Palo Alto Networks Certified Network Security Engineer (PCNSE) — Question 273

A network security engineer must implement Quality of Service policies to ensure specific levels of delivery guarantees for various applications in the environment.
They want to ensure that they know as much as they can about QoS before deploying. Which statement about the QoS feature is correct?

Answer options

• A. QoS can be used in conjunction with SSL decryption
• B. QoS is only supported on hardware firewalls
• C. QoS is only supported on firewalls that have a single virtual system configured
• D. QoS can be used on firewalls with multiple virtual systems configured

Correct answer: D

Explanation

The correct answer is D because QoS can indeed be implemented on firewalls with multiple virtual systems, allowing for more flexible traffic management. Options A, B, and C are incorrect; A is not necessarily true as SSL decryption may have implications on QoS, B is inaccurate since QoS can be supported on software firewalls as well, and C is wrong because QoS is not limited to a single virtual system.