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单选题
How can Cisco NetFlow be used to aid in the operation and troubleshooting of QoS issues? ()
A

NetFlow can report on the number of traffic matches for each class map in a configured QoS policy configuration.

B

NetFlow records can be used to understand traffic profiles per class of service for data, voice, and video traffic.

C

NetFlow can discover the protocols in use and automatically adjust QoS traffic classes to meet policy-map requirements.

D

NetFlow can be configured to identify voice and video traffic flows and place them into a lowlatency queue for expedited processing.


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