Data logging is the recording of information such as temperature and equipment On/OFF status at regular intervals. Which option expresses this definition?

• A. The analysis of energy consumption patterns over months.
• B. The recording of information such as temperature and equipment On/OFF status at regular intervals.
• C. The real-time visual display of room occupancy.
• D. The generation of alarms for any deviation.

Answer: (B)

Data logging is about capturing and storing measurements over time at regular intervals, so you can see how things change and analyze trends later. The option described directly matches this idea by stating that information such as temperature and equipment On/OFF status is recorded at regular intervals, which is exactly what logging does. The other ideas focus on analyzing patterns, showing data in real time, or generating alerts, which are different tasks (analysis, visualization, and alerting) rather than the act of recording data for later review.