MQTT Protocol Overview
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MQTT Protocol Overview

Learn about the Message Queuing Telemetry Transport (MQTT) protocol, a widely adopted standard in the Industrial Internet of Things. Explore its lightweight pub/sub messaging architecture designed for battery-powered devices and unreliable communication networks.

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@DurableUkulele

Questions and Answers

Which communication protocol is MQTT based on?

TCP/IP

What is the role of the broker in MQTT model?

Ensure security by cross-checking authorizations

Which Quality of Service mode in MQTT is the most reliable but also the most bandwidth-consuming?

QoS2 (Exactly once)

In MQTT, what does QoS1 (At least once) mode ensure?

<p>At least one message delivery</p> Signup and view all the answers

What type of protocol is MQTT?

<p>Publication/subscription type (pub/sub) messaging protocol</p> Signup and view all the answers

What is the special design focus of MQTT regarding devices?

<p>Low power consumption</p> Signup and view all the answers

What is one of the reasons why MQTT can be problematic for very restrictive devices?

<p>Transmission of messages over TCP</p> Signup and view all the answers

Which protocol variant of MQTT uses UDP and supports topic name indexing to address the issues faced by restrictive devices?

<p>MQTT-SN</p> Signup and view all the answers

What aspect of data representation and device management is a limitation of MQTT according to the text?

<p>Platform-specific data management</p> Signup and view all the answers

In a publish and subscribe system in MQTT, what does a device do when it subscribes to a particular topic?

<p>Receive messages published on that topic</p> Signup and view all the answers

How are topics represented in MQTT?

<p>With strings separated by forward slashes</p> Signup and view all the answers

What is one advantage of using MQTT in Internet of Things applications?

<p>Low-bandwidth requirements</p> Signup and view all the answers

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