Podcast
Questions and Answers
Which communication protocol is MQTT based on?
Which communication protocol is MQTT based on?
- SMTP
- TCP/IP (correct)
- HTTP
- UDP
What is the role of the broker in MQTT model?
What is the role of the broker in MQTT model?
- Ensure security by cross-checking authorizations (correct)
- Collect data from publishers
- Define the quality of the message
- Send information to subscribers
Which Quality of Service mode in MQTT is the most reliable but also the most bandwidth-consuming?
Which Quality of Service mode in MQTT is the most reliable but also the most bandwidth-consuming?
- QoS3 (Multiple times)
- QoS1 (At least once)
- QoS0 (At most once)
- QoS2 (Exactly once) (correct)
In MQTT, what does QoS1 (At least once) mode ensure?
In MQTT, what does QoS1 (At least once) mode ensure?
What type of protocol is MQTT?
What type of protocol is MQTT?
What is the special design focus of MQTT regarding devices?
What is the special design focus of MQTT regarding devices?
What is one of the reasons why MQTT can be problematic for very restrictive devices?
What is one of the reasons why MQTT can be problematic for very restrictive devices?
Which protocol variant of MQTT uses UDP and supports topic name indexing to address the issues faced by restrictive devices?
Which protocol variant of MQTT uses UDP and supports topic name indexing to address the issues faced by restrictive devices?
What aspect of data representation and device management is a limitation of MQTT according to the text?
What aspect of data representation and device management is a limitation of MQTT according to the text?
In a publish and subscribe system in MQTT, what does a device do when it subscribes to a particular topic?
In a publish and subscribe system in MQTT, what does a device do when it subscribes to a particular topic?
How are topics represented in MQTT?
How are topics represented in MQTT?
What is one advantage of using MQTT in Internet of Things applications?
What is one advantage of using MQTT in Internet of Things applications?
