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

1. Where would you apply WRED to avoid congestion and poor QoS from oversubscription of the network?

A) wherever there is a potential bottleneck and traffic is delay-intolerant
B) wherever there is a potential bottleneck and most traffic is TCP
C) wherever there is a potential bottleneck
D) wherever there is a potential bottleneck and most traffic is UDP
E) wherever there is a potential bottleneck and most traffic is voice

2. Refer to the exhibit.

Which statement is correct?

A) The FastEthernet0/0 interface is using CBWFQ egress queueing.
B) A total of 133836 packets have been transmitted out of the FastEthernet0/0 interface.
C) This policy map is applied to the FastEthernet0/0 interface in the input direction.
D) Packets marked with both DSCP EF and MPLS EXP 5 markings will not be classified into the SP-REALTIME traffic class.
E) No traffic matched the SP-REALTIME class.

3. An MPLS VPN customer with managed CE services recently made some changes to their call manager configurations. Now the customer reports that their VoIP traffic voice quality is very poor. What could be a cause of the problem?

A) The customer changed the codec used for voice compression from G.729 to G.711.
B) The VoIP traffic is being marked as DSCP EF.
C) RTP header compression is used for the VoIP traffic class.
D) The VoIP traffic class is not being policed at the CE router egress.
E) The traffic shaping rate for the VoIP traffic class is too low.

4. Which three issues are important challenges for monitoring service quality in the SP core network? (Choose three.)

A) Multiple flows compete for a limited amount of bandwidth.
B) Packets have to traverse many network devices and links that add up to the overall delay.
C) Traffic flows are continuously high.
D) Relatively few tools are available for collecting service quality data.
E) Packets may have to be dropped when a link is congested.

5. Which three components would you use to define and apply traffic classification? (Choose three.)

A) route map
B) route policy
C) service policy
D) class map
E) policy map

Solutions: