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Cisco 642-785 Exam Syllabus Topics:

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

Question 1

Refer to the exhibit.

Which statement is correct?

A. Packets marked with IP Precedence 5 that exceeds the committed rate will be marked with MPLS EXP 5.
B. This policy will police traffic at the ingress and egress directions.
C. This is a dual-rate policing example.
D. Packets marked with IP Precedence 5 that conforms to the committed rate will be marked with MPLS EXP 5 then transmitted.

Question 2

Which Cisco IOS command will show a summary of probes?

A. show ip sla responder
B. show ip sla configuration
C. show ip sla statistics
D. show ip sla monitors

Question 3

Refer to the exhibit.

A customer reports that data between their sites across your network is very slow and that
voice and video quality are unacceptable. Packet traces of data coming in from and going out to the customer confirm that many packets are being dropped in your network, and many of those that are not dropped are being remarked to CS1. Class maps and a policy map configured as shown are applied inbound to the Fast Ethernet interfaces that connect the customer. What could be the problem?

A. The match criteria is DSCP and the customer packets are being sent marked using IP precedence.
B. All traffic is matching the class class-default, because all other classes are match-all with multiple match criteria.
C. The customer data is being rate limited, but is not being queued by class, which is causing tail drops and packet remarking.
D. The CIR and PIR values appear to have been configured using kbps when the entries are bps.

Question 4

Refer to the exhibit.

A customer's policy profile was updated to increase the minimum bandwidth to 256 kb/s for mission critical data, but reports indicate that the policy now has an error. What change should be made to the policy to correct this error?

A. Increase the maximum queue size to 128 to compensate for the mission critical data.
B. Set the shape rate to a CIR that is higher than 256 kb/s.
C. Use the shape peak command instead of the shape average command.
D. The bandwidth statement should read 256000.
E. The priority command should have been used, not the bandwidth command.

Question 5

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. on output interfaces from the service provider network leading to the customer LAN
C. in the service provider core
D. on output interfaces from the customer LAN leading into the service provider network

Solutions: