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 WRED LLQ traffic shaping LFI CBWFQ WFQ

Can drop excess traffic beyond the committed rate and remark nonconforming traffic before transmitting it. traffic policing Use to avoid the TCP global synchronization problems that occur when tail drop is used as the congestion avoidance mechanism. WRED Provide a strict priority queue to allow delay-sensitive data such as voice to be dequeued and sent first. LLQ Excess traffic beyond the committed rate will be queued and scheduled for later transmission. Only applied in the output direction traffic shaping