What must an administrator configure to prevent GUI sessions from disconnecting too early due to inactivity?

The correct option to configure in order to prevent GUI sessions from disconnecting too early due to inactivity is to increase the idle timeout parameter in the NOC_Access admin profile. This specific setting directly pertains to how long the system will keep an administrator's session active when there's no user activity. By adjusting this parameter, the administrator can effectively manage the idle time limit and ensure that sessions are not prematurely terminated, allowing for a more seamless user experience.

Other options, while potentially related to connection management, do not directly address the issue of GUI session disconnection due to inactivity. Increasing the session timeout value, for example, generally pertains to the overall session management rather than being specifically tailored to admin GUI sessions. Adjusting firewall session settings relates more to traffic flow and session management within the network rather than user interface sessions. Enabling session persistence is typically associated with maintaining a consistent user experience over multiple sessions but does not specifically mitigate disconnections due to inactivity in the GUI context. Thus, focusing on the idle timeout within the admin profile is the most effective approach for this scenario.