IoT Systems MCQ

Q1. What is IoT (Internet of Things)?

Correct Answer: B

IoT connects physical devices to the internet for data exchange.

Q2. Which is a basic component of IoT system?

Correct Answer: B

IoT systems use sensors and actuators to interact with environment.

Q3. What is sensor in IoT?

Correct Answer: B

Sensors detect physical parameters like temperature, humidity.

Q4. What is actuator in IoT?

Correct Answer: B

Actuators convert signals into physical actions.

Q5. What is IoT gateway?

Correct Answer: B

Gateway manages communication between devices and cloud.

Q6. Which communication protocol is used in IoT?

Correct Answer: B

MQTT is widely used for IoT communication.

Q7. What is MQTT?

Correct Answer: B

MQTT is a lightweight messaging protocol for IoT.

Q8. What is cloud computing in IoT?

Correct Answer: B

Cloud handles IoT data storage and analytics.

Q9. What is edge computing in IoT?

Correct Answer: B

Edge computing reduces latency by local processing.

Q10. What is fog computing?

Correct Answer: B

Fog computing extends cloud closer to devices.

Q11. What is IoT platform?

Correct Answer: B

IoT platforms manage devices and data.

Q12. Which is an example of IoT device?

Correct Answer: A

Smart thermostat is connected to internet.

Q13. What is RFID in IoT?

Correct Answer: A

RFID is used for tracking objects.

Q14. What is Zigbee?

Correct Answer: B

Zigbee is used for low-power IoT communication.

Q15. What is Bluetooth used for in IoT?

Correct Answer: B

Bluetooth is used for short-range IoT connectivity.

Q16. What is LoRaWAN?

Correct Answer: B

LoRaWAN is used for long-range IoT communication.

Q17. What is IoT security?

Correct Answer: B

IoT security protects devices and data.

Q18. What is encryption in IoT?

Correct Answer: B

Encryption protects IoT data.

Q19. What is authentication in IoT?

Correct Answer: B

Authentication ensures secure access.

Q20. What is IPv6 role in IoT?

Correct Answer: B

IPv6 supports massive IoT device connections.

Q21. What is smart home system?

Correct Answer: B

Smart homes use IoT for automation.

Q22. What is wearable IoT device?

Correct Answer: B

Wearables collect health and activity data.

Q23. What is IoT data analytics?

Correct Answer: B

Analytics extracts insights from IoT data.

Q24. What is real-time IoT system?

Correct Answer: B

Real-time systems process data immediately.

Q25. What is smart city concept?

Correct Answer: B

Smart cities use IoT for infrastructure management.

Q26. What is M2M communication in IoT?

Correct Answer: B

M2M enables devices to communicate automatically.

Q27. What is IoT firmware?

Correct Answer: B

Firmware controls IoT device hardware.

Q28. What is sensor network in IoT?

Correct Answer: B

Sensor networks collect distributed data.

Q29. What is actuator control in IoT?

Correct Answer: B

Actuators perform actions based on commands.

Q30. What is IoT latency?

Correct Answer: B

Latency is delay in communication.

Q31. What is IoT scalability?

Correct Answer: B

Scalability allows system expansion.

Q32. What is digital dashboard in IoT?

Correct Answer: B

Dashboard shows real-time IoT data.

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