Which of the following could help detect trespassers in a secure facility? (Choose two.)
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A. B. C. D. E.BD.
The correct answers to the question are B. Motion-detection sensors and D. Security guards.
Explanation:
A. Faraday cages: A Faraday cage is an enclosure made up of conductive material that blocks electromagnetic fields. It is used to prevent electronic signals from entering or leaving the enclosure. It can be used to protect equipment and data from interference, but it is not useful in detecting trespassers in a secure facility.
B. Motion-detection sensors: Motion-detection sensors are used to detect movement within a specific area. They are commonly used in security systems to detect unauthorized entry or movement. When motion is detected, an alarm is triggered, and security personnel can investigate the source of the movement.
C. Tall, chain-link fencing: Tall, chain-link fencing can be an effective deterrent against trespassers, but it does not provide any way to detect intruders once they have breached the fence.
D. Security guards: Security guards are an essential component of any secure facility. They are trained to detect suspicious behavior and respond to potential threats. They can also monitor security systems, such as motion-detection sensors and surveillance cameras, to detect intruders and respond quickly.
E. Smart cards: Smart cards are a form of authentication that can be used to control access to secure facilities. They are not designed to detect trespassers, but rather to prevent unauthorized access by requiring individuals to present a valid card to gain entry.
In summary, motion-detection sensors and security guards are the most effective methods for detecting trespassers in a secure facility. Motion sensors detect movement and trigger an alarm, while security guards are trained to detect suspicious behavior and respond to potential threats.