Internet of Things (IoT) Practice Exam

What role do sensors play in IoT?

1. Transmitting data only

2. Collecting and transmitting data

3. Storing data

4. Filtering data

The correct answer is: Collecting and transmitting data

Sensors are fundamental components in the Internet of Things (IoT) ecosystem, and their primary role is to gather information from the physical environment and transmit that data for further processing or analysis. By collecting data such as temperature, humidity, light levels, motion, or pressure, sensors enable systems to gain real-time insights and respond to changing conditions. Once sensors collect this data, they typically transmit it to other devices or servers for storage and analysis, allowing for informed decision-making and automation. This dual function of both gathering and transmitting data is crucial for the operation of IoT systems, as it creates a seamless flow of information that can be utilized for various applications, such as smart homes, industrial automation, and environmental monitoring. The other functions mentioned in the other choices, such as storing or filtering data, do not represent the primary role of sensors within the IoT framework. While data storage and filtering are important aspects of data management, they are typically managed by other components in the IoT ecosystem, such as cloud services or edge computing devices. Thus, the emphasis on both collecting and transmitting data accurately captures the essential role of sensors in IoT.