Internet of Things (IoT) Practice Exam

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What is an IoT gateway primarily classified as?

Physical device
Software program
Raspberry Pi
All of the above

The correct answer is: All of the above

An IoT gateway is primarily classified as a physical device. It serves as an intermediary between IoT devices and the cloud or the broader internet, facilitating communication, data processing, and management. Gateways typically handle various protocols, connect different devices, and provide necessary security measures. While it’s true that an IoT gateway can involve software programs for its functionality, the classification primarily hinges on the physical aspect, as the gateway is a tangible piece of hardware. Additionally, devices such as Raspberry Pi can serve as IoT gateways because they can run the necessary software and interface with sensors; however, Raspberry Pi itself is only one example within a broader category of potential physical devices for this purpose. Including "all of the above" in the answer may imply that every option is equally valid classifications of an IoT gateway, whereas the primary classification remains physical device due to its tangible nature and core function within the IoT ecosystem.