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Cisco 642-642 Exam Syllabus Topics:

Cisco Quality of Service (QoS) Sample Questions:

Question 1

HOTSPOT

Question 2

In which two locations is the qos pre-classify command applied to support QoS preclassification over an IPSec/GRE tunnel? (Choose two.)

A. the physical interface
B. the tunnel interface
C. the crypto map
D. the policy-map
E. the class-map

Question 3

When LLQ is being configured, which IOS command is used to limit the traffic rate on the priority queue even when the other class queues are not congested?

A. priority
B. queue-limit
C. police
D. hold-queue
E. bandwidth

Question 4

What are two benefits of WFQ? (Choose two.)

A. WFQ can provide fixed-bandwidth guarantees.
B. Based on DSCP, WFQ allows weighted, random dropping of packets when the WFQ system is full.
C. WFQ is very easy to configure, and no manual traffic classification is necessary.
D. WFQ can provide fixed-bandwidth and fixed-delay guarantees.
E. WFQ prevents the large-volume flows with large packet size from starving out the low-volume flows with small packet size.
F. WFQ can provide fixed-delay guarantees.

Question 5

Refer to the exhibit. A service provider is considering several alternative provisioning schemes for a new network. One proposed scheme involves aggregating 10-Mbps links from customers into a network with multiple 100-Mbps links to ensure that the network links have at least two times the capacity of the aggregate of the customer links.
What is the most appropriate description for the proposed scheme?

A. oversubscription
B. Bandwidth-on-Demand
C. overprovisioning
D. CIR of 0
E. overaggregate

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