Internet of Things MCQS

#1. What is the purpose of a Power Supply Unit (PSU) in an IoT device?

To provide electrical power to the device

To process data

To collect data from the environment

To display information

To store data

#2. Which IoT protocol is designed for efficient and secure communication in industrial automation applications?

OPC UA (Unified Architecture)

BACnet

Modbus

DNP3 (Distributed Network Protocol 3)

EtherNet/IP

#3. What is the main function of an EEPROM (Electrically Erasable Programmable Read-Only Memory) in an IoT device?

To store non-volatile data

To process data

To display information

To collect data from the environment

To provide power

#4. In IoT, what is the purpose of a Real-Time Clock (RTC) module?

To keep track of time even when the device is powered off

To process data

To display information

To store data

To collect data from the environment

#5. Which of the following is an example of an IoT application in energy management?

Smart grid management

Cooking

Social networking

Music production

Interior decoration

#6. What is the primary function of an EEPROM (Electrically Erasable Programmable Read-Only Memory) in an IoT device?

To store non-volatile data

To process data

To display information

To collect data from the environment

To provide power

#7. Which IoT protocol is commonly used for communication between sensors and actuators in industrial automation systems?

Modbus

OPC UA (Unified Architecture)

BACnet

DNP3 (Distributed Network Protocol 3)

EtherNet/IP

#8. What does the term “Digital Thread” refer to in IoT?

A digital representation of a physical object's lifecycle

To store data

To process data

To display information

To provide power

#9. Which wireless technology is commonly used for long-range communication in IoT applications?

LoRa

Zigbee

Bluetooth

Wi-Fi

NFC (Near Field Communication)

#10. What is the primary function of a BLE (Bluetooth Low Energy) module in an IoT device?

Low-power wireless communication

To store data

To process data

To display information

To collect data from the environment

#11. Which IoT protocol is commonly used for communication between devices in a building automation system?

BACnet

OPC UA (Unified Architecture)

Modbus

DNP3 (Distributed Network Protocol 3)

EtherNet/IP

#12. What is the main purpose of a Hall Effect sensor in an IoT device?

To measure magnetic fields

To process data

To display information

To collect data from the environment

To provide power

#13. Which of the following is an example of an IoT application in smart agriculture?

Crop monitoring

Cooking

Social networking

Music production

Interior decoration

#14. What is the purpose of a watchdog timer in an IoT device?

To reset the device in case of a malfunction

To process data

To display information

To store data

To collect data from the environment

#15. In IoT, what is the purpose of a Reed Switch sensor?

To detect the presence of a magnetic field

To process data

To display information

To store data

To provide power

#16. Which IoT communication protocol is designed for communication between constrained IoT devices and constrained nodes in low-power networks?

CoAP

MQTT

HTTP

LoRa

Zigbee

#17. What is the main function of a LDR (Light-Dependent Resistor) in an IoT device?

To detect light levels

To process data

To display information

To collect data from the environment

To provide power

#18. Which of the following is an example of an IoT application in asset tracking?

GPS tracking

Cooking

Social networking

Music production

Interior decoration

#19. What is the primary function of a relay module in an IoT device?

To control high-power devices

To process data

To display information

To store data

To provide power

#20. Which IoT communication protocol is commonly used for secure and reliable communication in industrial automation systems?

Modbus

OPC UA (Unified Architecture)

BACnet

DNP3 (Distributed Network Protocol 3)

EtherNet/IP

#1. What is the purpose of a Power Supply Unit (PSU) in an IoT device?

#2. Which IoT protocol is designed for efficient and secure communication in industrial automation applications?

#3. What is the main function of an EEPROM (Electrically Erasable Programmable Read-Only Memory) in an IoT device?

#4. In IoT, what is the purpose of a Real-Time Clock (RTC) module?

#5. Which of the following is an example of an IoT application in energy management?

#6. What is the primary function of an EEPROM (Electrically Erasable Programmable Read-Only Memory) in an IoT device?

#7. Which IoT protocol is commonly used for communication between sensors and actuators in industrial automation systems?

#8. What does the term “Digital Thread” refer to in IoT?

#9. Which wireless technology is commonly used for long-range communication in IoT applications?

#10. What is the primary function of a BLE (Bluetooth Low Energy) module in an IoT device?

#11. Which IoT protocol is commonly used for communication between devices in a building automation system?

#12. What is the main purpose of a Hall Effect sensor in an IoT device?

#13. Which of the following is an example of an IoT application in smart agriculture?

#14. What is the purpose of a watchdog timer in an IoT device?

#15. In IoT, what is the purpose of a Reed Switch sensor?

#16. Which IoT communication protocol is designed for communication between constrained IoT devices and constrained nodes in low-power networks?

#17. What is the main function of a LDR (Light-Dependent Resistor) in an IoT device?

#18. Which of the following is an example of an IoT application in asset tracking?

#19. What is the primary function of a relay module in an IoT device?

#20. Which IoT communication protocol is commonly used for secure and reliable communication in industrial automation systems?

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