300-320 · Question #493
An engineer is configuring QoS to meet the following requirement. All traffic that exceeds the allocated bandwidth will still traverse the infrastructure, but will be buffered and queued for later…
The correct answer is D. Shaping. Traffic shaping delays excess traffic by placing it in a buffer/queue and releasing it at the configured rate when bandwidth becomes available - no packets are dropped. This matches the requirement exactly: excess traffic still traverses the network but is held temporarily…
Question
An engineer is configuring QoS to meet the following requirement. All traffic that exceeds the allocated bandwidth will still traverse the infrastructure, but will be buffered and queued for later transmission. Which QoS tool meets these requirements?
Options
- APer-Hop behaviours
- BWeighted Fair Queuing
- CIP Precedence
- DShaping
How the community answered
(42 responses)- A2% (1)
- B5% (2)
- C7% (3)
- D86% (36)
Explanation
Traffic shaping delays excess traffic by placing it in a buffer/queue and releasing it at the configured rate when bandwidth becomes available - no packets are dropped. This matches the requirement exactly: excess traffic still traverses the network but is held temporarily. Policing (not listed here) would drop or re-mark excess traffic. Per-Hop Behaviors (PHBs) are DSCP-based classification/forwarding behaviors, not a queuing mechanism. Weighted Fair Queuing (WFQ) allocates bandwidth fairly among flows but does not buffer traffic beyond the defined rate in the way shaping does. IP Precedence is a classification marking scheme, not a queuing tool.
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