多选题What are two QoS mechanisms that are used to prevent packet loss？（）Aheader compressionBpayload compressionClow latency queuing （LLQ）Dweighted random early detection （WRED）Etraffic policingFtraffic shaping
多选题
What are two QoS mechanisms that are used to prevent packet loss？（）
A
header compression
B
payload compression
C
low latency queuing （LLQ）
D
weighted random early detection （WRED）
E
traffic policing
F
traffic shaping
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