Cisco 642-785

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

1. Refer to the exhibit.

A service provider moved from a three-class service provider QoS model to a four-class service provider QoS model. A new class of service called CRITICAL-B was created to support traffic with a DSCP marking of AF31. A customer reports that the traffic in the CRITICAL-B class is having problems. What step should the service provider take to correct this issue?

A) The max-reserved-bandwidth command must be used to allocate more bandwidth than allowed by default.
B) The policy map should be updated to move the BULK class to the bottom of the policy.
C) The CRITICAL-A class should change from match-all to match-any.
D) The class map for CRITICAL-B should have a DSCP value of 28.

2. When troubleshooting a QoS problem, which two key statistics should you look for? (Choose two.)

A) interface utilization
B) queue depth
C) queue drops
D) queue priority
E) queue utilization

3. Which four factors can be used for packet classification in a QoS-aware network device? (Choose four.)

A) source address
B) DSCP
C) IP precedence
D) destination address
E) TTL
F) MQC

4. Which two Cisco IOS commands can be used to monitor QoS on a device? (Choose two.)

A) show qos-interface
B) show qos-maps
C) show service-policy
D) show class-map
E) show qos-dbl
F) show policy-map

5. Which Cisco IOS command lists all traffic classifications?

A) show service-policy
B) show class-map
C) show policy-map
D) show qos

Solutions: