Biometric identification uses inherent personal characteristics (like iris, fingerprint, voice, face), whereas token-based systems rely on possessing an object (like a card or key).
Which one of the following does *not* fall under the category 'Biometrics', meant for personal identification related to access control?
Asked in UPSC CISF AC EXE 2021 · Topic: Cyber Security and Cyber Crimes (Cyber Security Technologies and Countermeasures: Firewalls, Intrusion Detection/Prevention Systems (IDS/IPS), Encryption, VPNs, Antivirus, Multi-factor Authentication)
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