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?
QoS can be used on firewalls with multiple virtual systems configured. This statement correctly reflects the capabilities of modern firewalls which support Quality of Service (QoS) policies even when multiple virtual systems are configured. This flexibility is important for network security engineers who need to manage traffic and ensure delivery guarantees across different virtualized environments on the same firewall.
Options C and D are virtually like giving you a 50:50 option and takes A and B out of the equation.
D is correct answer
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/quality-of-service/configure-qos-for-a-virtual-system#idfbf5eebb-9d91-%20444d-99e8-2330be00fa4d
D is correct: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/quality-of-service/configure-qos-for-a-virtual-system#idfbf5eebb-9d91-444d-99e8-2330be00fa4d
While D is indeed correct, QoS can be used without SSL decryption (it is less effective) and with. I don't see why not A, as well.
I agree with D from the links provided, but it seems like A is a valid statement as well/