Final answer:
Device-based authentication is an authentication method that eliminates the need for passwords and verifies a user's identity based on the device's hardware or software characteristics.
Step-by-step explanation:
The authentication method that eliminates the need for passwords and verifies a user's identity based on the device's hardware or software characteristics is Device-based authentication. This method uses the unique characteristics of the device, such as the device ID, MAC address, or other hardware or software attributes, to verify the user's identity. By relying on device characteristics, this method eliminates the need for passwords and provides a more secure and convenient authentication process.