Question: What is the primary purpose of the QoS-Capability Attribute Value Pair (AVP) in EPS AAA interfaces, as per 3GPP specifications?
Option 1: To enumerate supported Quality of Service profile templates and their associated parameter AVPs.
Option 2: To describe Quality of Service resources for policing traffic flows in the network.
Option 3: To negotiate QoS parameters between the User Equipment (UE) and the Serving Gateway.
Option 4: To authenticate QoS requests from the Policy and Charging Rules Function (PCRF).
Explanation: The QoS-Capability AVP lists supported Quality of Service profile templates, including their parameter AVPs, for effective QoS management. Options 2, 3, and 4 are incorrect as they relate to QoS-Resources AVP, UE-network negotiations, and authentication processes, respectively.