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Cisco 642-785 Exam Syllabus Topics:

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

1. When the customer LAN is managed by the service provider and the network is oversubscribed, what is the best location for use of congestion avoidance mechanisms?

A) in interfaces in the service provider network incoming from the customer LAN
B) in the service provider core
C) on output interfaces from the customer LAN leading into the service provider network
D) on output interfaces from the service provider network leading to the customer LAN

2. Which statement about the rates and statistics (such as match, transmit, drop, and police) shown in the show policy-map interface output is true?

A) The matched statistics of the packet can be cleared only when the router reboots.
B) The matched statistics of the packet are displayed in real time.
C) The rates are displayed in real time, which matches the actual traffic rate.
D) The rates are computed as a moving average of instantaneous rates.
E) The traffic policing statistics are displayed in real time.

3. What are three fundamental QoS mechanisms? (Choose three.)

A) congestion handling
B) congestion avoidance
C) policing
D) undersubscription
E) marking

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

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

5. Refer to the exhibit.

Which two statements about the SP-REALTIME traffic class are true? (Choose two.)

A) The police configuration command is missing the violate-action option.
B) Traffic is policed to 35 percent of the interface bandwidth.
C) Traffic conforming to the police rate will be transmitted and all the markings on the packets will be cleared.
D) The priority configuration command is missing the maximum guaranteed bandwidth rate.
E) Traffic is queued using LLQ.

Solutions: