Question: What is the expected response message sent by AMF to PCF, indicating a successful update of AM policy association?
Option 1: 200 OK with additional configuration data
Option 2: 204 No Content response message
Option 3: 403 Forbidden due to policy restrictions
Option 4: 500 Internal Server Error indicating a failure
Explanation: In the context of 5G network management, specifically for Policy Control Function (PCF) interactions with Access and Mobility Management Function (AMF), a successful update of AM policy association is confirmed by AMF sending a '204 No Content' response message to PCF. This response indicates that the request has been successfully processed, but there is no additional content to return, which is appropriate for an update notification.