9.5.14 Check Your Understanding – QoS Implementation Techniques Answers

1. Which detects when traffic rates reach a configured maximum rate and drops excess traffic?

  • traffic policing
  • traffic shaping
  • classification

Explanation: Traffic policing drops excess traffic when it reaches a configured maximum rate.

2. Which determines what class of traffic packets or frames belong to.

  • marking
  • classification
  • traffic shaping

Explanation: Classification determines the class to which packets or frames belong.

3. Which adds a value to the packet header?

  • marking
  • classification
  • 802.1Q

Explanation: The QoS marking mechanism adds a value to the packet header.

4. Which provides buffer management and allows TCP traffic to throttle back before buffers are exhausted?

  • traffic policing
  • 802.1Q
  • WRED

Explanation: The WRED algorithm throttles back TCP traffic before buffers become exhausted.

5. Which retains excess packets in a queue and then schedules the excess for later transmission over increments of time?

  • WRED
  • traffic policing
  • traffic shaping

Explanation: Traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time.

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