Question: Which of the following is NOT a primary function of the Application Layer on the Iuant interface in Telecommunication networks?
Option 1: Control of Remote Electrical Tilt (RET) antennas for optimizing cell coverage
Option 2: Application software and configuration data download for base station management
Option 3: User Data Encryption for secure communication between User Equipment (UE) and the network
Option 4: Alarm Reporting for fault management and network maintenance
Explanation: The correct answer is Option 3 because User Data Encryption, while crucial for secure communication in telecom networks, is not listed among the primary functions of the Application Layer on the Iuant interface. These functions focus more on device management, alarm reporting, and physical infrastructure control (e.g., RET antennas). User data encryption typically falls under security protocols managed at different layers or interfaces within the telecom network architecture.