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

1. Which Cisco IOS feature is used to enable the following class map configuration?
class-map match-all test-cm
match protocol gnutella file-transfer "*"

A) Flexible Packets Matching
B) NBAR
C) NetFlow
D) CBWFQ
E) CAR

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

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

3. An MPLS VPN customer reports that the VoIP voice quality is very bad for calls across the
MPLS VPN. What could be the problem?

A) WRED is not configured for the voice traffic class.
B) Traffic shaping is applied to the voice traffic class.
C) The voice traffic class is using the default queue size.
D) The voice packets are marked as DSCP EF.
E) The voice traffic class is using the priority command.

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

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

5. Refer to the exhibit.

Your MPLS network is using RFC 3270 Uniform mode. Your customer reports that when a Microsoft NetMeeting call is placed between the workstations, the user at 172.16.1.2 experiences acceptable audio quality but the user at 172.16.2.2 experiences poor audio quality. What course of action should you take?

A) Have the customer set the correct marking of audio packets at the 172.16.2.2 device.
B) Use a policy map at the ingress to the PE2 router to remark packets from 172.16.2.2.
C) Change your policy to not remark audio packets within your network.
D) Have the customer set the correct marking of audio packets at the 172.16.1.2 device.
E) Use a policy map at the ingress to the PE1 router to remark packets from 172.16.1.2.

Solutions: