Question: What is the primary function of the Nnrf_NFDiscovery service in the 5G System?
Option 1: To enable one Network Function (NF) or Service Capability Platform (SCP) to discover a set of NF instances with specific NF services or target NF types.
Option 2: To allow NFs to communicate directly with each other without the need for a discovery service.
Option 3: To provide a platform for SCPs to offer their services to NFs.
Option 4: To enable NFs to discover and register with the Network Repository Function (NRF).
Explanation: The Nnrf_NFDiscovery service is designed to facilitate the discovery of NF instances or SCPs by other NFs or SCPs, allowing them to find specific services or target types. This enables efficient communication and interaction between different network functions in the 5G System.