Qus : Which IoT protocol is commonly used for lightweight, bidirectional communication between IoT devices and the cloud?
QusIoT उपकरणों और क्लाउड के बीच लाइटवेट , बाईडायरेक्शन संचार के लिए आमतौर पर किस IoT प्रोटोकॉल का उपयोग किया जाता है?
A. MQTT (Message Queuing Telemetry Transport) B. CoAP
C. HTTP/2 D. UDP (User Datagram Protocol)
Solution
A. MQTT (Message Queuing Telemetry Transport)
Explanation
<p>MQTT (Message Queuing Telemetry Transport)</p><p>Designed for low-bandwidth, high-latency, or unstable networks</p><p>Uses publish/subscribe messaging pattern</p><p>Ideal for constrained devices (low power, low memory)</p><p>Enables real-time, bidirectional communication (device ↔ cloud)</p>