A security administrator is evaluating three different biometric fingerprint scanners for a new access control system. Each vendor provides performance metrics, including false acceptance and false rejection rates. To determine which system offers the best overall accuracy, which of the following metrics should the administrator use for comparison?
The crossover error rate (CER) represents the point where the false acceptance rate (FAR) and the false rejection rate (FRR) are equal. A lower CER indicates a more accurate biometric system. This single metric provides the most effective way to compare the overall accuracy and performance of different biometric systems, as it encapsulates the trade-off between security (low FAR) and convenience (low FRR).
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What are FAR and FRR in biometrics?
Open an interactive chat with Bash
How is the crossover error rate (CER) calculated?
Open an interactive chat with Bash
Why is CER important when selecting a biometric system?