What two actions are required to ensure that a Chrome device can only be signed in by a specific employee?

To ensure that a Chrome device can only be signed in by a specific employee, disabling Guest Mode and Public Sessions is crucial. Guest Mode allows anyone to access the device without specific credentials, which would undermine the effort to limit sign-in to just one designated person. Public Sessions similarly could allow unauthorized users to access the device.

The second action, enabling a Device Policy of Restrict Sign In to List of Users, specifically allows administrators to define and limit the accounts that can sign in on that device. By creating a whitelist of users, the organization can ensure that only the specific employee, along with any other authorized individuals, can log into the Chrome device.

By combining these two actions, the security around the device is significantly tightened, ensuring that it is only accessible to designated users and preventing unauthorized access.