Question: In a 5G system, when a User Equipment (UE) connects to a hosting network and requested services are available from both networks, what can the home network operator indicate to the UE regarding service usage?
Option 1: The home network operator can specify which services should be used from the home network, while the remaining services are used from the hosting network.
Option 2: The home network operator must direct all service requests to the hosting network for optimization.
Option 3: The UE automatically defaults to using all available services from the hosting network without input from the home network operator.
Option 4: The decision is solely based on UE preferences, disregarding any potential input from the home network operator.
Explanation: This option correctly reflects the capability of the 5G system as per the service requirements. It allows the home network operator to influence the service selection (hosting vs. home network) for a UE connected to a hosting network, based on availability and agreements. This ensures flexibility in managing services across networks while respecting localized service agreements and optimizing Quality of Service (QoS).