Which action should Raisa take next to log specific events on the RADIUS server?

To effectively log specific events on a RADIUS server, configuring accounting is the most relevant and correct action. Accounting in the context of RADIUS refers to the process that records user sessions, authentication attempts, and the success or failure of these events. This is crucial for tracking user activity, auditing purposes, and troubleshooting.

In this case, changing log file properties might seem initially appealing, but it's not the intended action for capturing specific events related to user authentication. Instead, accounting should ensure that detailed logs of authentication requests and responses are generated, providing a comprehensive record of activities.

Adjusting log file properties may involve altering how logs are stored or the format of the logs, but it does not directly address the need to capture and log specific events as done with accounting configurations. Therefore, enabling or configuring accounting is the necessary step to ensure that the RADIUS server logs all relevant information regarding the authentication and authorization of users.