CO Access Control Systems
Contractor Exam Questions And
Correct Answers (Verified Answers)
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1. What is the primary purpose of an access control system?
A. To monitor employee productivity
B. To provide internet access
C. To restrict and control entry to authorized personnel
D. To enhance lighting efficiency
Rationale: The main function of an access control system is to ensure only
authorized individuals can access certain areas.
2. Which of the following is a common type of access control credential?
A. Key fob
B. Password
C. Biometric scan
D. All of the above
Rationale: Access control systems can use physical (key fobs), digital
(passwords), or biometric credentials to grant access.
3. What does “fail-secure” mean in an access control system?
A. Door unlocks when power is lost
B. Door remains locked when power is lost
C. System shuts down entirely
D. Alarm sounds continuously
,Rationale: Fail-secure means the door stays locked during a power failure
to maintain security.
4. What does “fail-safe” mean in an access control system?
A. Door remains locked during a power outage
B. Alarm system activates
C. Door unlocks when power is lost
D. System resets automatically
Rationale: Fail-safe ensures doors unlock during a power failure, typically
for safety and evacuation purposes.
5. Which type of lock is commonly used in electronic access control?
A. Deadbolt
B. Magnetic lock (maglock)
C. Padlock
D. Barrel lock
Rationale: Maglocks are widely used in access control systems because they
are electronically controlled and reliable.
6. Which of the following is considered a biometric authentication
method?
A. PIN code
B. Key card
C. Fingerprint scan
D. Password
Rationale: Biometric systems use physical or behavioral characteristics,
like fingerprints, for authentication.
7. Which of the following components is necessary for a card-based
access control system?
A. Reader
B. Controller
C. Credential
D. All of the above
, Rationale: A reader reads the credential, the controller processes it, and the
credential is what the user presents to gain access.
8. What is the main function of an access control panel?
A. Provide internet connectivity
B. Display security camera footage
C. Process access requests and control door hardware
D. Serve as a fire alarm control unit
Rationale: The access control panel is the central processing unit of the
system, verifying credentials and controlling locks.
9. Which communication protocol is commonly used in networked access
control systems?
A. HTTP
B. FTP
C. SMTP
D. TCP/IP
Rationale: Modern access control systems often use TCP/IP for network
communication between devices and controllers.
10. What is the purpose of a door strike in access control?
A. To detect motion
B. To store user credentials
C. To secure the door and allow it to open electronically
D. To monitor temperature
Rationale: A door strike is a metal plate installed in the door frame to
control door locking and unlocking electronically.
11. In a two-factor authentication system, which combination is
valid?
A. Fingerprint + fingerprint
B. Key card + PIN code
C. Password + password
D. Security camera + alarm
Contractor Exam Questions And
Correct Answers (Verified Answers)
Plus Rationale2026 Q&A| Instant
Download Pdf
1. What is the primary purpose of an access control system?
A. To monitor employee productivity
B. To provide internet access
C. To restrict and control entry to authorized personnel
D. To enhance lighting efficiency
Rationale: The main function of an access control system is to ensure only
authorized individuals can access certain areas.
2. Which of the following is a common type of access control credential?
A. Key fob
B. Password
C. Biometric scan
D. All of the above
Rationale: Access control systems can use physical (key fobs), digital
(passwords), or biometric credentials to grant access.
3. What does “fail-secure” mean in an access control system?
A. Door unlocks when power is lost
B. Door remains locked when power is lost
C. System shuts down entirely
D. Alarm sounds continuously
,Rationale: Fail-secure means the door stays locked during a power failure
to maintain security.
4. What does “fail-safe” mean in an access control system?
A. Door remains locked during a power outage
B. Alarm system activates
C. Door unlocks when power is lost
D. System resets automatically
Rationale: Fail-safe ensures doors unlock during a power failure, typically
for safety and evacuation purposes.
5. Which type of lock is commonly used in electronic access control?
A. Deadbolt
B. Magnetic lock (maglock)
C. Padlock
D. Barrel lock
Rationale: Maglocks are widely used in access control systems because they
are electronically controlled and reliable.
6. Which of the following is considered a biometric authentication
method?
A. PIN code
B. Key card
C. Fingerprint scan
D. Password
Rationale: Biometric systems use physical or behavioral characteristics,
like fingerprints, for authentication.
7. Which of the following components is necessary for a card-based
access control system?
A. Reader
B. Controller
C. Credential
D. All of the above
, Rationale: A reader reads the credential, the controller processes it, and the
credential is what the user presents to gain access.
8. What is the main function of an access control panel?
A. Provide internet connectivity
B. Display security camera footage
C. Process access requests and control door hardware
D. Serve as a fire alarm control unit
Rationale: The access control panel is the central processing unit of the
system, verifying credentials and controlling locks.
9. Which communication protocol is commonly used in networked access
control systems?
A. HTTP
B. FTP
C. SMTP
D. TCP/IP
Rationale: Modern access control systems often use TCP/IP for network
communication between devices and controllers.
10. What is the purpose of a door strike in access control?
A. To detect motion
B. To store user credentials
C. To secure the door and allow it to open electronically
D. To monitor temperature
Rationale: A door strike is a metal plate installed in the door frame to
control door locking and unlocking electronically.
11. In a two-factor authentication system, which combination is
valid?
A. Fingerprint + fingerprint
B. Key card + PIN code
C. Password + password
D. Security camera + alarm
