE (31-40)

April 4, 2014

QUESTION 31
Which BGP extended community is used to control the distribution of VPN routing information and to identify routers that may receive a set of routes that carry the community?

A.    SOO
B.    RT
C.    opaque
D.    route origin
E.    RD

Answer: B

QUESTION 32
In which configuration mode is a route distinguisher configured in a Cisco IOS XR router?

A.    config-vrf
B.    config-vrf-af
C.    config-bgp
D.    config-bgp-af
E.    config-bgp-vrf

Answer: E

QUESTION 33
Refer to the exhibit. Given the output shown, which two statements are true? (Choose two.)

A.    The configured remote AS for neighbor 10.1.1.1 is 1234.
B.    Both prefixes that are referenced by network commands will be visible with the show bgp command
from the information that is shown in the output.
C.    The neighbor 10.1.1.1 cannot learn any routes from this router.
D.    The router cannot learn any routes for neighbor 10.1.1.1.
E.    Routes from the Internet VRF that are injected into BGP through redistribution will be advertised to
neighbor 10.1.1.1.

Answer: AC

QUESTION 34
Which Layer 2 VPN technology is implemented over an IP core network without the need for MPLS?

image

A.    VPLS
B.    VPWS
C.    AToM
D.    L2TPv3

Answer: D

QUESTION 35
Which two Layer 2 VPN methods support interworking between customer sites with different Layer 2 encapsulation at each end (for example, Frame Relay to Ethernet interworking)? (Choose two.)

A.    AToM
B.    VPLS
C.    GET VPN
D.    L2TPv3

Answer: AD

QUESTION 36
What are the two AToM interworking modes? (Choose two.)

A.    bridged (interworking ethernet)
B.    routed (interworking ip)
C.    label-switched (interworking mpls)
D.    transparent (interworking transparent)

Answer: AB

QUESTION 37
When implementing EoMPLS on Cisco IOS XR routers, which command under the l2vpn configuration mode is used to define the pseudowire?

A.    pbb
B.    xconnect
C.    connect
D.    bridge
E.    bridge-domain

Answer: B

QUESTION 38
When configuring an EoMPLS PW on a Cisco IOS XR router, what are the two supported transport modes? (Choose two.)

A.    ethernet (Ethernet port mode)
B.    ip (routed mode)
C.    vlan (VLAN-tagged mode)
D.    transparent (bridged mode)

Answer: AC

QUESTION 39
When implementing EoMPLS PWs, which configuration is optional?

A.    matching PW ID on both ends
B.    Xconnect
C.    Cisco Express Forwarding
D.    control word

Answer: D

QUESTION 40
Which method is used to provide inter-AS AToM services?

A.    back-to-back VRF
B.    targeted LDP
C.    pseudowire stitching
D.    AToM interworking
E.    Cisco MPLS TE tunnels
F.    autodiscovery

Answer: C

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