What is a characteristic of the message queueing telemetry transport (MQTT) protocol?
- It is mainly used for instant messaging.
- The MQTT protocol requires a message broker.
- MQTT uses the User Datagram Protocol.
- It is designed to connect servers together.
Explanation: MQTT requires a message broker that manages communication between publisher and subscriber clients.
Exam with this question: IoT Security 1.1 Chapter 5 Quiz Answers
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