Question: What is the primary purpose of the OC-Supported-Features AVP in Diameter protocol?
Option 1: To manage user profile data for various services (e.g., MCPTT, MCVideo, MCData)
Option 2: To facilitate XML document exchanges between different servers and databases
Option 3: To provide authentication, authorization, and accounting (AAA) for network access
Option 4: To support Diameter overload control mechanism, enhancing network reliability
Explanation: The OC-Supported-Features AVP is specifically designed to support the Diameter overload control mechanism, preventing network overload and ensuring reliable operation of Diameter-based systems.