Question: In a 5G network, what is a capability of authorization for a UE (User Equipment) acting as a relay UE, as per the network operator's settings?
Option 1: The authorization can only be restricted to specific frequency bands.
Option 2: The authorization must allow relaying for all UEs regardless of their network operator or application layer group.
Option 3: The authorization can only be set up through direct network connections.
Option 4: The authorization can be restricted to relaying traffic only for remote UEs belonging to the same network operator or the same application layer group.
Explanation: This correct answer reflects the nuanced control that 5G system operators have over relay UE authorizations. It highlights the ability to restrict relaying based on either network operator identity or application layer grouping, showcasing the flexibility and security measures in place for managing indirect network connections within the 5G ecosystem.