Which term best describes data produced by devices and sensors in an IoT system?

• A. Sensor data
• B. Human generated data
• C. Machine generated data
• D. Device data

Answer: (C)

In IoT, the outputs come from the hardware itself—sensors, devices, and controllers—producing readings and telemetry automatically without human input. That makes the data “machine generated.” Sensor data is a part of this, since it specifically refers to measurements from sensors, but IoT data also includes device status, logs, and other telemetry from non-sensor sources. Human generated data isn’t appropriate here because there’s no human action driving the data in real time, and device data is too broad and doesn’t emphasize the machine-origin aspect. So the best term for the overall data produced by devices and sensors is machine generated data.