Question: What is a key aspect of the Common API Framework (CAPIF) in terms of interactions between API-exposing functional entities, as per 3GPP specifications?
Option 1: CAPIF supports both intra-trust domain interactions (among multiple entities within one domain) and inter-trust domain interactions (between entities in different domains).
Option 2: CAPIF exclusively facilitates interactions for a single API-exposing functional entity across different trust domains.
Option 3: CAPIF only enables interactions between multiple API-exposing functional entities within the same trust domain.
Option 4: Interactions are limited to entities outside of the API provider's domain, with no support for internal domain interactions.
Explanation: This is correct because CAPIF is designed to enable flexible and secure interactions, which logically includes both scenarios of entities communicating within the same trust domain (intra) and across different trust domains (inter), aligning with the principles of a comprehensive API framework in telecom networks.