Cisco
352-001 · Question #704
352-001 Question #704: Real Exam Question with Answer & Explanation
The correct answer is D: It enforces an upper limit on bursty data traffic. Traffic shaping enforces an upper rate limit on bursty traffic by buffering excess packets and releasing them at a controlled, sustained rate.
Question
Which statement about traffic shaping is true?
Options
- AIt works by minimizing data transmission intervals
- BIt separates data packets based on certain characteristics by using NBAR
- CIt regulates data transmission patterns into the network
- DIt enforces an upper limit on bursty data traffic
Explanation
Traffic shaping enforces an upper rate limit on bursty traffic by buffering excess packets and releasing them at a controlled, sustained rate.
Common mistakes.
- A. Shaping works by buffering and delaying excess traffic to smooth the rate of transmission; it does not minimize data transmission intervals.
- B. NBAR is a deep-packet-inspection classification tool used to identify application traffic; it is not a component of the traffic shaping process.
- C. While shaping does influence transmission patterns, this description is too vague and applies equally to policing and other QoS mechanisms - the defining and testable characteristic of shaping is its specific buffering approach to enforce a rate ceiling on bursts.
Concept tested. Traffic shaping rate enforcement and burst control mechanism
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