CompTIA Security+ (SY0-601) — Question 711

An organization wants to implement a biometric system with the highest likelihood that an unauthorized user will be denied access. Which of the following should the organization use to compare biometric solutions?

Answer options

• A. FRR
• B. Difficulty of use
• C. Cost
• D. FAR
• E. CER

Correct answer: D

Explanation

The correct answer is D, FAR (False Acceptance Rate), as it measures the likelihood that an unauthorized user is incorrectly granted access. FRR (A) assesses denied access for authorized users, which is not the primary concern here. Difficulty of use (B) and Cost (C) are important factors but do not directly measure security effectiveness. CER (E) combines both FAR and FRR, but does not singularly focus on unauthorized user access.