Question: Which transport and routing protocols are mandated for the KM-S reference point to convey security-related information from the Key Management Server to the VAL server in a SEAL architecture?
Option 1: TCP/IP and FTP
Option 2: HTTP-1 and HTTP-2 signalling control plane
Option 3: SSH and SFTP
Option 4: DNS and DHCP
Explanation: In the context of telecom's Service Enabler Architecture Layer for Verticals (SEAL), efficient and secure communication between components is crucial. The KM-S reference point requires reliable transport and routing protocols. HTTP-1 and HTTP-2 signalling control plane are specified due to their efficiency in request-response operations, aligning well with security information exchange needs (e.g., encryption keys) between servers, ensuring both security and high-volume request handling capability in a SEAL setup.