350-401 · Question #1189
Drag and Drop Question Drag and drop the QoS mechanisms from the left onto their descriptions on the right. Answer:
The correct answer is policing; shaping; CoS. The correct arrangement matches each QoS mechanism to its defining behavior: Policing drops or re-marks traffic that exceeds a defined rate limit (hard enforcement with no buffering), Shaping buffers/delays excess traffic to conform to a rate limit (soft enforcement that smooths
Question
Drag and Drop Question Drag and drop the QoS mechanisms from the left onto their descriptions on the right. Answer:
Exhibit
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Correct arrangement
- policing
- shaping
- CoS
Explanation
The correct arrangement matches each QoS mechanism to its defining behavior: Policing drops or re-marks traffic that exceeds a defined rate limit (hard enforcement with no buffering), Shaping buffers/delays excess traffic to conform to a rate limit (soft enforcement that smooths traffic flow), and CoS (Class of Service) uses Layer 2 802.1p markings in the Ethernet frame header to classify and prioritize traffic. These three mechanisms represent distinct QoS functions - enforcement, smoothing, and classification/marking - and cannot be interchanged.
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