Drag each of the QoS mechanisms on the left to match the correct description on the right. (Not all options on the left are used.)
traffic policing
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WRED
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LLQ
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traffic shaping
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LFI
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CBWFQ
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WFQ
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Can drop excess traffic beyond the committed rate and remark nonconforming traffic before transmitting it.
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traffic policing
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Use to avoid the TCP global synchronization problems that occur when tail drop is used as the congestion avoidance mechanism.
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WRED
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Provide a strict priority queue to allow delay-sensitive data such as voice to be dequeued and sent first.
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LLQ
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Excess traffic beyond the committed rate will be queued and scheduled for later transmission. Only applied in the output direction
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traffic shaping
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