Question: What is the primary purpose of the 'combined QoS monitoring' feature in a 5G system, as per service requirements?
Option 1: To monitor and report individual UE's QoS parameters separately for enhanced security.
Option 2: To provide a single interface for all QoS-related queries from authorized applications/network entities.
Option 3: To monitor and report the aggregated QoS performance of a group of User Equipment (UEs) together.
Option 4: To enable real-time logging of communication events without impacting network performance.
Explanation: Combined QoS monitoring is designed to allow the 5G system to monitor several UEs collectively, reporting their QoS metrics (e.g., service bit rates of all connections associated with the group) together. This feature facilitates a broader view of network performance across multiple users, aiding in more efficient network management and optimization.