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

1. What are two benefits of the DiffServ model? (Choose two.)

A) It provides absolute guarantees of service quality.
B) Its class-based mechanisms are simple and scale well.
C) It does not require setting up an end-to-end signaling mechanism.
D) Service quality can be tailored to the needs of many different types of traffic.

2. Refer to the exhibit.

Some customers report that at peak times during the day their average throughput seems to be less than what they expect. While troubleshooting, you notice that data flows sometimes seem to be synchronized with a tendency to increase then drop off in a repeating manner. Which action would help to alleviate this situation?

A) Implement WRED to help prevent tail drops during periods of congestion.
B) Change your QoS model from DiffServ to IntServ for better QoS scalability.
C) Implement traffic shaping to smooth out the peaks and troughs.
D) Decrease the size of output queues in the network to allow the scheduler to allocate link bandwidth fairly.

3. Refer to the exhibit.

Traffic in CLASS-B is not getting a minimum bandwidth of 192 kb/s in this policy map. What can be done to correct this?

A) The shape peak command should be used instead of the shape average command.
B) Decrease the maximum queue size.
C) Set the shape rate to a CIR higher than 192 kb/s.
D) No changes are needed, the site is already correct.

4. A customer reports that during peak hours, FTP performance is unacceptable. Currently, the service provider maps the customer FTP traffic into the class-default traffic class and FTP traffic is marked with MPLS EXP1. The class-default class traffic is configured with MPLS EXP based WRED and also with the bandwidth command. What could be causing the FTP performance issues with the customer?

A) FTP packets are being more randomly dropped that the other TCP traffic within the class-default traffic class, because the WRED thresholds for MPLS EXP 3 marked packets were configured to improper values.
B) The service provider is using LLQ on all the core links, but the FTP traffic is not is assigned to the priority queue.
C) The FTP-type bulk traffic should be mapped to MPLS EXP 5 instead of MPLS EXP 1. The improper marking of FTP packets is causing CBWFQ to assign lower priority for FTP packets within the class-default traffic class.
D) The bandwidth command is causing the FTP issues. It is generally not recommended to use CBWFQ for the class-default traffic class.

5. Which three NetFlow versions are supported by Cisco NetFlow Analyzer? (Choose three.)

A) 7
B) 5
C) 9
D) 6
E) 1
F) 8

Solutions: