You are comparing biometric systems. Security is the top priority. A low ________ is most important
in this regard.

A.
FAR

B.
FRR

C.
MTBF

D.
ERR

Explanation:
When comparing biometric systems, a low false acceptance rate is most important when security is
the priority. Whereas, a low false rejection rate is most important when convenience is the priority.
All biometric implementations balance these two criteria.
Some systems use very high FAR’s such as 1 in 300. This means that the likelihood that the system
will accept someone other than the enrolled user is 1 in 300. However, the likelihood that the
system will reject the enrolled user (its FRR) is very low, giving them ease of use, but with low
security. Most fingerprint systems should be able to run with FARs of 1 in 10,000 or better.