Question: What is the primary purpose of using an Associated Session ID in NG-RAN?
Option 1: To enable AF to create multiple unicast MBS Sessions via different Core Networks.
Option 2: To allow NG-RAN to identify the multiple MBS sessions delivering the same content when AF creates multiple broadcast MBS Sessions via different Core Networks.
Option 3: To facilitate the encoding of Associated Session ID in 4G SBIs.
Option 4: To support the use of Source Specific IP Multicast Address (SSM) in network sharing scenarios.
Explanation: The correct answer is Option 2 because the primary purpose of using an Associated Session ID in NG-RAN is to enable it to identify multiple MBS sessions delivering the same content when AF creates multiple broadcast MBS Sessions via different Core Networks, as stated in the provided text. This is particularly relevant in network sharing scenarios.