Question

Select the statement(s) that are TRUE regarding 'Building Security Services'.

• A. 'Radio Frequency Identification Device' is used for electronic access control system.
• B. 'Magnetic Loop Detector' is used for fire detection system.
• C. 'Infrared Sensor' is used in public broadcasting system.
• D. 'Iris Scan' is a type of biometric access control system.

Hint:

- RFID = Smart cards / badges. - Magnetic Loop = Vehicle detection. - Infrared = Motion sensing / doors. - Iris Scan = Biometric access.

Answer 1

The Correct Option is A, D

Step 1: RFID (Radio Frequency Identification).
\n- RFID tags and readers are utilized in electronic access control, such as smart cards and entry gates. \n- Therefore, statement (A) is determined to be true. \n\n \n

Step 2: Magnetic Loop Detector.
\n- Magnetic loop detectors are installed beneath road surfaces to detect vehicles, commonly used in parking management and traffic signal systems. \n- These detectors are not employed for fire detection. \n- Consequently, statement (B) is established as false. \n\n \n

Step 3: Infrared Sensor.
\n- Infrared sensors find application in motion detection, thermal imaging, and automatic doors. \n- They are not used in public broadcasting. \n- Hence, statement (C) is identified as false. \n\n \n

Step 4: Iris Scan.
\n- Iris recognition is a biometric technology extensively used in secure access control systems. \n- As a result, statement (D) is confirmed as true. \n\n \n

Step 5: Conclusion.
\nIt is concluded that only statements (A) and (D) are accurate. \n\n \n

Final Answer: \n\[\n\boxed{\text{(A) and (D)}}\n\]