Correct Answers (Verified Answers) Plus Rationales
Q&A | Instant Download Pdf
1. What is the primary purpose of a CCTV system?
A. To replace security guards
B. To monitor and record activity in a defined area
C. To control access to buildings
D. To detect metal objects
Rationale: CCTV systems are designed to visually monitor and record
events for security and investigation purposes.
Answer: B
2. Which cable type is most commonly used for analog CCTV cameras?
A. HDMI
B. Cat 5e
,C. Coaxial
D. Fiber optic
Rationale: Coaxial cable is standard for analog video transmission due
to its shielding and signal integrity.
Answer: C
3. What does an IP camera transmit?
A. Only analog signals
B. Digital data over a network
C. Infrared signals only
D. Audio only
Rationale: IP cameras send digital video data over Ethernet or wireless
networks.
Answer: B
4. What is the function of a DVR in security systems?
A. Converts analog to digital only
B. Records analog camera footage
C. Powers cameras
D. Encrypts network traffic
,Rationale: DVRs record and store video from analog cameras.
Answer: B
5. What is the function of an NVR?
A. Records analog video
B. Manages alarms
C. Records IP camera video streams
D. Provides electrical power
Rationale: NVRs record digital video from IP-based cameras.
Answer: C
6. What is PoE used for?
A. Powering cameras and transmitting data through one cable
B. Encrypting video feeds
C. Increasing resolution
D. Compressing video files
Rationale: Power over Ethernet (PoE) delivers power and data over a
single Ethernet cable.
Answer: A
, 7. Which device controls access points in an access control system?
A. Switch
B. Reader
C. Controller
D. Camera
Rationale: Controllers make decisions based on credentials and grant or
deny access.
Answer: C
8. What type of credential is most secure?
A. Magnetic stripe card
B. PIN code
C. Biometric fingerprint
D. Barcode card
Rationale: Biometrics are harder to duplicate or share than physical
credentials.
Answer: C