Designing Cisco Network Service Architectures (ARCH, legacy) — Question 90

While designing a QoS policy for an organization, a network engineer is determining the method to limit the output rate of traffic within the real-time queue. How must the limiting of traffic within the real-time queue occur?

Answer options

• A. The traffic must be policed and not allowed to pass.
• B. The traffic must be shaped to allow for it to be transmitted after the tokens have been replenished.
• C. The traffic within the real-time queue must not be limited.
• D. The traffic must be remarked to a lower priority to and allowed to pass.

Correct answer: B

Explanation

The correct answer is B because traffic shaping allows for controlled transmission after the necessary tokens have been replenished, ensuring quality of service. Option A is incorrect as policing would block traffic rather than allow it to pass. Option C is wrong because limiting traffic in the real-time queue is essential for maintaining QoS. Option D is not suitable as remarking to a lower priority does not effectively manage real-time traffic flow.