Question: What is the primary purpose of the PCRF (Policy Control and Charging Rules Function) in a telecom network?
Option 1: To provide network control for service data flow detection, gating, QoS, and flow-based charging, while also informing Application Functions (AFs) of traffic plane events.
Option 2: To manage subscriber databases and handle NBIFOM routing rules exclusively.
Option 3: To detect application traffic and control it without involving the PCEF.
Option 4: To solely provision PCC Rules to the PCEF via the Gx reference point without considering other functionalities.
Explanation: The PCRF's primary purpose is to make policy control decisions and control flow-based charging, including service data flow detection, gating, QoS, and informing AFs of traffic plane events, highlighting its central role in managing network resources and policy enforcement.