What is biometric authentication used for?

Biometric authentication is a security process that utilizes unique biological traits to verify an individual's identity. This method relies on physical characteristics such as fingerprints, facial recognition, iris patterns, or voice recognition to grant access to devices or systems. Implementing biometric authentication enhances security because it is based on characteristics that are difficult to replicate or steal, making unauthorized access more challenging.

The other options relate to different functionalities: enhancing battery life pertains to power management in devices, improving screen resolution involves display technology and graphics, and managing application settings relates to software configuration. These choices do not connect to the concept of authentication, which is specifically focused on identity verification through biological traits.