Introduction to the Internet of Things

Who coined the term “Internet of Things”?

What is the core goal of IoT?

In the three-layer architecture, which layer is the lowest and interacts with the physical environment?

What is the key difference between a sensor and an actuator?

Which component acts as the “brain” of an IoT device?

Which of the following is a short-range communication technology?

In the middleware layer, what is the role of an API?

In the five-layer architecture, which layer focuses on business models and strategic decision-making?

Which group lists common IoT communication protocols?

In the room-temperature scenario, what is the role of the controller?

IoT devices require sensors, software and connectivity to exchange data.

An actuator is an input device that measures physical phenomena.

In the three-layer architecture, the Network layer sits between the Perception and Application layers.

MQTT and CoAP are lightweight IoT protocols suitable for resource-constrained devices.

Interoperability means different devices and systems can work together seamlessly.

The middleware layer is responsible only for sensing data from the environment.

IoT reached the mass market widely back in the 1970s.

The microcontroller is considered the brain of an IoT device.

The Application layer is responsible for transmitting data between devices over the network.

The five-layer architecture includes a Middleware layer that is not explicit in the three-layer model.

Match each layer of the five-layer architecture with its function.

Match each connectivity technology with its range.

Match each component with its role in an IoT device.

Match each design principle with its meaning.

Match each technology category with an example.