Designing Cisco Enterprise Networks (ENSLD) — Question 275

A company plans to deploy a new application across the campus network and asks an engineer to create a QoS policy. The application has these characteristics:
• UDP-based
• inelastic flows
• sensitive to delay over 100 milliseconds
• sensitive to jitter over 50 milliseconds

The appropriate bandwidth is allocated and assigned to the queues. Which mechanism must the engineer use to manage the flows that exceed the configured threshold?

Answer options

Correct answer: A

Explanation

Policing is the correct choice as it is designed to enforce bandwidth limits by dropping or marking packets that exceed specified thresholds. Shaping, on the other hand, smooths traffic over time but does not drop packets immediately. Remarking alters the priority of packets instead of managing flow rates, and scheduling determines the order in which packets are sent but does not directly control excess flows.