People are having intermittent quality issues during a live meeting via a web application. How can the performance of this application be improved?

Quality of Service (QoS) involves classifying traffic, prioritizing it, and managing bandwidth. A QoS Profile is used to define the different QoS Classes, which categorize traffic based on specific criteria like application, port, or DSCP value. Once these classes are defined in a profile, a QoS Policy is then applied to enforce the prioritization and bandwidth allocation rules for these classified traffic flows, ensuring critical applications like live meetings receive preferential treatment.

QoS Classes are defined *within* a QoS Profile, not the other way around.

This option incorrectly states that QoS Classes define both QoS Profile and QoS Policy; instead, QoS Profile defines classes, and QoS Policy uses them.

This option is incomplete as it misses the crucial step of applying a QoS Policy to enforce the defined QoS classes.