Centralized authentication using RADIUS is beneficial because it:

Centralized authentication using RADIUS provides significant advantages, particularly in user management. This system allows for a unified method of handling user credentials across multiple devices and services. When RADIUS is deployed, any changes to user access, such as adding, removing, or modifying accounts, can be made in one central location. This streamlines the process and reduces the administrative burden of managing users in a decentralized manner where each device or service would require individual updates.

This approach not only enhances security by providing consistent access controls but also allows for the implementation of policies that can easily be enforced across the network. As a result, if a user needs to be granted access or revoked, the change is made once in the RADIUS server instead of repetitively across each system, which minimizes the risk of inconsistency and potential security vulnerabilities.