CST Card Reader & Biometric Access 2

Question 1

Which communication protocol is most commonly used between a card reader and an access control panel?

Accepted Answer

Wiegand

Answer

Wiegand is the industry-standard protocol for transmitting card data from a reader to an access control panel.

Question 2

What is 'tailgating' in the context of access control?

Accepted Answer

An unauthorized person following an authorized person through a secured door

Answer

Tailgating occurs when an unauthorized individual closely follows an authorized user through a secured entry point before the door closes.

Question 3

A proximity card reader stops responding after a nearby lightning strike. The most likely damaged component is the:

Accepted Answer

Reader's surge protection or internal circuitry

Answer

Lightning-induced surges most commonly damage the reader's electronics, particularly if surge protection devices are absent or insufficient.

Question 4

OSDP (Open Supervised Device Protocol) provides an advantage over Wiegand because it:

Accepted Answer

Supports bidirectional encrypted communication between reader and panel

Answer

OSDP supports bidirectional, encrypted communication, allowing the panel to receive status from and send commands to the reader — unlike the one-way Wiegand protocol.

Question 5

When enrolling a finger for a fingerprint reader, best practice requires capturing how many sample scans?

Accepted Answer

3 to 5

Answer

Capturing 3 to 5 sample scans during enrollment creates a more robust biometric template and reduces false rejections.

(CST) Certified Surveillance Technician Practice Test

(CST) Certified Surveillance Technician Practice Test

CST Card Reader & Biometric Access 2