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Cisco Quality of Service (QoS) Sample Questions:

1. Which element is mandatory for QoS policy propagation through BGP operations?

A) CEF
B) QoS pre-classify
C) policy-based routing
D) MQC
E) NBAR
F) MPLS

2. The following commands have been configured under the fa0/1 interface on the 2950 switch:
wrr-queue bandwidth 20 1 80 0
mls qos trust cos
mls qos trust device cisco-phone
Voice traffic from the IP phone that is directly connected to the fa0/1 interface is experiencing excessive delays. What could be the cause of this problem?

A) The default dscp-to-cos map is being used.
B) The trust boundary configuration is not correct.
C) The default cos-to-dscp map is being used.
D) The default wrr-queue cos-map is being used.
E) The wrr-queue bandwidth weightings are not correct.

3. For which service is assured forwarding PHB used?

A) class selector
B) expedited forwarding
C) guaranteed bandwidth
D) best effort

4. SIMULATION - LAB

A) Please click console

5. HOTSPOT

Solutions: