Question: Which protocols are utilized by the CSC-14 reference point for transporting and routing non-subscription/notification related signaling between the location management client and server?
Option 1: SIP-1 and SIP-2 exclusively
Option 2: HTTP-1 and HTTP-2 exclusively
Option 3: A combination of SIP-1, SIP-2, HTTP-1, and HTTP-2 depending on the signaling type
Option 4: Only TCP/IP for all types of signaling
Explanation: The CSC-14 reference point employs a differentiated approach based on signaling type. For non-subscription/notification related signaling, it relies on HTTP-1 and HTTP-2, contrasting with subscription/notification signaling which uses SIP protocols, thus indicating a dual approach.