To manage network congestion, which QoS mechanism enforces a maximum rate limit by discarding packets that exceed the specified limit?
Policing
Queuing
Shaping
Classification
Policing is the QoS mechanism that enforces a maximum rate limit by dropping packets that exceed the configured threshold. This action prevents excessive traffic from overwhelming network resources but can lead to packet loss and retransmissions. Shaping, in contrast, buffers excess packets and transmits them later, smoothing out traffic without immediate packet loss. Queuing arranges packets based on priority but doesn't enforce rate limits by discarding packets. Classification identifies and categorizes traffic but doesn't perform rate limiting or discard actions.
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