Quiz- MQTT

Test you knowledge and understanding of MQTT  with this short quiz.

Q1 -MQTT Is a Connection Orientated Protocol?

• True
• False

Q2 -MQTT Uses the UDP Protocol?

• True
• False

Q3 -MQTT Has 3 quality of service Levels?

• True
• False

Q4 –Each MQTT connection requires a unique client id?

• True
• False

Q5 –An MQTT client can publish and subscribe to an MQTT broker?

• True
• False

Q6 –An MQTT client can publish and subscribe directly to another MQTT Client?

• True
• False

Q7 –An MQTT topic must always start with a / (forward slash) ?

• True
• False

Q8 –A client can only publish on a topic if the broker has enabled that topic?

• True
• False

Q9 –A MQTT payload is text encoded as utf-8?

• True
• False

Q10 –A Broker can be instructed to store a session state by using the clean session flag in the connection payload?

• True
• False

Answers

1. True
2. False
3. True
4. True
5. True
6. False
7. False
8. False
9. False
10. True

Learning Resources

I have a book on Kindle where you can find all of the information from the site in one place, and some people prefer a book that they can read offline. I do not recommend that you buy the book if you have already read the tutorial listed below:

• How MQTT Works -Beginners Guide
• MQTT Publish and Subscribe Beginners Guide
• Using MQTT Over WebSockets with Mosquitto
• Understanding MQTT Topics
• Introduction to MQTT Security Mechanisms
• MQTT Retained Messages Explained
• MQTT Last Will and Testament Examples
• MQTT Clean Sessions and QOS Examples

Learning Resources

• Receiving Messages with the Paho MQTT Python Client
• Two Way communication Using MQTT and Python
• Handling Multiple Client Connections-Python MQTT
• Simple Python MQTT Publish and Subscribe Example Script
• My Python Working Notes
• Paho Python MQTT Client – Understanding Callbacks
• Paho Python MQTT Client-Understanding The Loop
• Paho Python MQTT Client Objects
• Python MQTT Client Connections– Working with Connections
• Paho Python MQTT Client – Publish With Examples