Question: What is a requirement for the Common API Framework (CAPIF) in supporting 3rd party API providers, specifically regarding charging for their service APIs usage?
Option 1: The CAPIF shall support both online and offline charging for 3rd party API providers' service APIs usage.
Option 2: The CAPIF shall only support online charging for all 3rd party API providers' service APIs usage.
Option 3: The CAPIF is not required to support any form of charging for 3rd party API providers' service APIs usage.
Option 4: The CAPIF shall only provide offline charging capabilities for a select few 3rd party API providers.
Explanation: This is the correct answer because, as per the telecom standards for supporting diverse billing scenarios, the Common API Framework (CAPIF) needs to be versatile in its charging support. Both online and offline charging capabilities cater to different service usage patterns, ensuring flexibility for 3rd party API providers and their varied customer bases. This dual support is crucial for accommodating real-time billing (online) and post-service billing (offline) requirements.