Almost all types of detection permit a system’s sensitivity to be increased or decreased during an
inspection process. To have a valid measure of the system performance:

A.
The CER is used.

B.
the FRR is used

C.
the FAR is used

D.
none of the above choices is correct

Explanation:
“When a biometric system reject an authorized individual, it is called a Type 1 error.
When the system accepts impostors who should be rejected, it is called a Type II error. The goal is
to obtain low numbers for each type of error. When comparing different biometric systems, many
different variables are used, but one of the most important variables is the crossover error rate
(CER). This rating is stated in a percentage and represents the point at which the false rejection
rate equals the false acceptance rate. This rating is the most important measurement when
determining the system’s accuracy.” Pg 113 Shon Harris: All-in-One CISSP Certification