What are some advanced features of MQTT?
An example of an AI chatbot conversation about advanced MQTT features.
What are some advanced features of MQTT?
MQTT offers several advanced features like Quality of Service (QoS) levels, Last Will and Testament (LWT), and retained messages.
Can you explain the Quality of Service levels?
Sure! MQTT has three QoS levels: 0 (At most once), 1 (At least once), and 2 (Exactly once), which determine message delivery guarantees.
What is the Last Will and Testament feature?
The Last Will and Testament (LWT) feature allows a client to specify a message that will be sent by the broker if the client disconnects unexpectedly.
How do retained messages work?
Retained messages are stored by the broker and sent to new subscribers immediately upon subscription, ensuring they receive the latest message.
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