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What is the main responsibility of the MQTT server?
What is the main responsibility of the MQTT server?
When a device wants to send data to the MQTT broker, what operation is this called?
When a device wants to send data to the MQTT broker, what operation is this called?
When a device wants to receive data from the MQTT broker, what operation is this called?
When a device wants to receive data from the MQTT broker, what operation is this called?
What is the main difference between the GET and POST methods?
What is the main difference between the GET and POST methods?
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Which HTTP method should not be used when sending passwords or other sensitive information?
Which HTTP method should not be used when sending passwords or other sensitive information?
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What is the first step in writing code to establish a connection to the internet and display sensor data in a web browser?
What is the first step in writing code to establish a connection to the internet and display sensor data in a web browser?
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What is the primary function of the MQTT protocol?
What is the primary function of the MQTT protocol?
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In the MQTT protocol, what is the role of the publisher?
In the MQTT protocol, what is the role of the publisher?
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Which HTTP method is typically used to retrieve data from a web server?
Which HTTP method is typically used to retrieve data from a web server?
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What is the role of the MQTT broker in the publisher-subscriber model?
What is the role of the MQTT broker in the publisher-subscriber model?
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What is the purpose of the subscribe operation in the MQTT protocol?
What is the purpose of the subscribe operation in the MQTT protocol?
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Which step is typically required before an MQTT client can publish or subscribe to the broker?
Which step is typically required before an MQTT client can publish or subscribe to the broker?
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Which of the following statements about MQTT is correct?
Which of the following statements about MQTT is correct?
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What is the role of a broker in the MQTT protocol?
What is the role of a broker in the MQTT protocol?
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In the MQTT protocol, what does the term 'publish' refer to?
In the MQTT protocol, what does the term 'publish' refer to?
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How is the HTTP protocol different from the MQTT protocol?
How is the HTTP protocol different from the MQTT protocol?
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Which HTTP method is typically used to retrieve data from a server?
Which HTTP method is typically used to retrieve data from a server?
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What is the first step in establishing an internet connection for an MQTT client?
What is the first step in establishing an internet connection for an MQTT client?
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