Question: What is the primary purpose of the CAPIF-7 reference point between API exposing functions within the same trust domain in a PLMN (Public Land Mobile Network)?
Option 1: To manage security protocols for API invocations across different trust domains.
Option 2: To facilitate the forwarding or routing of service API invocations from one API exposing function to another within the same trust domain.
Option 3: To handle billing and charging for API services used by API invaders.
Option 4: To monitor network performance metrics for all API-related traffic.
Explanation: The correct answer, Option 2, accurately reflects the primary purpose of CAPIF-7. This reference point is utilized for the internal routing or forwarding of API service invocations within a single trust domain, enhancing the efficiency and organization of API management without breaching the domain's security perimeter.