Internet of Things Flashcards

The Internet of Things, often shortened to IoT, describes everyday physical objects that contain sensors, processors, and network connections so they can collect data and exchange information with other devices and software. This topic covers the basic ideas behind connected devices, the sensors and actuators that link them to the physical world, the communication protocols that carry their messages, the methods used to process data at the edge and in the cloud, and the security and privacy concerns that arise when many devices share information. Together these areas explain how a thermostat, a wearable fitness tracker, or a factory machine can participate in a larger networked system.

To study effectively, work through the five groups in order, since each builds on the vocabulary of the one before. Read each question, answer it aloud in your own words, and compare your response with the card. Pay attention to the reasons behind each answer, not only the terms, because exam questions often ask you to apply a principle to a new device. Review missed cards after a day or two, and try sketching a simple system, such as a smart doorbell, showing its sensors, network path, and data destination.