A. LLQ allocates minimum bandwidth guaranteed to voice traffic.
B. LLQ allocates a priority queue to voice traffic at a guaranteed rate.
C. LLQ allocates a priority queue and a minimum guaranteed bandwidth queue for voice.
D. LLQ ensures that all traffic is treated fairly and hence voice traffic is not severely impacted.
Answer: B
Explanation
Low-latency queuing (LLQ) is used to give specific traffic classes higher priority when transmitting on the router’s WAN interface. Low Latency Queuing allows delay-sensitive data such as voice to be dequeued and sent first (before packets in other queues are dequeued), giving delay-sensitive data preferential treatment over other traffic.
The bandwidth given to an LLQ priority queue (PQ) is both the guaranteed minimum and policed maximum. This helps prevent the queue starvation that occurs with PQ.
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