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Cisco Quality of Service (QoS) Sample Questions:

1. Which three characteristics best describe a converged network? (Choose three.)

A) the random dropping of lower priority traffic to ensure that high-priority traffic gets through
B) prioritization and congestion management to ensure voice quality
C) the use of overprovisioning to ensure voice quality
D) the potential for poor voice quality due to other traffic
E) the separation of the voice and data networks into two networks to ensure voice quality
F) the use of a separate high-speed link for bulk traffic to avoid interference with other traffic

2. When configuring WFQ, what is the default number of dynamic queues based on?

A) hash of the packet headers
B) interface bandwidth
C) hold-queue limit
D) drop probability denominator
E) congestive discard threshold (CDT)
F) inter-packet arrival rate

3. Which of the following configurations requires the use of hierarchical policy maps?

A) the use of class-based WRED within a CBWFQ class queue
B) the use of nested class-maps with class-based marking
C) the use of both the bandwidth and shape statements within a CBWFQ class queue
D) the use of CBWFQ inside class-based shaping
E) the use of a strict priority-class queue within CBWFQ

4. HOTSPOT

5. Based on the following 2950 switch configurations, which statement is correct?
no wrr-queue cos-map wrr-queue bandwidth 20 10 70 1 wrr-queue cos-map 4 5 wrr-queue cos-map 1 0 1 2 3 wrr-queue cos-map 3 6 7

A) No queue is setup as the expedite queue.
B) Queue 3 is setup as the expedite queue.
C) Queue 4 is setup as the expedite queue.
D) Queue 2 is setup as the expedite queue.
E) Queue 1 is setup as the expedite queue.

Solutions: