By Ankit Sir
1. IoT ka full form kya hai?
A) Internet of Technology
B) Internet of Things
C) Integration of Things
D) Internet of Tools
Correct: B
2. IoT devices me kaun sa layer sabse bottom par hota hai?
A) Application Layer
B) Network Layer
C) Perception / Sensor Layer
D) Middleware Layer
Correct: C
3. MQTT protocol IoT me kis ke liye use hota hai?
A) Data Storage
B) Lightweight Messaging
C) File Transfer
D) Video Streaming
Correct: B
4. Arduino me analog pins kitne hote hain?
A) 6
B) 14
C) 20
D) 8
Correct: A
5. IoT me Edge Computing ka matlab kya hai?
A) Cloud me processing
B) Device ke paas processing
C) Database storage
D) Network routing
Correct: B
6. ZigBee protocol kaun sa band use karta hai?
A) 2.4 GHz
B) 5 GHz
C) 900 MHz
D) Both A & C
Correct: A
7. Raspberry Pi me GPIO pins kitne hote hain?
A) 26
B) 40
C) 17
D) 8
Correct: B
8. IoT security me Encryption ka purpose kya hai?
A) Data readable banana
B) Data unreadable banana
C) Speed badhana
D) Memory save karna
Correct: B
9. Kaun sa IoT application nahi hai?
A) Smart Home
B) Wearable Devices
C) Traditional Desktop PC
D) Smart City
Correct: C
10. CoAP protocol ka full form kya hai?
A) Constrained Application Protocol
B) Common Application Protocol
C) Connected Application Protocol
D) Control Application Protocol
Correct: A
11. ESP8266 microcontroller ka main feature kya hai?
A) Built-in WiFi
B) Bluetooth
C) Ethernet
D) GSM
Correct: A
12. IoT me Actuator kya hota hai?
A) Input device
B) Output device
C) Storage device
D) Processing unit
Correct: B
13. Kaun sa sensor temperature measure karta hai?
A) DHT11
B) Ultrasonic
C) PIR
D) LDR
Correct: A
14. IPv6 IoT ke liye kyun zaroori hai?
A) Limited addresses
B) Almost unlimited addresses
C) Speed
D) Security
Correct: B
15. Node-RED IoT me kis liye use hota hai?
A) Programming
B) Visual / Flow-based programming
C) Database
D) Hardware design
Correct: B
16. LoRaWAN ka full form kya hai?
A) Long Range Wide Area Network
B) Low Range Wireless Area Network
C) Long Range Wireless Access Network
D) Local Range Wide Area Network
Correct: A
17. IoT Gateway ka main function kya hota hai?
A) Data collection
B) Protocol translation
C) Power supply
D) Display
Correct: B
18. Kaun sa open-source IoT platform hai?
A) ThingsBoard
B) AWS IoT
C) Azure IoT
D) Google Cloud IoT
Correct: A
19. Ultrasonic sensor distance measure kis se karta hai?
A) IR waves
B) Sound waves
C) Light
D) Magnetic field
Correct: B
20. IoT me Middleware ka role kya hai?
A) Hardware control
B) Data processing & communication
C) User interface
D) Power management
Correct: B
21. BLE ka full form kya hai?
A) Bluetooth Low Energy
B) Basic Link Establishment
C) Broadband Low Energy
D) Bluetooth Long Energy
Correct: A
22. Smart Meter ka use kis liye hota hai?
A) Electricity / Water usage
B) Temperature
C) Speed
D) Pressure
Correct: A
23. REST API IoT me kyun popular hai?
A) Complex
B) Simple & lightweight
C) Slow
D) Expensive
Correct: B
24. Kaun sa cloud IoT service nahi hai?
A) AWS IoT Core
B) Microsoft Azure IoT
C) Arduino IDE
D) Google Cloud IoT
Correct: C
25. PIR sensor kya detect karta hai?
A) Motion
B) Temperature
C) Light
D) Sound
Correct: A
26. AMQP ka full form kya hai?
A) Advanced Message Queuing Protocol
B) Active Message Queue Protocol
C) Application Message Protocol
D) Advanced Mail Queue Protocol
Correct: A
27. IoT me Firmware kya hota hai?
A) OS
B) Hardware-software embedded code
C) Application
D) Database
Correct: B
28. NB-IoT ka main advantage kya hai?
A) High speed
B) Low power wide area
C) Short range
D) High cost
Correct: B
29. IoT ke liye best database kaun sa hai?
A) MySQL
B) MongoDB / Time-Series DB
C) Oracle
D) MS Access
Correct: B
30. XBee modules kis technology par based hote hain?
A) WiFi
B) ZigBee
C) Bluetooth
D) NFC
Correct: B
41. OPC UA Industrial IoT me kis liye use hota hai?
A) Communication standard
B) Database
C) Hardware protocol
D) OS
Correct: A
42. Kaun sa gas sensor CO₂ detect karta hai?
A) MQ-135
B) MQ-2
C) MQ-3
D) MQ-7
Correct: A
43. WebSocket IoT me bidirectional communication ke liye hota hai?
A) Yes
B) No
C) Only server to client
D) Only client to server
Correct: A
44. Sigfox technology ka range kya hota hai?
A) 10–50 km (urban)
B) 100 m
C) 1 km
D) 500 m
Correct: A
45. Kaun sa IoT communication protocol nahi hai?
A) Modbus
B) FTP
C) CoAP
D) MQTT
Correct: B
46. Flex sensor kya measure karta hai?
A) Bend / Strain
B) Pressure
C) Temperature
D) Humidity
Correct: A
47. AWS IoT me Shadow ka matlab kya hai?
A) Device state management
B) Physical shadow
C) Database table
D) Security feature
Correct: A
48. Z-Wave kis frequency band me kaam karta hai?
A) Sub-1 GHz
B) 2.4 GHz
C) 5 GHz
D) 900 MHz only
Correct: A
49. Insteon technology kya combine karti hai?
A) Power line + RF
B) WiFi + Bluetooth
C) ZigBee + Z-Wave
D) Only RF
Correct: A
50. Battery operated IoT sensor ke liye kaun sa best hai?
A) ESP32 (WiFi)
B) ESP8266
C) nRF52832 (BLE)
D) Arduino Uno
Correct: C
Prepared By Ankit Sir | IoT MCQ Practice