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What are Subscribers and Publishers in MQTT?



What are Subscribers and Publishers in MQTT?..

Answer / Sudhir Kumar Yadav

In MQTT (Message Queuing Telemetry Transport), a Subscriber is an entity that subscribes to one or more topics to receive messages, while a Publisher is an entity that publishes or sends messages to specific topics. A message can be sent by a Publisher and received by multiple Subscribers who have subscribed to the same topic.

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