Nokia Certified Associate – Bell Labs Learning Academy — Question 15

What is the Network Repository Function (NRF)?

Answer options

• A. This network function is part of data repositories in the Common Data Layer and in opposition to the UDR, it stores non-standardized - unstructured — data.
• B. This network function is part of data repositories in the Common Data Layer. It stores 3GPP standardized data.
• C. This network function stores or retrieves subscriptions, profiles and authentication data to or from the data repositories. It offers services to the AMF, SMF, NEF and AUSF using the Service Based Interface.
• D. This network function provides registration and discovery functionality to enable other network functions/services to discover and communicate with each other.

Correct answer: C

Explanation

The correct answer, C, accurately describes the NRF's function of managing subscriptions, profiles, and authentication data and its interaction with other network functions. Options A and B incorrectly focus on data types rather than the NRF's core functionality, while option D, while related to service discovery, does not convey the comprehensive role of NRF in managing critical data.