Question: What is a key requirement for the eMBMS (Evolved Multimedia Broadcast Multicast Services) service layer in supporting TV application services, particularly in terms of content delivery mechanisms?
Option 1: Exclusive support for unicast delivery to ensure personalized content.
Option 2: Support for delivery over broadcast only, unicast only, and combinations of both.
Option 3: Mandatory encryption for all types of content regardless of provider preferences.
Option 4: Restriction to only real-time content to maintain broadcast efficiency.
Explanation: This is correct because the eMBMS service layer is designed to offer flexibility in content delivery, catering to various scenarios and user needs. By supporting broadcast (for wide reach), unicast (for personalized content), and combinations of both, the eMBMS system can efficiently deliver TV services, aligning with the diverse requirements of TV Content Providers and end-users.