IoT Intern Interview Questions and Answers

Basic communication protocols of IoT include MQTT, CoAP, HTTP, and WebSocket.

• MQTT (Message Queuing Telemetry Transport) - lightweight publish/subscribe messaging protocol

• CoAP (Constrained Application Protocol) - designed for resource-constrained devices and networks

• HTTP (Hypertext Transfer Protocol) - widely used for communication between web servers and clients

• WebSocket - provides full-duplex communication channels over a single TCP connection

IoT stands for Internet of Things, which refers to the network of physical devices connected to the internet to collect and share data.

• IoT enables smart homes with devices like smart thermostats, lights, and security cameras.

• In agriculture, IoT can be used for precision farming by monitoring soil conditions and crop health.

• Healthcare utilizes IoT for remote patient monitoring and wearable devices like fitness trackers.

• Industrial IoT (IIoT) is used in manufacturing for predict...read more

MQTT is a lightweight messaging protocol for IoT devices to communicate over a network.

• MQTT uses a publish/subscribe model where clients can publish messages to a topic and subscribe to receive messages on that topic.

• It is designed for low-bandwidth, high-latency networks, making it ideal for IoT devices with limited resources.

• MQTT brokers act as intermediaries that route messages between publishers and subscribers.

• QoS levels (0, 1, 2) can be used to control the delivery guar...read more