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.