Question: What is the primary function of the Policy Control Function (PCF) in the 5G System?
Option 1: To manage user authentication and authorization.
Option 2: To provide a unified policy framework to govern network behavior and enforce policy rules on Control Plane functions.
Option 3: To handle PDU Session management and mobility procedures.
Option 4: To store and retrieve subscription information in the Unified Data Repository (UDR).
Explanation: The Policy Control Function (PCF) plays a crucial role in governing network behavior by providing a unified policy framework. It enforces policy rules on Control Plane functions, ensuring that the network operates according to predefined policies. This functionality is essential for maintaining network performance, security, and quality of service.