CCNA: Cisco Certified Network Associate — Question 177

In QoS, which prioritization method is appropriate for interactive voice and video?

Answer options

• A. traffic policing
• B. round-robin scheduling
• C. low-latency queuing
• D. expedited forwarding

Correct answer: C

Explanation

Low-latency queuing (C) is designed to minimize delay for interactive applications like voice and video. Traffic policing (A) and round-robin scheduling (B) do not prioritize traffic effectively for real-time communication, while expedited forwarding (D) is a related concept but not specifically focused on minimizing latency for interactive applications.