Question: Which protocols are utilized by the GM-UU reference point for transporting and routing group management related signaling in the context of Service Enabler Architecture Layer for Verticals (SEAL)?
Option 1: FTP (File Transfer Protocol) / SMTP (Simple Mail Transfer Protocol)
Option 2: HTTP-1/HTTP-2 (Hypertext Transfer Protocol) / SIP-1/SIP-2 (Session Initiation Protocol)
Option 3: SSH (Secure Shell) / TLS (Transport Layer Security)
Option 4: DNS (Domain Name System) / DHCP (Dynamic Host Configuration Protocol)
Explanation: In the context of telecom networks, particularly within SEAL, efficient and standardized protocols are crucial for signaling. HTTP-1/HTTP-2 is widely adopted for its reliability in transporting and routing data due to its request-response model, making it suitable for group management related signaling. Similarly, SIP-1/SIP-2, designed for initiating, maintaining, and terminating real-time communication sessions, fits well with subscription/notification signaling needs. This combination aligns with the requirements for managing groups effectively in a vertical service architecture, highlighting the importance of leveraging established, versatile protocols in telecom infrastructure.