What is the role of the application in an IoT system?
Correct Answer: B. Provide meaningful functions such as monitoring, alerts, or control
MCQ Collection
Internet of Things (IoT) MCQs
Internet of Things MCQs for students, university exams, smart devices, sensors, networks, and technology-related preparation.
Which of these is a common IoT processor platform type?
Correct Answer: B. Microcontroller-based board
In MQTT, the central server that receives and distributes messages is called:
Correct Answer: B. Broker
Which protocol is designed to be RESTful for constrained nodes?
Correct Answer: B. CoAP
A routing protocol for low-power lossy networks should consider:
Correct Answer: B. Energy, link quality, and reliability
Which protocol often maps well to sensor resources such as /temperature?
Correct Answer: B. CoAP
Which architecture element often stores large amounts of IoT data?
Correct Answer: C. Cloud platform or database
Which is the main role of a sensor interface?
Correct Answer: C. Connect sensors to the processing unit
In MQTT, a device that sends data on a topic is called a:
Correct Answer: C. Publisher
Which protocol is commonly used for web dashboards and APIs?
Correct Answer: C. HTTP/REST
RPL is commonly associated with:
Correct Answer: C. Routing in low-power and lossy networks
Why are lightweight protocols important for IoT?
Correct Answer: C. Many IoT devices have limited memory, processing, and energy