Which of the following actions is available when managing authenticated users from the Firebox System Manager?

The action of logging users out is a function that can be managed through the Firebox System Manager when dealing with authenticated users. This capability is particularly important for network administrators who need to maintain security and control over user sessions. By logging users out, the administrator can enforce session limits, immediately revoke access in response to security threats, or manage user sessions more effectively. This helps in maintaining the integrity of the network and ensuring that only authorized individuals have access at any given time.

While options such as changing user access levels, adding new users, and viewing user activity logs are also important tasks in user management, they can differ in availability based on the specifics of the Firebox System Manager's capabilities. The management environment is designed to provide flexibility and control, but the immediate action of logging users out serves as a direct way to manage current authenticated sessions effectively.