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Single Answer
0Leonidas is designing a physical intrusion detection system for use in a sensitive media storage facility and wants to include technology that issues an alert if the communications lines for the alarm system are unexpectedly cut. What technology would meet this requirement?
Answer Options
A
Heartbeat sensor
B
Emanation security
C
Motion detector
D
Faraday cage
Correct Answer: A
Explanation
Heartbeat sensors send periodic status messages from the alarm system to the monitoring center. The monitoring center triggers an alarm if it does not receive a status message for a prolonged period of time, indicating that communications were disrupted.