CST Card Reader & Biometric Access 3

Question 1

What does a False Acceptance Rate (FAR) measure in biometric systems?

Accepted Answer

The percentage of unauthorized users incorrectly granted access

Answer

FAR measures how often an unauthorized individual is incorrectly accepted by the biometric system, representing a security failure.

Question 2

In a dual-technology card reader, what is the purpose of combining two reader technologies?

Accepted Answer

To require two different credential types for enhanced security

Answer

Dual-technology readers require two credential types (e.g., proximity + smart card) to be presented simultaneously, significantly raising the bar for unauthorized access.

Question 3

A biometric reader is experiencing a high False Rejection Rate (FRR). The FIRST corrective action should be to:

Accepted Answer

Re-enroll affected users with fresh, higher-quality templates

Answer

High FRR is often caused by poor-quality enrollment templates; re-enrolling users with careful, high-quality scans typically resolves the issue.

Question 4

What is the purpose of 'anti-passback' in an access control system?

Accepted Answer

Preventing a card from being used to exit before it has been used to enter

Answer

Anti-passback prevents a credential from being used to re-enter (or exit) a zone unless the corresponding entry (or exit) event was first recorded, stopping card sharing.

Question 5

Which power standard is commonly used to provide both data and power to networked access control readers and IP cameras?

Accepted Answer

PoE (Power over Ethernet)

Answer

PoE delivers electrical power alongside data over a standard Ethernet cable, simplifying installation of network-connected access devices.

(CST) Certified Surveillance Technician Practice Test

(CST) Certified Surveillance Technician Practice Test

CST Card Reader & Biometric Access 3