642-785 試験問題を無料オンラインアクセス

Refer to the exhibit. Voice quality is poor on calls placed between the two sites. What change would you

recommend to solve this problem?

• A.Change the voice class map to match DSCP EF or CS5.
• B.Lower the total bandwidth allocated for the video, critical, and class-default queues, because they are starving the voice queue.
• C.Increase the bandwidth of the voice priority queue.
• D.Set up WRED to help avoid link congestion.

Refer to the exhibit.

Which two statements are correct? (Choose two.)

• A.No traffic can be matched to the REALTIME traffic class.
• B.No traffic can be matched to the BULK-DATA traffic class.
• C.No traffic can be matched to the VoIP traffic class.
• D.The BULK-DATA traffic class is missing the match-any option in the class-map command.
• E.AF11 or AF12 or AF13 marked packets will be matched to the BULK-DATA traffic class.

Which tool is best suited to provide incident management or trouble ticketing?

• A.Tivoli
• B.Intelliden
• C.Voyence
• D.CiscoWorks
• E.Remedy

To classify and prioritize traffic according to importance, which three statements are correct? (Choose three.)

• A.Video should be placed in the same class as voice.
• B.Critical applications should be given sufficient bandwidth to meet their requirements.
• C.Each class should be guaranteed at least some bandwidth.
• D.Voice traffic should be given top priority.
• E.Email should be placed in a best-effort class.

Refer to the exhibit.

A provider uses the recommended mappings for DSCP to MPLS EXP. Several sites connected to the same PE router report that critical data has been experiencing a high number of drops. The customer marks its CRITICAL data as AF31. What appears to be the problem?

• A.If the data receiving drops is high priority, it should be marked with MPLS EXP value 7.
• B.The classification for CRITICAL-DATA should contain a match-all, not a match-any.
• C.The provider is using the recommended mappings for DSCP to MPLS EXP, so the CLASS-MAP for the CRITICAL-DATA should contain EXP value of 4.
• D.The allocated bandwidth for CRITICAL-DATA should be increased to provide sufficient bandwidth to support the application.
• E.The recommended mapping for AF31 is to MPLS EXP 5, which is classified in the REALTIME class, not the CRITICAL DATA class.