Pass Your Exam On First Try Real Cisco 642-889 Exam Braindumps (21-30)

Which two statements about implementing a separate MPLS VPN to provide customers Internet access are correct? (Choose two.)

A.    The Internet gateway router will act as a CE router.
B.    Customers will use separate interfaces for VPN and Internet access.
C.    Customers are assigned to the Internet VPN.
D.    Internet routes will be leaked from the PE global routing table to the customer VRF.

Answer: AC

Which CE-to-PE routing protocol implements the down bit as a loop prevention mechanism?

A.    RIPv2
C.    IS-IS
D.    OSPF
E.    BGP

Answer: D

When you are using OSPF as the CE-to-PE routing protocol in MPLS VPN implementations, an OSPF route from customerA site 1 in Area 0 will appear as which kind of OSPF route in customerA site 2, also in Area 0?

A.    intra-area
B.    interarea
C.    E1
D.    E2

Answer: B

When implementing nonhierarchical VPLS with eight PE routers, how many total PWs will be required between the PE routers?

A.    8
B.    16
C.    28
D.    32
E.    64

Answer: C

VPWS/EoMPLS offers which type of Ethernet services as defined by the MEF?

A.    E-Tree
B.    E-LAN
C.    E-Line
D.    E-Interworking

Answer: C

The Cisco IOS XR address-family ipv4 labeled-unicast and the Cisco IOS/IOS XE neighbor send-label commands are used in which MPLS implementation?

A.    Cisco MPLS TE
B.    CSC using MP-BGP for label exchange
C.    back-to-back VRF
D.    AToM
E.    VPLS

Answer: B

When verifying Layer 3 MPLS VPN operations, which Cisco IOS XR show command is best used to verify that the PE router is receiving the routes from the CE router?

A.    show route
B.    show route vrf vrf-name
C.    show bgp vpnv4 vrf vrf-name
D.    show bgp vpnv4 unicast ip-prefix

Answer: B

When implementing Layer 3 MPLS VPNs on Cisco IOS/IOS XE PE routers, which PE-to-CE routing protocol requires a separate routing process to be created for each VRF?

B.    RIPv2
C.    OSPF
D.    BGP

Answer: C

In Layer 3 MPLS VPN implementations, if a customer is using the same AS number at both customer sites and the PE-to-CE routing protocol is BGP, what must be enabled on the PE router?

A.    BGP AS override
B.    BGP allowas-in
C.    BGP SOO extended community
D.    BGP AS path prepending

Answer: A

Which three functions are performed by the PE router in an MPLS Layer 3 VPN? (Choose three.)

A.    exchanges routing updates with the CE router
B.    translates the CE routing information into VPNv4 routes
C.    exchanges VPNv4 routes with other PE routers over MP-BGP
D.    imports and exports RTs that are received from the P routers
E.    exchanges RDs with the P routers
F.    exchanges VPN labels with the CE routers

Answer: ABC

Pass Your Exam On First Try Real Cisco 642-889 Exam Braindumps

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