Cisco 642-887 Online Practice Questions and Exam Preparation

Cisco 642-887 Online Questions & Answers

• Question 181:

  An engineer is having a problem getting an operational 10 Gigabit link on a Cisco ASR 9000 series router. The service provider instructs the engineer to use an LR optic. The engineer must access the router remotely. Which command should the engineer issue to determine that the correct optic has been installed?

  A. show controllers
  B. show module optics
  C. show ip interface
  D. show optics
  A. show controllers

• Question 182:

  Which three statements are correct regarding a Cisco MPLS TE? (Choose three.)

  A. A Cisco MPLS TE tunnel maps onto an LSP path.
  B. Tunnels are bidrectional by default.
  C. Packets that are mapped into a Cisco MPLS TE tunnel will have two labels, with the top label indicating what the tail-end router should do with the packet.
  D. A tunnel that is created with a priority of 0 can pre-empt an existing tunnel with a priority of 7.
  E. CBR takes into account link resource and traffic tunnel attributes.
  F. RSVP is used between customer routers.
  A. A Cisco MPLS TE tunnel maps onto an LSP path.
  D. A tunnel that is created with a priority of 0 can pre-empt an existing tunnel with a priority of 7.
  E. CBR takes into account link resource and traffic tunnel attributes.

• Question 183:

  Only based on the Cisco IOS XR policy-map configuration exhibit,

  

  which statement is correct?

  A. All DSCP AF41 marked packets will be dropped when the average queue length reaches 12,000 packets.
  B. DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets.
  C. DSCP AF11 and AF41 marked packets are guaranteed a minimum bandwidth of 1 Mb/s.
  D. DSCP AF11 and AF41 marked packets are guaranteed a maximum bandwidth of 1 Mb/s.
  B. DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets.

• Question 184:

  

  Refer to the exhibit. XR2 needs to have LDP configured with PE1. Which configuration achieves this goal?

  A. interface giga 0/0 Mpls ip exit commit
  B. router ospf 1 mpls ldp auto config area 0 exit commit
  C. router ospf 1 area 0 mpls ldp auto config exit commit
  D. interface giga 0/1 mpls ldp exit commit
  C. router ospf 1 area 0 mpls ldp auto config exit commit