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Which QoS feature responds to network congestion by dropping lower priority packets?
Correct Answer: C
WRED can selectively discard lower priority traffic when the interface begins to get congested and provide differentiated performance characteristics for different classes of service. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_conavd/configuration/15-mt/qos-conavd- 15-mt-book/qos-conavd- oview.html#:~:text=WRED%20can%20selectively%20discard%20lower,for%20different%20class es%20of%20service.