Question: In a 5GS architecture, which function does the Policy Control Function (PCF) exchange PCC rules with, as per the Policy and Charging Control (PCC) decisions?
Option 1: Application Function (AF)
Option 2: Bearer Binding and Event Reporting Function (BBERF) for QoS rules only
Option 3: Policy and Charging Enforcement Function (PCEF)
Option 4: Both BBERF for QoS rules and PCEF for PCC rules are incorrect, as PCF does not exchange with either
Explanation: In the context of 5GS and Policy and Charging Control, after the Policy Control Function (PCF) makes PCC decisions, it exchanges these PCC rules with the Policy and Charging Enforcement Function (PCEF) to enforce decided policies in the network. While PCF does exchange QoS rules with BBERF, the question specifically asks about PCC rules, making PCEF the correct answer.