Which authentication method uses physical characteristics like fingerprint or face?
- Knowledge-based
- Possession-based
- Inherence-based
- Location-based
Answer: Inherence-based
Inherence-based authentication uses biometric traits inherent to the user: fingerprint, iris, face, voice, or behavioral patterns. Part of multi-factor authentication (MFA). Advantages: hard to lose/share; challenges: privacy concerns, spoofing risks, and accessibility for disabled users.