(ISC)2 Certified in Cybersecurity Practice Exam

In order for a biometric security system to function properly, an authorized person's physiological data must be ______.

1. Broadcast

2. Stored

3. Deleted

4. Modified

The correct answer is: Stored

A biometric security system requires the physiological data of an authorized person to be stored. This is essential because the system needs to reference this stored data for comparison against the biometric input it receives when a user attempts to gain access. By storing the biometric templates—such as fingerprints, facial recognition data, or iris patterns—the system can analyze and determine whether the input matches the previously recorded data to authenticate the user. Broadcasting the physiological data would compromise the security of the system, as this would allow unauthorized access and interception. Deleting the data would eliminate the ability of the system to authenticate users, making it ineffective. Modifying the data could create mismatches and lead to false rejections or approvals, undermining the reliability of the biometric authentication. Thus, storing the physiological data is a critical step in ensuring that the biometric system can perform its intended function securely and effectively.