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O Level Previous Year Question’s Solution (Aug-2022) – Internet of Things

Hello everyone🙏, Today, we’re going to give you the answers to the August O Level Previous Year Questions for the Internet of Things. I hope that session is enjoyable for you and that it will be beneficial for your exams. ❤️Please feel free to contact us if you have any questions. Message us.

Important Questions- O Level NIELIT | Internet of Things :

1.  What are three R’s in SQ3R reading comprehension method?

  • (A)  Read, Recite and Review
  • (B)  Read, Remember and Review
  • (C)  Read, Recite and Recall
  • (D)  Read, Recite and Retain

2.  The statement that are TRUE about ‘Arduino.h’ header file are:

(A)  Avrdude software uploads the hex file

(B)  Gives access to all of Arduino’s core functionally

(C)  #include <Arduino.h>

(D)  All of these

Ans. (D)

3.  The enduring feature that describes an individual’s behavior and attitude is called ________ .

  • (A)  Education
  • (B)  Personality Traits
  • (C)  Financial Status
  • (D)  Job Profile

4.  Keyboard pins while interfacing can cause interrupt called as:

  • (A)  Timer Interrupt
  • (B)  Software Interrupt
  • (C)  External Hardware Interrupt
  • (D)  Interfacing Interrupt

5.  The output of given C code is:


      Int main ()


      Int x=1, y=1, z;

     Z= x++ +y;

     Print (“%d, %d”, x, y);


  • (A)  x=1, y=1
  • (B)  x=2, y=1
  • (C)  x=1, y=2
  • (D)  x=2, y=2

6.  The major characteristics on which OSI and TCP/IP model differs:

  • (A)  OSI model is independent generic protocol & TCP/IP is communication protocol
  • (B)  Inn OSI model, Transport layer guarantees the delivery
  • (C)  (A) and (B)
  • (D)  TCP/IP model consists of 7 layer

7.  Reading is an art to bring in knowledge. It basically_________ .

  • (A)  Encodes
  • (B)  Translates
  • (C)  Decode
  • (D)  None of these

8.  The examples of Open-loop system in control system are:

  • (A)  Traffic Light, Toaster
  • (B)  Traffic Light, Temperature Controller
  • (C)  Traffic, Automatic washing machine
  • (D)  All of these

9.  IR Sensor are used in:

  • (A)  GPS Tracking
  • (B)  Moisture sensing
  • (C)  Object detection
  • (D)  Analog signals

10. Which is not the synonym of memo?

  • (A)  Circular
  • (B)  Memorandum
  • (C)  Message
  • (D)  Minute

11. What is the basic function of the spring in a control valve?

  • (A)  Characterize flow
  • (B)  Oppose the diaphragm to position the valve according to signal pressure
  • (C)  Close the valve if air failure occurs
  • (D)  Open the valve if air failure occurs

12. The wireless network types that promote IoT deployment in industries are:

  • (A)  Cellular (2G-5G) network protocol
  • (B)  Bluetooth
  • (C)  Near-field communication
  • (D)  All of these

13. IoT enabled technologies include following:

  • (A)  Security Protocol
  • (B)  Wireless Sensor Networks
  • (C)  Cloud Computing
  • (D)  All of these

14. UART stands for:

  • (A)  Universal Asymmertrical Radio Telecasting
  • (B)  Universal Asymmertrical Radio Transmitter
  • (C)  Universal Asynchronous Receiver/Transmitter
  • (D)  Universal Asynchronous Radio Transmitter

15. the speed of DC motor is controlled by Aruino using ___________.

  • (A)  PCM
  • (B)  PPM
  • (C)  PWM
  • (D)  QAM

16. In embedded C, Literals means:

  • (A) a word
  • (B)  a letter
  • (C)  a digit
  • (D)  a string constant

17. Which of the following operators isn’t a bitwise operator?

  • (A)  *
  • (B)  &&
  • (C)  ||
  • (D)  <<

18. What is true about sending and receiving the Serial TTL Signals:

  • (A)  At least one serial port is there
  • (B)  Communicates on digital input, 0(Rx) and 1(Tx)
  • (C)  UART or USART
  • (D)  All of these

19. MQ135 Sensor is:

  • (A)  AI detector
  • (B)  Gas Sensor
  • (C)  Monitors Air Pollution
  • (D) (B) and (C)

20. The language of memos should be ________ and _________ to understand

  • (A)  Indirect, personal
  • (B)  Direct, concise
  • (C)  Lucid, easy
  • (D)  Concise, difficult

21. The essential feature/features of an email as communication medium is/are:

  • (A)  Automatic filing
  • (B)  Facility to send copies of message
  • (C)  Automatic retrieval
  • (D)  All of these

22. An IoT device connects with other interfaces using connections which are:

  • (A)  wired
  • (B)  wired and wireless
  • (C)  wireless
  • (D)  None of these

23. Which of the following operators have the highest precedence?

  • (A)  ==and! =
  • (B)  Logical
  • (C)  Relational
  • (D)  Arithmetic

24. The IoT temperature monitoring is related to:

  • (A)  Analog to Digital conversion
  • (B)  Save time
  • (C)  Real Time system
  • (D)  All of these

25. The role of pubic cloud computing in the IoT architecture is:

  • (A)  Need for on-premises hosting
  • (B)  Remote processing power
  • (C)  Enhanced inter-device communication
  • (D)  Both (B) and (C)

All remaining questions are attached in PDF. Look into the PDF

Important O Level links – NIELIT

NameOfficial Links
Download Admin Card:Admin Card
Syllabus:Download Syllabus
Official Website:Website
O Level CertificationWebsite

Important Questions Paper For O LEVEL

NameOfficial Links
Important for Web DesigningTop Important Question
Important For INTERNET OF THINGSTop Important Question

Previous Year Question Paper – O Level NIELIT

NameOfficial Links
Internet of ThingsInternet-of-Things

What is ‘O’ Level:

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Internet of Things PDF:

Pdf for ‘O’ Level Previous Year Question’s Solution (Aug-2022) – Internet of Things

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Is O Level worth it?

 Candidates who have successfully achieved the NIELIT ‘O’ Level certification are eligible for employment prospects in both the Central Government and the State Government. It is advantageous to obtain employment in government areas focused on computer applications through an O Level qualification. Candidates who have obtained O-level certification are paid an average of Rs. 20 lakhs

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