Which is a proper example of sensing in IoT?
Correct Answer: D. Measuring humidity using a humidity sensor
MCQ Collection
Internet of Things (IoT) MCQs
Internet of Things MCQs for students, university exams, smart devices, sensors, networks, and technology-related preparation.
Which term describes sensor data summarized before transmission?
Correct Answer: D. Aggregation
MQTT stands for:
Correct Answer: D. Message Queuing Telemetry Transport
In MQTT, topics are used to:
Correct Answer: D. Organize and route messages
Which problem can occur when too many IoT devices transmit at once?
Correct Answer: D. Channel congestion and packet collisions
Which is a common issue for application layer IoT protocols?
Correct Answer: D. Balancing simplicity, reliability, and overhead
Which is a proper example of actuation in IoT?
Correct Answer: A. Opening a valve after soil moisture becomes low
Which is a benefit of data aggregation in WSN/IoT?
Correct Answer: A. Reduced communication overhead and energy consumption
MQTT commonly follows which communication model?
Correct Answer: A. Publish/subscribe model
Quality of Service in MQTT is used to:
Correct Answer: A. Control message delivery assurance levels
Collision in wireless networking means:
Correct Answer: A. Two or more transmissions interfere with each other
Which protocol often uses a broker and topics?
Correct Answer: A. MQTT