300-420 · Question #408
300-420 Question #408: Real Exam Question with Answer & Explanation
The correct answer is A: policing. Policing is used to enforce bandwidth limits by dropping or remarking packets that exceed the configured threshold, which is necessary for managing inelastic, delay- and jitter-sensitive UDP flows when they exceed the allocated resources.
Question
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?
Options
- Apolicing
- Bshaping
- Cremarking
- Dscheduling
Explanation
Policing is used to enforce bandwidth limits by dropping or remarking packets that exceed the configured threshold, which is necessary for managing inelastic, delay- and jitter-sensitive UDP flows when they exceed the allocated resources.
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