Question: In a 5G Core Network (5GC), what is the primary purpose of the Network Function Repository Function (NRF) in relation to Service Discovery?
Option 1: To authenticate User Equipment (UE) for network access
Option 2: To manage Quality of Service (QoS) parameters for ongoing sessions
Option 3: To monitor and analyze network traffic for security threats
Option 4: To provide information on available Network Function (NF) instances supporting specific services upon receiving NF Discovery Requests
Explanation: The NRF plays a crucial role in service discovery within the 5G Core Network. It receives discovery requests from NF or SCP instances and responds with details of available NF instances that meet certain criteria, such as supporting a particular service. This functionality is essential for efficient network operation, enabling other network functions to discover and utilize appropriate services dynamically.