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Cisco 642-785 Exam Syllabus Topics:

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

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

2. A customer reports drops for traffic in the BIZ-CRITICAL class. As part of the verification process you identify that there is a high number of random drops. Which of these can help address this problem?

A) Decrease the WRED drop probability denominator for the class.
B) Increase the WRED min threshold value for the traffic class.
C) Decrease the queue limit for the traffic class.
D) Enable fair queuing for the BIZ-CRITICAL class.

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

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

4. Refer to the exhibit.

Which two statements are correct? (Choose two.)

A) Within the cust2-classes policy, the gold class is guaranteed 30 percent of the S3/2 interface bandwidth. Silver is guaranteed 15 percent of the S3/2 interface bandwidth. Bronze is guaranteed 10 percent of the S3/2 interface bandwidth.
B) This example is a hierarchical MQC example, and the cust-policy is the child policy.
C) The policy map cust-policy specifies an average traffic shaping rate of 384 kb/s for the cust1 class and assigns the service policy cust1-classes to the cust1 class.
D) This example queues the traffic into different CBWFQ classes before the aggregate traffic is shaped.
E) The traffic class cust2 is ensured a bandwidth of 51.2 kb/s.
F) Within the cust1-classes policy, the gold class is guaranteed 50 percent of the bandwidth. Silver is guaranteed 20 percent of the bandwidth, and bronze is guaranteed 15 percent of the bandwidth.

5. Which two tools can be used to monitor and report on if a QoS queue is working on a network device? (Choose two.)

A) CiscoWorks IPM
B) Splunk
C) Remedy
D) NetCool
E) IP SLA
F) InfoVista

Solutions: