1. What does IoT stand for in technology?
(A) Internet of Telecommunication
(B) Internet of Tasks
(C) Internet of Things
(D) Internet of Technology
2. Which of the following is a key component of IoT architecture?
(A) Data Link Layer
(B) Sensors and Actuators
(C) Control Panel
(D) Hard Disk
3. Which protocol is commonly used in IoT for lightweight messaging?
(A) HTTP
(B) FTP
(C) MQTT
(D) SMTP
4. Which communication technology is commonly used in smart home IoT devices?
(A) USB
(B) VGA
(C) HDMI
(D) Zigbee
5. What type of IP address is most commonly used in IoT?
(A) IPv6
(B) MAC
(C) IPv4
(D) DNS
6. What is a smart thermostat an example of?
(A) Wearable device
(B) Industrial IoT
(C) Smart home device
(D) Vehicle tracking
7. Which of these is an application of IoT in agriculture?
(A) Smart grid
(B) Smart factory
(C) Smart lighting
(D) Precision farming
8. What is the function of actuators in IoT?
(A) Store data
(B) Measure data
(C) Perform actions
(D) Connect to Wi-Fi
9. Which of the following is a wearable IoT device?
(A) Smartwatch
(B) Smart refrigerator
(C) Smart TV
(D) Smart door lock
10. What is the role of edge computing in IoT?
(A) Data transmission
(B) User interface
(C) Cloud storage
(D) Local data processing
11. Which cloud platform offers IoT services?
(A) Microsoft Azure
(B) Adobe Creative Cloud
(C) Dropbox
(D) WhatsApp
12. Which of these can be part of a smart city IoT solution?
(A) Smart plugs
(B) Smart fans
(C) Smart parking
(D) Smart fridge
13. IoT devices usually communicate using which kind of networks?
(A) Satellite TV
(B) Optical drives
(C) LAN cables
(D) Cellular, Wi-Fi, or LPWAN
14. In IoT, what does a gateway do?
(A) Controls smart home lights
(B) Connects devices to the internet
(C) Measures temperature
(D) Sends SMS alerts
15. Which language is widely used in programming IoT devices?
(A) HTML
(B) PHP
(C) Python
(D) SQL
16. What does a smart meter measure?
(A) Electricity or gas usage
(B) Temperature
(C) Internet speed
(D) Car speed
17. What is the benefit of using LPWAN in IoT?
(A) High bandwidth
(B) Shorter range
(C) Low power consumption
(D) High temperature resistance
18. Which of these is a potential risk in IoT networks?
(A) Overheating
(B) Lack of RAM
(C) Security vulnerabilities
(D) Lack of screen
19. What is an example of industrial IoT (IIoT)?
(A) Smart speaker
(B) Smart wristband
(C) Predictive maintenance sensor
(D) Smart bulb
20. What is the main purpose of IoT analytics?
(A) Design interfaces
(B) Analyze and optimize operations
(C) Build apps
(D) Generate audio
21. Which technology allows devices to be embedded with sensors and connectivity?
(A) Microcontrollers
(B) Internet cables
(C) IoT
(D) Circuit boards
22. Which protocol is NOT typically used in IoT?
(A) CoAP
(B) MQTT
(C) HTTP
(D) IMAP
23. What does the term "smart" mean in smart devices?
(A) High speed
(B) High cost
(C) Internet-connected and programmable
(D) Preloaded with videos
24. What is the core idea behind IoT?
(A) Artificial intelligence
(B) Automating user interfaces
(C) Interconnecting everyday objects
(D) Increasing internet speed
25. What kind of device is an Amazon Echo?
(A) Wearable
(B) Smart speaker
(C) Smart fridge
(D) Smart meter
26. What sensor is commonly used in a smart weather station?
(A) Gas sensor
(B) Accelerometer
(C) Humidity sensor
(D) Light sensor
27. Which standard is used for short-range wireless communication in IoT?
(A) Bluetooth
(B) HDMI
(C) SATA
(D) USB
28. What does RFID stand for in IoT context?
(A) Radio Frequency Identification
(B) Remote File Input Device
(C) Random Function Internet Device
(D) Real Frequency Internet Data
29. What is the function of a smart plug?
(A) Speed up internet
(B) Control power supply remotely
(C) Boost battery
(D) Measure weight
30. Which of the following is a potential application of IoT in healthcare?
(A) Smart lamp
(B) Fitness tracker
(C) Smart oven
(D) Smart socket
31. Which one of the following is a popular open-source IoT platform?
(A) Android Studio
(B) Node-RED
(C) Adobe Illustrator
(D) Visual Studio Code
32. What is a disadvantage of using IoT devices?
(A) Faster communication
(B) High energy efficiency
(C) Potential privacy invasion
(D) Cost reduction
33. What is the function of a sensor in IoT?
(A) Store data
(B) Send data packets
(C) Detect physical changes
(D) Charge the device
34. Which type of network does NB-IoT belong to?
(A) Bluetooth
(B) LPWAN
(C) Zigbee
(D) LoRaWAN
35. What is used to uniquely identify IoT devices on a network?
(A) IP address
(B) URL
(C) Protocol
(D) Username
36. What kind of data does a smart fitness band collect?
(A) Financial data
(B) Biometric data
(C) Marketing data
(D) Storage usage
37. Which technology allows machines to communicate without human involvement?
(A) M2M
(B) USB
(C) HTTP
(D) LAN
38. What is the main goal of a smart grid?
(A) High internet speed
(B) Efficient power management
(C) Smart traffic lights
(D) Smart parking
39. What does a gyroscope sensor detect in a smart device?
(A) Temperature
(B) Humidity
(C) Orientation and rotation
(D) Location
40. What is the function of firmware in IoT devices?
(A) Network hosting
(B) UI rendering
(C) Control device hardware
(D) Internet routing
41. Which of these is NOT a common IoT communication protocol?
(A) CoAP
(B) MQTT
(C) SMTP
(D) LoRa
42. What does "interoperability" refer to in IoT?
(A) Battery backup
(B) Device-to-device compatibility
(C) High storage
(D) User interface
43. What kind of IoT system is used for traffic control in cities?
(A) Smart agriculture
(B) Smart transport
(C) Smart kitchen
(D) Smart healthcare
44. What is a drawback of IoT in terms of network?
(A) Large memory
(B) Real-time updates
(C) Network congestion
(D) Inter-device messaging
45. What role does AI play in IoT?
(A) Real-time decision making
(B) Network speed booster
(C) Replacing sensors
(D) Limiting data
46. What is the main characteristic of smart devices?
(A) They are waterproof
(B) They work without internet
(C) They have connectivity and intelligence
(D) They are voice-controlled only
47. What does "context awareness" in IoT mean?
(A) Data syncing
(B) Voice recognition
(C) Software updates
(D) Understanding surroundings and reacting accordingly
48. What is the full form of CoAP?
(A) Control over Application Protocol
(B) Compact Application Port
(C) Constrained Application Protocol
(D) Controlled Access Protocol
49. What is a key driver of IoT growth?
(A) Decreasing battery life
(B) Lower hardware costs
(C) Network delays
(D) Lack of standards
50. Which sector is NOT directly related to IoT implementation?
(A) Fashion shows
(B) Healthcare
(C) Agriculture
(D) Smart homes