Free Cisco 640-878 Exam Dumps Questions & Answers

Within an MPLS domain, which table is used by the ingress edge LSR to make forwarding decisions when an unlabeled IP packet is received?

• A.  FIB
• B.  VRF
• C.  MP-BGP
• D.  LIB
• E.  LFIB

What command will install the image needed on the Cisco IOS-XR if the SSH configuration options are unavailable?

• A.  install activate disk0:c12k-k9sec.pie-4.1.2
• B.  install activate disk0:c12k-diags.pie-4.1.2
• C.  install ssh activate disk0:c12k-k9sec.pie-4.1.2
• D.  install commit disk0:c12k-diags.pie-4.1.2

Refer to the partial Cisco IOS router configuration exhibit.

Which statement is true?

• A.  To provide inter-VLAN routing, the router is missing the vlan 1, vlan 2, and vlan 3 global configuration commands.
• B.  To provide inter-VLAN routing, the Fa0/0.1, Fa0/0.2 and Fa0/0.3 subinterface configuration is missing the encapsulation dot1Q vlan-id subinterface configuration command.
• C.  To support the subinterface configuration, the Fa0/0 main interface configuration is missing the encapsulation dot1Q command.
• D.  The Fa0/0 interface/subinterfaces are configured correctly to operate as a trunk port to provide inter-VLAN routing for three VLANs (VLANs 1, 2, and 3).

ISPs use which protocol to establish peering sessions in an Internet exchange point environment?

• A.  BGP
• B.  IS-IS
• C.  LDP
• D.  OSPF

What are two legitimate IPv4 to IPv6 migration technologies? (Choose two.)

• A.  IPv6 phasing
• B.  In IPv4 / Out IPv6
• C.  IPv6 over IPv4 tunneling
• D.  Dual stack backbones
• E.  Lift and shift