Which iot protocol is commonly used for lightweight bidirectional communication between iot devices

MCQ Answer

Which IoT protocol is commonly used for lightweight, bidirectional communication between IoT devices and the cloud?

IoT उपकरणों और क्लाउड के बीच लाइटवेट , बाईडायरेक्शन संचार के लिए आमतौर पर किस IoT प्रोटोकॉल का उपयोग किया जाता है?

Topic : Introduction to IoT

A. MQTT (Message Queuing Telemetry Transport)

B. CoAP

C. HTTP/2

D. UDP (User Datagram Protocol)

Correct Answer is :

A. MQTT (Message Queuing Telemetry Transport)

Explanation

MQTT (Message Queuing Telemetry Transport)Designed for low-bandwidth, high-latency, or unstable networksUses publish/subscribe messaging patternIdeal for constrained devices (low power, low memory)Enables real-time, bidirectional communication (device ↔ cloud)