Cisco 642-642 : Quality of Service (QoS)

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Cisco 642-642 Exam Syllabus Topics:

Cisco Quality of Service (QoS) Sample Questions:

Question #1
The show policy-map interface command output is showing too many random drops for the mission-critical traffic class. What can be changed to reduce the random drops?

A. Increase the WRED min-threshold value for the mission-critical traffic class.
B. Enable fair-queue within the mission-critical traffic class.
C. Increase the WRED max-threshold value for the mission-critical traffic class.
D. Decrease the WRED drop probability denominator for the mission-critical traffic class.
E. Decrease the queue-limit for the mission-critical traffic class.

Question #2
SIMULATION - LAB

A. Please click console

Question #3
SIMULATION - LAB

A. Please click console

Question #4
What is the purpose of using multiactions traffic policing?

A. so that traffic can be policed using two separate rates
B. so that class-based policing can mark at Layer 2 and Layer 3 at the same time
C. so that conform, exceed, and violate traffic can be marked with different CLPs
D. so that exceed traffic can be shaped and violate traffic can be policed
E. so that conform traffic from different flows can be marked with different DSCPs

Question #5
To determine the bandwidth requirement for each VoIP call, not including Layer 2 overhead, how much bandwidth per call should be added to account for the voice signaling traffic?

A. 150 bps
B. 640 bps
C. 40 bps
D. 240 bps
E. 480 bps
F. 20 bps

Solutions: