Palo Alto Networks Certified Network Security Engineer (PCNSE) — Question 388

An engineer is deploying VoIP and needs to ensure that voice traffic is treated with the highest priority on the network.

Which QoS priority should be assigned to such an application?

Answer options

• A. Medium
• B. Low
• C. High
• D. Real-time

Correct answer: D

Explanation

The correct answer is D, Real-time, because VoIP requires immediate transmission to maintain call quality, making it essential for this traffic to be prioritized. Options A, B, and C do not provide the necessary prioritization for voice traffic, which can lead to delays and poor user experiences.