Which statement about traffic policing and shaping is true?

Question

Options

• AShaping limits traffic rates by dropping, re-marking, or transmitting traffic.
• BPolicing involves regulating excessive traffic rates by delaying (that is, buffering) traffic.
• CTraffic policing and shaping help regulate bandwidth usage by limiting the amount of traffic.
• DTraffic policing is more suitable for lower-speed links such as Multilink PPP and Frame Relay, as

• A
  4% (1)
• B
  4% (1)
• C
  92% (22)

Explanation

Traffic policing and traffic shaping are both QoS mechanisms that regulate bandwidth usage by limiting the rate of traffic - this is what makes Option C correct and the best general statement about both. The key distinction is HOW they handle excess traffic: policing drops or re-marks packets that exceed the defined rate (no buffering), while shaping buffers excess packets to smooth the traffic rate over time. Option A is wrong because it describes policing behavior (drop/re-mark), not shaping. Option B is wrong because it describes shaping behavior (buffering/delaying), not policing. Option D is wrong because traffic shaping (not policing) is more appropriate for slower links like Frame Relay due to its buffering nature.

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