Question: What is the purpose of the "Insert Subscriber Data" procedure in the context of HSS user profile management?
Option 1: To delete subscriber data from the MME.
Option 2: To add or modify the HSS user profile in the MME when changes occur in the HSS.
Option 3: To retrieve subscriber data from the HSS.
Option 4: To update the MME with new subscriber information.
Explanation: The "Insert Subscriber Data" procedure is used to add or modify the HSS user profile in the MME when changes occur in the HSS, ensuring that the MME has the most up-to-date subscriber information. This procedure is essential for maintaining consistency between the HSS and MME, enabling efficient management of subscriber data and profiles.