CCNA: Cisco Certified Network Associate — Question 482

Which per-hop traffic-control feature does an ISP implement to mitigate the potential negative effects of a customer exceeding its committed bandwidth?

Answer options

• A. policing
• B. queuing
• C. marking
• D. shaping

Correct answer: A

Explanation

The correct answer is A, policing, which is used to enforce bandwidth limits by dropping or marking packets that exceed the committed rate. Other options like queuing, marking, and shaping serve different purposes, such as managing packet transmission order, indicating priority levels, and smoothing traffic flow, respectively, but do not directly limit bandwidth usage.