Question: What is the primary purpose of the `CAPIF_API_provider_management` API in a 3GPP Northbound API framework?
Option 1: To facilitate communication between the API Management Function and CAPIF core function for registering authorized API provider domain functions.
Option 2: To manage subscriber data across different network slices in a 5G environment.
Option 3: To handle handover decisions between LTE and 5G RAN (Radio Access Network) technologies.
Option 4: To optimize Quality of Service (QoS) for IoT devices connected to the network.
Explanation: The correct answer, Option 1, accurately reflects the primary purpose of the `CAPIF_API_provider_management` API. This API is crucial for authorizing and managing API provider domain functions' access to CAPIF functionalities, ensuring secure and controlled utilization of core network capabilities. Options 2, 3, and 4 are incorrect because they pertain to different aspects of telecom networks (network slicing, handover management, and QoS optimization, respectively), unrelated to the specific function of this API.