Question: What is the primary purpose of the Nudr_GroupIDmap_query service operation in the 5G System (5GS)?
Option 1: To retrieve a list of available NF Types.
Option 2: To map an IP address to a subscriber identifier.
Option 3: To authenticate a subscriber based on their credentials.
Option 4: To provide the NF Group ID corresponding to a supplied subscriber identifier.
Explanation: The Nudr_GroupIDmap_query service operation is designed to retrieve the NF Group ID associated with a specific subscriber identifier, allowing the invoking Network Function (NF) to obtain this information for further processing or decision-making. This operation plays a crucial role in managing and coordinating network functions within the 5GS architecture.