Question: What is the primary requirement for Indirect Network Sharing in the 5G system?
Option 1: To prioritize traffic from Participating NG-RAN Operators over Hosting NG-RAN Operator's traffic.
Option 2: To ensure seamless handover between different Shared NG-RANs and non-Shared NG-RAN networks.
Option 3: To provide a dedicated network slice for each Participating NG-RAN Operator.
Option 4: To be transparent to the user, with no impact on UE behavior or service experience.
Explanation: The correct answer is Option 4 because Indirect Network Sharing is required to be transparent to the user, as stated in the NOTE 3 of the provided text. This means that the user should not experience any difference in service quality or behavior when accessing a Shared NG-RAN through Indirect Network Sharing.