Question: In an Isolated Operation for Public Safety (IOPS) mode, where is the IOPS connectivity client functional entity typically located to facilitate registration and discovery of a user by the IOPS Mission Critical (MC) system?
Option 1: Mission Critical Service User Equipment (MC service UE)
Option 2: IOPS MC System Server
Option 3: Public Safety Network Core
Option 4: External Registration Server
Explanation: The correct location of the IOPS connectivity client functional entity is crucial for enabling users of Mission Critical (MC) services to be registered and discovered by the IOPS MC system during isolated operations. Locating this entity within the MC service User Equipment (UE) ensures direct support for the user's device, facilitating seamless communication with the IOPS MC system. This setup is vital for public safety communications in isolated environments where traditional network infrastructure may not be available.