What is the main purpose of a token II device?

The main purpose of a token II device is to change user passwords automatically. This type of device is designed to enhance security by ensuring that user credentials are frequently updated without requiring manual intervention. By automating the password change process, it reduces the risk of unauthorized access due to static or easily guessed passwords. This feature is critical in environments where sensitive data is processed or accessed, as it helps maintain the integrity and confidentiality of the information.

While other options such as securely storing files, encrypting data transmissions, or monitoring network traffic represent important aspects of information security, they do not align with the primary function of a token II device, which is specifically focused on credential management.