ITPEC FE Morning April 2023 Question 74

All items that can connect to the Internet or a closed network — IoT covers any thing that can exchange data over a network.

In the Internet of Things, sensors and communication functions are built into things such as home appliances, vehicles, industrial machines, meters and wearables, which send data to and take commands from other devices or servers. The network need not be the public Internet: a closed factory or in-house network counts too. What makes something part of IoT is its ability to connect and exchange data.

Answer (a)

Why not others:

• •(b) — IoT is defined by connectivity, not by the kind of object; wearable and medical devices that monitor people, and sensors on livestock or crops, are IoT applications
• •(c) — analog sensors such as thermometers and pressure gauges are included, their signals converted to digital (A/D conversion) for transmission
• •(d) — many IoT devices only collect and send data, and the analysis is done on a server or in the cloud; autonomy is not required

Key rule: IoT is about connecting things to a network to exchange data; whether the thing is analog, simple or attached to a living creature does not matter.

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