Question: What is the primary purpose of the UPF reporting usage information to the SMF in a 5G network?
Option 1: To provide real-time traffic updates for network optimization.
Option 2: To support lawful interception and surveillance.
Option 3: To enable dynamic resource allocation based on user behavior.
Option 4: To facilitate Usage Monitoring and offline/online charging reporting.
Explanation: The UPF reports usage information to the SMF primarily for Usage Monitoring and charging purposes, allowing the SMF to combine reported data with session and subscriber-related information. This enables accurate billing, monitoring, and management of network resources in a 5G system.