350-801 · Question #388
What are two characteristics of QoS Traffic shaping? (Choose two.)
The correct answer is C. Traffic shaping queues excess packets. E. Traffic shaping can be applied to outbound traffic on an interface. Traffic shaping queues excess packets to smooth out bursts and is primarily applied to outbound traffic on an interface to regulate the transmission rate.
Question
What are two characteristics of QoS Traffic shaping? (Choose two.)
Options
- AWhen the traffic rate equals the configured maximum rate, excess traffic is remarked.
- BWhen the traffic rate equals the configured maximum rate, excess traffic is dropped.
- CTraffic shaping queues excess packets.
- DTraffic shaping can be applied to inbound traffic on an interface.
- ETraffic shaping can be applied to outbound traffic on an interface.
How the community answered
(50 responses)- A2% (1)
- B4% (2)
- C92% (46)
- D2% (1)
Why each option
Traffic shaping queues excess packets to smooth out bursts and is primarily applied to outbound traffic on an interface to regulate the transmission rate.
Traffic shaping's primary action for excess traffic is queuing and delaying, not remarking, which is a function more closely associated with traffic policing.
Excess traffic is dropped by traffic policing when it exceeds a configured rate, whereas traffic shaping's characteristic is to buffer and re-time the packets.
Traffic shaping utilizes a queue to buffer packets that exceed the configured rate, releasing them at a controlled pace rather than discarding them immediately.
Traffic shaping is typically implemented on outbound interfaces to manage the rate at which data exits a network segment, ensuring adherence to bandwidth limits or contracts.
Concept tested: QoS Traffic Shaping characteristics
Source: https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-qos-shaping-policing.html
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