Question: In a 5G Network, which functional entity requests the PSA (Packed Switch Architecture) User Plane Function (UPF) to perform QoS monitoring per QoS flow per User Equipment (UE) when enabled?
Option 1: Session Management Function (SMF)
Option 2: Access and Mobility Management Function (AMF)
Option 3: Network Exposure Function (NEF)
Option 4: Policy Control Function (PCF)
Explanation: The correct answer is the Session Management Function (SMF) because, as per the described telecom concept, the SMF is responsible for managing sessions and, by extension, the QoS aspects related to those sessions. Requesting QoS monitoring per QoS flow per UE aligns with the SMF's role in ensuring the desired Quality of Service is maintained for each user's session, making it the logical entity to interact with the UPF for this purpose.