Question: In a Multimedia Broadcast/Multicast Service (MBMS) context, what is the primary purpose of the User Service Discovery / Announcement function?
Option 1: To manage the transmission resources for ongoing MBMS sessions.
Option 2: To provide service description information necessary to initiate an MBMS user service.
Option 3: To handle user feedback for broadcast services.
Option 4: To encrypt multimedia content for secure broadcasting.
Explanation: The correct answer, Option 2, highlights the key role of the User Service Discovery / Announcement function in providing essential service description information. This is crucial for users to discover and initiate MBMS services, aligning with the function's purpose as outlined in telecom standards for service discovery and announcement protocols. Options 1, 3, and 4 are incorrect because they either pertain to resource management (not directly related to service discovery), user interaction (beyond the scope of service announcement), or content security (a separate aspect of MBMS not covered by this function).