Question: What protocol is utilized by the MCData-FD-4 reference point for communication between the media storage client (on an MCData UE) and the media storage function (on an MCData content server) for file upload and download operations?
Option 1: FTP (File Transfer Protocol)
Option 2: SIP (Session Initiation Protocol)
Option 3: HTTP (Hypertext Transfer Protocol)
Option 4: TCP (Transmission Control Protocol)
Explanation: The correct answer is Option 3 because, according to the specifications for MCData services, the MCData-FD-4 reference point relies on HTTP for facilitating interactions such as file uploads and downloads between the media storage client on User Equipment (UE) and the media storage function on the content server. This choice highlights the practical application of HTTP in telecom networks for media transfer, which is a key aspect of mission-critical data services.