which of following is not a MQTT method?
Answers
Answer:
idk I don't give the option mate if u gived I will answer
Explanation:
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Answer:
A lightweight messaging protocol called MQTT (Message Queuing Telemetry Transport) gives network clients with limited resources an easy way to share telemetry data.
Explanation:
Connection, authentication, communication, and termination are the four phases of an MQTT session. In order to connect to the broker, a client first establishes a Transmission Control Protocol/Internet Protocol (TCP/IP) connection using either a normal port or a special port that has been set by the broker's operators. Publishers and subscribers are terminologies used to describe different types of MQTT clients, depending on whether they are actively posting messages or have subscribed to receive them. The same MQTT client can perform both of these tasks. A publish occurs when a device (or client) wishes to communicate data to a server (or broker). A subscription is what is used when the process is performed backward. Multiple clients can connect to a broker and subscribe to subjects they are interested in under the pub/sub model.
Thus, SSL/TLS may not always be an option and, in some circumstances, may not be desired because the MQTT protocol aspires to be a protocol for resource-constrained and IoT devices.