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

1. A provider plans to use IP SLA to help diagnose future performance issues in their PE routers in the network. Which two should be considered by the provider? (Choose two.)

A) IP SLA requires a significant amount of resources to operate properly. Using IP SLA on the PE routers will only aggravate performance-related issues the network already encounters.
B) IP SLA is supported only on Cisco IOS edge routers, because it simulates traffic from the network endpoints.
C) IP SLA should use a mix of source and target points.
D) IP SLA should be implemented on dedicated hardware to properly simulate network endpoints.

2. A customer is experiencing poor quality on voice connections coming from a particular branch office. Data on the service provider network capacity indicates that the devices serving that location are heavily oversubscribed. It will be months before planned expansions can be implemented. Which class-based traffic-shaping technique would be appropriate to consider implementing?

A) shaping to the configured average rate
B) shaping to the peak rate
C) shaping to the committed rate
D) shaping to the observed median rate

3. Which of these correctly describes traffic classification using qos-group?

A) qos-group marking value ranges from 0 to 7.
B) qos-group marking is automatically mapped to MPLS EXP marking.
C) qos-group is local to the router.
D) qos-group is only applicable to an MPLS-enabled router.

4. Refer to the exhibit on a PE router. What could be causing the issue?
Service-policy output: OUTPUT-POLICY Counters last updated 00:00:00 ago
Class-map: REALTIME (match-any) 845206 packets, 348763573 bytes 30 second offered rate 3000000 bps, drop rate 2500000 bps Match: ip dscp cs5 (40) ef (46) Priority: 10% (500 kbps), burst bytes 327265678, b/w exceed drops: 312925450
Class-map: DSCP-OUT-RTVI (match-any) 0 packets, 0 bytes 30 second offered rate 0000 bps, drop rate 0000 bps Match: ip dscp af41 (0) Queueing queue limit 32 packets (queue depth/total drops/no-buffer drops) 0/0/0 (pkts output/bytes output) 0/0
Class-map: class-default (match-any) 0 packets, 0 bytes 5 minute offered rate 0000 bps, drop rate 0000 bps Match: any Queueing queue limit 1024 packets (queue depth/total drops/no-buffer drops) 0/0/0 (pkts output/bytes output) 0/0

A) PE interface was not configured with enough bandwidth.
B) PE needs to upgrade to a higher throughput interface.
C) CE marked all traffic incorrectly to DSCP 0.
D) Traffic rate CE sent is over the SLA limit.
E) CE marked all traffic incorrectly to DSCP 46.

5. Which Cisco IOS IP SLA Probe would you select to identify bottlenecks in the network?

A) FTP Path Echo
B) ICMP Path Jitter
C) ICMP Path Echo
D) ICMP Echo

Solutions: