642-887 exam

Which QoS mechanism is used for congestion avoidance?A . LLQB . CBWFQC . WREDD . LFIE . traffic policingView AnswerAnswer: C

On the Cisco ASR9K router, when using the bandwidth command to specify the minimum guaranteed bandwidth to be allocated for a specific class of traffic, what will be used as the queuing algorithm?A . custom queuingB . CBWFQC . WFQD . FIFOE . priority queuingView AnswerAnswer: B

Scenario: After reviewing present router configuration CE7 .which two statements are correct regarding behavior of the "IIq" policy-map? (Choose 2)A . Traffic matched by the "cisco1" class-map will be assigned to the priority queue.B . The "IIq" QoS policy is applied to the gi0/0 interface in the output directionC ....

Referring to the Cisco IOS XR show command output exhibit, What are three possible reasons that the GigabitEthernet0/1/0/10 LDP IGP sync status is not ready? (Choose three.)A . GigabitEthernet0/1/0/10 is not configured to run LDC . Graceful restart is not configured on the peer.D . The LDP neighbor on GigabitEthernet0/1/0/10...

Which two of the following statements are correct regarding LSPs? (Choose two.)A . An LSP is created for every routing protocol entry.B . Each LSP is bidirectional, that is, packets traveling in the opposite direction use the same LSD . An IGP is used to populate routing tables in all...

What are the four fields inside the MPLS shim header? (Choose four.)A . EXPB . TTLC . VersionD . SE . LengthF . LabelG . TypeH . FCSView AnswerAnswer: A,B,D,F

Which Cisco IOS XR command should be used in order to enable LDP-IGP synchronization for the ISIS IGP protocol?A . RP/0/RSP0/CPU0:R1(config-isis-if-af)#mpls ldp syncB . RP/0/RSP0/CPU0:R1(config-isis)#mpls ldp syncC . RP/0/RSP0/CPU0:R1(config-ldp)#isis ldp syncD . LDP-IGP synchronization is not supported for the ISIS IGP protocol on Cisco IOS XR platformsView AnswerAnswer: A

Scenario: After reviewing present router configuration CE7 .which two statements are correct regarding behavior of the "IIq" policy-map? (Choose 2)A . Traffic matched by the "cisco1" class-map will be assigned to the priority queue.B . The "IIq" QoS policy is applied to the gi0/0 interface in the output directionC ....

LDP session protection uses which one to maintain the LDP session between LDP neighbors?A . LDP NSFB . LDP NSRC . backup-targeted LDP hellosD . BFDE . LDP-IGP synchronizationView AnswerAnswer: C

Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?A . LDP session protectionB . LDP-IGP synchronizationC . BFDD . IGP session protectionView AnswerAnswer: B