642-642 試験問題を無料オンラインアクセス

What are three methods of reducing delay for critical applications in a converged network? (Choose three.)

• A.Apply payload compression.
• B.Apply header compression.
• C.Reduce inter-packet gaps.
• D.Increase all queue depths.
• E.Increase LFI fragment size.
• F.Increase link capacities.

DRAG DROP
Drop

正解：

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

Which QoS mechanism calculates the mean queue depth to determine its operation?

• A.LLQ/CBWFQ
• B.class-based policing
• C.class-based shaping
• D.WRED
• E.WFQ

The qos pre-classify command can be configured under which two configuration modes? (Choose two.)

• A.router(config-crypto-map)#
• B.router(config-router)#
• C.router(config-if)#
• D.router(config-pmap-c)#
• E.router(config-cmap)#
• F.router(config)#