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Cisco Quality of Service (QoS) Sample Questions:

1. DRAG DROP
Drop

2. Mission-critical traffic is not getting a minimum bandwidth of 192 kbps in this policy-map configuration. What should be done to correct the problem?
policy-map test class mission-critical bandwidth 192 shape average 128000 queue-limit 64

A) Change the bandwidth statement to the bandwidth 192000 command.
B) Use the shape peak command instead of the shape average command.
C) Decrease the maximum queue size for the mission-critical traffic class using the queue-limit 40 command.
D) Set the shape rate to a CIR that is higher than 192 kbps.
E) Replace the bandwidth statement with the priority 192 command.
F) Increase the maximum queue size for the mission-critical traffic class using the queue-limit 128 command.

3. QoS policy propagation through BGP (QPPB) supports which two QoS markers? (Choose two.)

A) DSCP
B) MPLS EXP
C) IP precedence
D) COS
E) QoS group

4. Refer to the exhibit. A typical configuration involving an IP phone with an attached PC is shown. According to QoS recommendations, at which demarcation line (shown as dotted lines) would the trust boundary normally exist?

A) D
B) B
C) C
D) A

5. When configuring a Cisco Catalyst switch to accommodate an IP phone with an attached PC, it is desired that the trust boundary be set between the IP phone and the switch. Which two commands on the switch are recommended to set the trust boundary as described? (Choose two.)

A) no mls qos trust dscp
B) mls qos cos 5
C) mls qos trust device cisco-phone
D) switchport priority extend trust
E) mls qos trust cos
F) mls qos trust extend [cos value]

Solutions: