Which is a proper example of sensing in IoT?
Correct Answer: D. Measuring humidity using a humidity sensor
Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
Which is a common IoT output device?
Correct Answer: C. LED, buzzer, motor, or relay
Which is a common IoT input device?
Correct Answer: B. Light sensor
Which is the role of a microcontroller in an IoT node?
Correct Answer: A. Control sensors, execute code, and manage communication
Why is local processing useful in IoT?
Correct Answer: D. It can reduce latency and bandwidth use
Which best explains edge processing?
Correct Answer: C. Processing data near the source before sending it onward
Which device typically performs local filtering or aggregation of sensor readings?
Correct Answer: B. Edge device or gateway
Which is a common issue in IoT architecture?
Correct Answer: A. Heterogeneity of devices and protocols
Which term means different IoT devices can exchange and use information?
Correct Answer: D. Interoperability
Which term describes the ability of a system to keep working despite faults?
Correct Answer: C. Reliability
Which term describes the ability to add more devices without major redesign?
Correct Answer: B. Scalability
Which is a role of middleware in IoT?
Correct Answer: A. Support integration, data management, and communication between components