PCNSE · Question #100
People are having intermittent quality issues during a live meeting via web application.
The correct answer is C. Use QoS Profile to define QoS Classes and a QoS Policy. To improve live meeting quality using QoS, a QoS Profile is used to define QoS Classes, which are then applied to specific traffic via a QoS Policy.
Question
People are having intermittent quality issues during a live meeting via web application.
Options
- AUse QoS profile to define QoS Classes
- BUse QoS Classes to define QoS Profile
- CUse QoS Profile to define QoS Classes and a QoS Policy
- DUse QoS Classes to define QoS Profile and a QoS Policy
How the community answered
(27 responses)- A4% (1)
- B11% (3)
- C81% (22)
- D4% (1)
Why each option
To improve live meeting quality using QoS, a QoS Profile is used to define QoS Classes, which are then applied to specific traffic via a QoS Policy.
This option is incomplete; while QoS profiles define classes, a separate QoS Policy is also required to *apply* these classes to actual traffic flows.
This reverses the correct workflow; QoS Profiles are used to define QoS Classes, not the other way around.
In Palo Alto Networks, a QoS Profile defines various QoS Classes to prioritize different traffic types, and a QoS Policy is then created to classify specific application traffic, such as live meeting web applications, into these defined classes for appropriate quality of service application.
This option reverses the correct workflow; QoS Profiles define QoS Classes, and then QoS Policies apply those classifications, not the inverse.
Concept tested: QoS configuration workflow (Profile, Class, Policy)
Source: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/quality-of-service/qos-overview
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