ExpertMedium1 markMultiple Choice
CPA · Question 60 · Area II: Security
A company uses a 'Biometric' authentication system. The 'False Acceptance Rate' (FAR) is set to 0.01%. What does this mean?
A company uses a 'Biometric' authentication system. The 'False Acceptance Rate' (FAR) is set to 0.01%. What does this mean?
Answer options:
A.
The system will reject an authorized user 0.01% of the time.
B.
The system is down 0.01% of the time.
C.
The system will incorrectly allow an unauthorized person access 0.01% of the time.
D.
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
C
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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