Question: What security mechanism is used to protect the xMB-C/MB2-C and xMB-U/MB2-U interfaces between the Application Function (AF) and the 5G Core Network (5GC) in Multimedia Broadcast Services (MBS)?
Option 1: IPsec
Option 2: TLS-based solution
Option 3: DTLS
Option 4: PGP
Explanation: The correct answer is Option 2 because, as per the security architecture and procedures for 5G System defined in 3GPP TS 33.501, a TLS-based solution is reused to protect the xMB-C/MB2-C and xMB-U/MB2-U interfaces between AF and 5GC in MBS. This ensures secure communication between these entities.