How can FortiAuthenticator help facilitate this process?

An administrator is integrating FortiAuthenticator with an existing RADIUS server with the intent of eventually replacing the RADIUS server with FortiAuthenticator.

How can FortiAuthenticator help facilitate this process?
A . By configuring the RADIUS accounting proxy
B. By enabling automatic REST API calls from the RADIUS server
C. By enabling learning mode in the RADIUS server configuration
D. By importing the RADIUS user records

Answer: C

Explanation:

FortiAuthenticator can help facilitate the process of replacing an existing RADIUS server by enabling learning mode in the RADIUS server configuration. This allows FortiAuthenticator to learn user credentials from the existing RADIUS server and store them locally for future authentication requests2. This way, FortiAuthenticator can gradually take over the role of the RADIUS server without disrupting the user experience.

Reference: 2 https://docs.fortinet.com/document/fortiauthenticator/6.4.0/administration-guide/906179/radius-service#learning-mode