What method uses unique physical traits for identification and access control?
Token-based authentication
Password protection
PIN code system
Biometric verification
Biometric verification - This is correct. Biometric verification uses unique physical traits, such as fingerprints, palm prints, facial recognition, iris scans, or voice patterns, for identification and access control. These traits are unique to individuals and provide a secure, non-transferable form of authentication.
Token-based authentication - This method relies on physical or digital tokens, such as smart cards or authentication apps, for access. It does not involve unique physical traits.
PIN code system - A PIN (Personal Identification Number) is a numeric code that provides access, but it is not based on physical traits and can be shared or guessed.
Password protection - Passwords are secret alphanumeric strings chosen by users for authentication. While secure if used correctly, they are not tied to unique physical traits.
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