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MQTT and Node-RED Setup Quiz
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MQTT and Node-RED Setup Quiz

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Questions and Answers

What is MQTT?

  • A type of wireless communication technology
  • A messaging protocol for low bandwidth devices and environments (correct)
  • A high-level programming language
  • A messaging protocol for high bandwidth devices and environments

    • What is needed to deploy an MQTT server with Node-RED on Raspberry Pi?

  • MQTT-enabled smart home devices
  • An MQTT client
  • The 32-bit Lite version of Raspberry Pi OS
  • The 64-bit Lite version of Raspberry Pi OS (correct)

    • How can you connect to your Raspberry Pi over SSH?

  • Using an HDMI cable
  • Using a Bluetooth connection
  • Using PuTTY on Windows or Terminal on macOS and Linux (correct)
  • Using a USB cable

    • What is Node-RED used for?

    <p>To publish messages or send and receive payloads to or from smart devices</p> Signup and view all the answers

    How can you check if the MQTT broker is working or not?

    <p>By installing MQTTLens or a similar MQTT app in Chrome or any other web browser</p> Signup and view all the answers

    What can you use the payload for in Node-RED?

    <p>To trigger smart devices to switch on/off</p> Signup and view all the answers

    What can you build using MAX7219 dot matrix and connect to your MQTT server?

    <p>A DIY smart clock</p> Signup and view all the answers

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