A company uses a 'Biometric' authentication system. The 'False Acceptance Rate' (FAR) is set to 0.01%. What does this mean?

Answer options:

The system will reject an authorized user 0.01% of the time.

The system is down 0.01% of the time.

The system will incorrectly allow an unauthorized person access 0.01% of the time.

The system requires 0.01 seconds to scan.

How to approach this question

False Acceptance = Accepting the wrong person. False Rejection = Rejecting the right person.

Full Answer

C.The system will incorrectly allow an unauthorized person access 0.01% of the time.✓ Correct

FAR (False Acceptance Rate) measures the likelihood that the biometric security system will incorrectly accept an access attempt by an unauthorized user. A low FAR is critical for high-security environments.

Common mistakes

Confusing FAR and FRR.

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