Which statement best describes programming in IoT as per the example?

• A. All parts require programming
• B. Only the cloud requires programming
• C. Only sensors require programming
• D. Programming is not required for any part

Answer: (A)

In IoT, programming flows through every part of the system. The devices and sensors run firmware to collect data, handle commands, and interact with the network. Gateways or edge devices host software that preprocesses data, makes quick decisions, and routes information to the cloud. The cloud layer includes services for data ingestion, storage, processing, and APIs, all of which are built with code and logic. Applications and dashboards also require programming to fetch data, present it, and automate actions. Even when you use low-code tools or templates, you’re still configuring and extending behavior with code to fit a specific use case. So, the idea that all parts require programming best captures how IoT systems are typically built.