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Q6Service Design

Drag the QoS technologies from the left to their corresponding capabilities on the right. <DragDrop items={["low latency queuing","CB-WFQ","policing","traffic shaping"]} slots={[{"answer":"traffic shaping","id":"capability_1","label":"allows you to buffer traffic so that it adheres to the bandwidth provided by the service provider"},{"answer":"policing","id":"capability_2","label":"used for scavenger traffic when it exceeds a specified limit"},{"answer":"low latency queuing","id":"capability_3","label":"allows you to prioritize traffic"},{"answer":"CB-WFQ","id":"capability_4","label":"allows you to reserve bandwidth"}]} explanation={"Traffic shaping buffers packets and regulates their transmission rate to meet the available or committed service-provider bandwidth. Policing enforces a traffic limit by dropping or remarking excess packets, making it suitable for capped scavenger traffic. Low Latency Queuing supplies strict-priority treatment for delay-sensitive traffic. Class-Based Weighted Fair Queuing assigns bandwidth to traffic classes, allowing bandwidth to be reserved.\n\n**Learn more:** [Cisco QoS: Policing and Shaping Overview](https://www.cisco.com/c/en/us/td/docs/routers/ios/config/17-x/qos/b-quality-of-service/m_qos-plcshp-oview-0.html) · [Cisco QoS: Congestion Management (CBWFQ/LLQ)](https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_conmgt/configuration/xe-17/qos-conmgt-xe-17-book/qos-conmgt-oview.html)"} reuse={false} />

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Discussion · 8
16
traffic shaping > policing > llq > cbwfq?
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agree with you
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Correct order should be: * Traffic Shaping * Policing (When policing is applied to scavenger traffic, it can be used to enforce rate limits on the amount of bandwidth that scavenger traffic can consume.) *CB-WFQ *Low latency queing (Low Latency Queuing (LLQ) lets you reserve bandwidth for specific traffic classes, making sure they get preferential treatment over other traffic classes during periods of congestion.)
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Answer is correct: Traffic Shaping Policing CBWFQ LLQ
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Low-latency queuing (LLQ) is a feature developed by Cisco to bring strict priority queuing (PQ) to class-based weighted fair queuing (CBWFQ). Then it is wrong the answer.
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CBWFQ: "Once a class has been defined according to its match criteria, you can assign it characteristics. To characterize a class, you assign it bandwidth, weight, and maximum packet limit. The bandwidth assigned to a class is the guaranteed bandwidth delivered to the class during congestion." https://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/cbwfq.html
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Correct Answer should be: Traffic Shaping Policing LLQ- LLQ low-latency queuing is developed by Cisco, and it provides strict priority queuing to CBWFQ (class-based weighted fair queueing. Low-latency queuing provides delay-sensitive data like VoIP traffic to be given more preferential treatment over other traffic by letting the data be dequeued and sent first. CB-WFQ - CBWFQ (Class-Based Weighted Fair Queuing) it’s a scheduling mechanism that allows a minimum bandwidth guarantee when the network congestion occurs on an interface.
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@2026 traffic shaping: lets you buffer traffic so it stays within the bandwidth offered by the service provider. policing: used for scavenger traffic when it goes over a specified limit (typically drops or re-marks excess traffic). low latency queuing (LLQ): lets you prioritize traffic (important for voice/video). CB-WFQ (Class-Based Weighted Fair Queuing): lets you reserve bandwidth (makes sure specific classes get a minimum guarantee).