SSCP Access Controls Practice Question
In a biometric system, the point at which the false rejection rate (FRR) equals the false acceptance rate (FAR) is known as the:
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Crossover error rate (CER)
The crossover error rate (CER), also called the equal error rate (EER), is where FAR and FRR are equal, indicating overall accuracy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
False acceptance rate (FAR)
Why it's wrong here
FAR is only one component.
- ✓
Crossover error rate (CER)
Why this is correct
CER is the point where FAR equals FRR.
- ✗
Failure to enroll rate
Why it's wrong here
This is a different metric.
- ✗
False rejection rate (FRR)
Why it's wrong here
FRR is only one component.
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Same concept, more angles
1 more way this is tested on SSCP
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Variation 1. A biometric system has a high false rejection rate (FRR). Which of the following is a likely consequence?
medium- A.The system will require less frequent calibration
- B.Unauthorized users are more likely to gain access
- ✓ C.Legitimate users may be denied access, leading to frustration
- D.The system's crossover error rate (CER) will be very low
Why C: False rejection means legitimate users are denied access, causing inconvenience. This is often a trade-off when trying to lower false acceptance rate (FAR).
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.