HPE Aruba Certified Professional (ACP) – SD-WAN — Question 100

Which queuing mechanism should you configure to ensure voice traffic is always forwarded with the highest priority?

Answer options

• A. Weighted Fair Queuing (WFQ)
• B. Virtual output queuing (VOQ)
• C. First In First Out (FIFO) queueing
• D. Strict Priority (SP) queuing

Correct answer: D

Explanation

Strict Priority (SP) queuing is designed to ensure that certain types of traffic, such as voice, are transmitted before other types, providing them with the highest priority. In contrast, Weighted Fair Queuing (WFQ) allocates bandwidth based on the weight assigned to each flow, while FIFO processes packets in the order they arrive, which may not prioritize voice traffic. Virtual output queuing (VOQ) is more about managing congestion and is not specifically aimed at prioritizing voice traffic.