Systems Security Certified Practitioner (SSCP) — Question 65

Which of the following biometric devices offers the LOWEST CER?

Answer options

• A. Keystroke dynamics
• B. Voice verification
• C. Iris scan
• D. Fingerprint

Correct answer: C

Explanation

The iris scan is known for its high accuracy and low Crossover Error Rate (CER), making it the most reliable option. In contrast, keystroke dynamics and voice verification are generally less stable due to variations in user behavior and environmental factors. Fingerprint recognition, while effective, can also be subject to errors due to factors like skin condition and residue.