MQTT runs on top of:
The MQIP protocol.
The TCP/IP protocol.
The IoT protocol.
The data for an MQTT message is known as:
Payload.
Packet.
Upload.
In MQTT version 3.1.1, the broker is named:
MQTT agent.
MQTT client.
MQTT server.
QoS level 0 for MQTT means:
Exactly once delivery
At most once delivery
At least once delivery
QoS level 1 for MQTT means:
Exactly once delivery
At most once delivery
At least once delivery
QoS level 2 for MQTT means:
Exactly once delivery
At most once delivery
At least once delivery
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