EMERGING TRENDS IN COMPUTING
INTERNET OF THINGS IOT
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Question
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Lightweight message oriented middleware based on publish and subscribe model, with hierarchical topic(s) oriented. Devices connects to brokers over TCP protocol to publish or subscribe based on a topic. What is the protocol described?
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TCP
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MQTT
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CoAP
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AMQP
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Explanation:
Detailed explanation-1: -Message Queuing Telemetry Transport (MQTT) is a publish-subscribe architecture that is developed primarily to connect bandwidth and power-constrained devices over wireless networks. It is a simple and lightweight protocol that runs over TCP/IP sockets, WebSockets, and (Secure Sockets Layer) SSL.
Detailed explanation-2: -MQTT is considered a lightweight protocol because all its messages have a small code footprint. Each message consists of a fixed header–2 bytes–an optional variable header, a message payload that is limited to 256 megabytes (MB) of information and a quality of service (QoS) level.
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