Question: Upon successful creation of a new DNAI Mapping Subscription, what does the Network Exposure Function (NEF) return to the Application Function (AF) in its HTTP POST response?
Option 1: An HTTP '200 OK' status code with an empty response body
Option 2: An HTTP '201 Created' status code without any headers or response body
Option 3: An HTTP '201 Created' status code, including a 'Location' header with the URI of the created resource and its representation in the response body
Option 4: An HTTP '202 Accepted' status code with a scheduled creation time for the subscription
Explanation: Upon successful DNAI Mapping subscription creation, the NEF informs the AF about the outcome, providing confirmation and details about the newly created resource. This is achieved by returning an HTTP '201 Created' status code, signifying a new resource has been created. Including a 'Location' header with the URI of the created resource and its representation in the response body enables the AF to readily access and manage the new subscription, aligning with standard HTTP protocol practices for resource creation.