Question: What type of QoS flows can be monitored for data rates at the PSA UPF?
Option 1: Only Non-GBR QoS flows
Option 2: Both Non-GBR and GBR QoS flows
Option 3: Only GBR QoS flows
Option 4: Neither Non-GBR nor GBR QoS flows
Explanation: According to the 5G system architecture, the QoS Monitoring for data rate at the PSA UPF can be applied to both Non-GBR (Non-Guaranteed Bit Rate) and GBR (Guaranteed Bit Rate) QoS flows. This allows for flexible monitoring of different types of traffic in the 5G network.