Question: Which protocol is utilized for transporting and routing subscription/notification related signalling over the CSC-24 reference point between the Location Management Server and the Configuration Management Server?
Option 1: HTTP/1 (Hypertext Transfer Protocol version 1)
Option 2: HTTP/2 (Hypertext Transfer Protocol version 2)
Option 3: TCP/IP (Transmission Control Protocol/Internet Protocol)
Option 4: SIP-2 (Session Initiation Protocol version 2)
Explanation: The correct answer is SIP-2 because, according to the specifications for the CSC-24 reference point, SIP-2 is mandated for the transport and routing of signalling related to subscriptions and notifications. This highlights the importance of SIP in managing real-time communication sessions, which are crucial for mission-critical services that rely on timely location service updates.