Question: In a Service Enabler Architecture Layer for Verticals (SEAL) setup, where can the SEAL server(s) be deployed, and what is a possible relationship with VAL servers?
Option 1: Exclusively in the Public Land Mobile Network (PLMN) operator domain, always supporting a single VAL server.
Option 2: Only in the Vertical Application Layer (VAL) service provider domain, with no direct connection to the PLMN operator domain.
Option 3: Either in the PLMN operator domain or the VAL service provider domain, with the capability to support multiple VAL servers.
Option 4: Solely in a third-party, neutral domain, necessitating both PLMN and VAL service providers to connect through this intermediary.
Explanation: This option correctly reflects the flexibility in deployment locations for SEAL servers (both within the PLMN operator's domain or the VAL service provider's domain) while also highlighting their capacity to support multiple VAL servers, thus facilitating a more integrated and efficient service delivery across different vertical applications.