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Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:

1. What are the benefits of using differentiated services in the service provider backbone? (Choose two.)

A) simple, easy to design, deploy, and operate
B) less bandwidth required to achieve the same SLA
C) overprovision by two times the maximum aggregate
D) more aggregate traffic supported

2. Refer to the exhibit.

Which queueing method has been configured?

A) CBWFQ
B) LLQ
C) MDRR
D) priority queueing
E) WFQ

3. A MPLS VPN customer reports poor VoIP call quality across the MPLS VPN. What could be the problem?

A) All the core links in the service provider network are using LLQ.
B) The service provider has assigned more than 33% of the interface bandwidth to the priority class.
C) The service provider is using RTP header compression on the high-speed core links.
D) The total end-to-end delay measured is constantly over 350 msec.
E) The service provider is using the Short Pipe mode rather than the Uniform mode.

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

5. Which three match statements are valid in Cisco IOS XR Software? (Choose three.)

A) match field
B) match port-type
C) match flow
D) match mpls experimental topmost
E) match qos-group
F) match vpls

Solutions: