In a simple IoT diagram, what type of device is a door alarm?

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Multiple Choice

In a simple IoT diagram, what type of device is a door alarm?

Understanding the role being tested: in IoT diagrams, a door alarm is primarily a sensing device. Sensors detect something about the environment or system and report that information to the network. A door alarm’s main job is to monitor the door’s status—whether it’s open or closed—and send that data to the control system or cloud so an alert can be generated if needed. Actuators are the parts that take action, like sounding a siren or locking a door, based on input, and a control unit is the processing brain that analyzes data. Since the door alarm’s core function is to sense and report the door state, it fits best as a sensor.

Understanding the role being tested: in IoT diagrams, a door alarm is primarily a sensing device. Sensors detect something about the environment or system and report that information to the network. A door alarm’s main job is to monitor the door’s status—whether it’s open or closed—and send that data to the control system or cloud so an alert can be generated if needed. Actuators are the parts that take action, like sounding a siren or locking a door, based on input, and a control unit is the processing brain that analyzes data. Since the door alarm’s core function is to sense and report the door state, it fits best as a sensor.

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