Question: In a 5G network, when is the counter for 'Number of successful SM policy associations' incremented at the Policy Control Function (PCF)?
Option 1: Upon receipt of an Npcf_SMPolicyControl_Create request from the Session Management Function (SMF)
Option 2: On transmission by the PCF to the SMF of Npcf_SMPolicyControl_Create response
Option 3: During the setup of a new Packet Data Unit (PDU) session
Option 4: When a User Equipment (UE) attaches to the 5GS network
Explanation: This counter is updated when the PCF sends a response to an SM policy control create request, indicating a successful association, crucial for monitoring policy control effectiveness in the network.