Free Cisco 642-887 Exam Dumps Questions & Answers

A network engineer sees that no LDP are allocated to prefixes in the LFIB. IP connectivity is between the LDP source interface, and MPLS is properly configured on the appropriate interface. What Is the issue?

• A.  RSVP is not enabled.
• B.  IS-IS is not enabled.
• C.  Cisco Express Forwarding is not enabled.
• D.  TDP is not enabled.

Which configuration set enables outbound label filtering so that only peer 192.168.10.1 receives label advertisements in an MPLS environment?
A)

B)

C)

D)

• A.  Option C
• B.  Option D
• C.  Option B
• D.  Option A

Which feature should you configure to enable routers to maintain MPLS label information despite link flaps on an interface?

• A.  NSR
• B.  Targeted Adjacency
• C.  IGP Synchronization
• D.  MPLS LDP Session Protection

Which queuing mechanism should an engineer implement on delay sensitive categories of traffic?

• A.  priority
• B.  weighted fair
• C.  weighted round-robin
• D.  low-latency

A service provider experiences routing issues in a customer MPLS network. The customer has two sites that are connected over its core. Which feature can be used for troubleshooting?

• A.  LSP Ping, to confirm that the label-switched path is used for transport
• B.  redistribution between the BGP IPv4 and VPNv4 address families, to use labels to forward the customer packets
• C.  traceroute, to verify the label-switched path that is used for point-to-multipoint
• D.  disabling of Cisco Express Forwarding, to enable the use of LSP Ping and LSP Traceroute to verify the IP routing path