O Level IoT Previous Paper Jan 2023 | Nielit IoT M4 R5 O Level Previous Paper - IT Computer Guruji

o level iot previous paper

Nielit IoT M4 R5 O Level Previous Paper Jan 2023


1. टीसीपी का अर्थ है :
1. TCP stands for :

 (A) Transmission Control Protocol
 (B) Telecommunication Control Protocol
 (C) Temperature Control Protocol
 (D) Transmission and Communication Protocol 

Ans:- (A) Transmission Control Protocol   

2. रैम में पूरे प्रोग्राम में उपयोग के लिए किस प्रकार के वेरिएबल्स को बनाए रखा जाता है और प्रोग्राम के निष्पादन के दौरान पुनः आवंटित नहीं किया जाता है?
2. Which type of variables are retained for use throughout the program in RAM and not reallocated during program execution?

 (A) Automatic
 (B) Static
 (C) Dynamic
 (D) All of these

Ans:-  (B) Static  

3. एम्बेडेड डिज़ाइन के दौरान, कौन सा डिज़ाइन हार्डवेयर और सॉफ़्टवेयर दोनों पर विचार करता है?
3. During embedded design, which design considers both hardware and software?

 (A) Memory Design
 (B) Software / hardware Design
 (C) Platform-based Design
 (D) Peripheral Design

Ans:-  (B) Software / hardware Design   

4. एंबेडेड सी प्रोग्रामिंग में प्रीप्रोसेसर डायरेक्टिव के क्या कार्य हैं?
4. What are the functions preprocessor directive in Embedded C programming ?
 
 (A) Tell compiler where to find symbols that are not present in program
 (B) Give compiler instructions to compile the program 
 (C) Define variables 
 (D) Define functions

Ans:- (B) Give compiler instructions to compile the program    

5. श्रीमान राहुल अपने प्रोजेक्ट को पूरा करने और उसे लागू करने के बाद फीडबैक ले रहे हैं। यह अधिनियम दर्शाता है:
5. Mr. Rahul is seeking feedback after completing and implementing his project. This act represents:

 (A) Time-Management 
 (B) Self-Awareness
 (C) Gratitude
 (D) Self-Love

Ans:-  (B) Self-Awareness   

6. Arduino कोड किसे कहते हैं?
6. What are Arduino Codes are referred to ?

 (A) Sketches
 (B) Drawings
 (C) Links
 (D) Notes

Ans:-  (A) Sketches  

7. निम्नलिखित में से कौन सा टाइमर का मूल कार्य है?
7. Which of the following is the basic functions of a timer ?

 (A) Control the compare, capture mode 
 (B) Act as a counter 
 (C) Provided a time delay
 (D) All of these 

Ans:-  (D) All of these  

8. निम्नलिखित में से कौन सा कुछ एक्सेस किए गए संसाधन को अस्वीकार करने से रोकता है?
8. Which of the following is the prevents some from denying the accessed resource ?

 (A) Accounting 
 (B) Non-repudiation
 (C) Sniffing
 (D) Authorization

Ans:-  (B) Non-repudiation   

9. व्यावसायिक पत्र प्रारंभ करने की विनम्र विधि को पहचानें।
9. Identify the polite method of beginning a business letter 

 (A) We are forced to refuse
 (B) We demand to know from you 
 (C) We find it difficult to believe
 (D) We appreciate your prompt reply

Ans:- (D) We appreciate your prompt reply   

10. कंपनी के बारे में शोध और पूछताछ कैसे करें?
10. How to research and enquire about the company ?

 (A) Website
 (B) Company Directories
 (C) Annual Report 
 (D) All of these 

Ans:-  (D) All of these 

11. निम्नलिखित में से कौन एम्बेडेड सी भाषा की प्रॉपर्टी है?
11. Which of the following is the property of embedded C language ?

 (A) Hardware independent
 (B) Used for web applications
 (C) Used with limited resources
 (D) Used for native development

Ans:-  (C) Used with limited resources  

12. ओपन आईओटी आर्किटेक्चर में तत्वों की संख्या कितनी होती है?
12. What is the number of elements in open IoT architecture ?

 (A) Four 
 (B) Five
 (C) Six
 (D) Seven

Ans:-  (D) Seven  

13. IoT डिवाइस में भौतिक दुनिया से डेटा कैप्चर करने के लिए निम्न में से किसका उपयोग किया जाता है?
13. Which of the following is used to capture data from the physical world in IoT device ?

 (A) Sensor 
 (B) Actuators
 (C) Microphone 
 (D) Microcontrollers

Ans:-  (A) Sensor    

14. माइक्रोकंट्रोलर में निम्नलिखित में से कौन सा मौजूद होना चाहिए?
14. Which of the following must be present in a microcontroller ?

 (A) CPU, ROM, I/O ports and timers 
 (B) RAM, ROM, I/O ports and timers
 (C) CPU, RAM, ROM, I/O ports and timers

Ans:-  (C) CPU, RAM, ROM, I/O ports and timers    

15. यदि 1 का अर्थ है किसी वस्तु का पता लगाया गया है और 0 का अर्थ है कि किसी वस्तु का पता नहीं चला है, तो सेंसर स्थिर होने पर, सेंसर द्वारा आउटपुट 111000 के रूप में देखे जाने पर वस्तु की संभावित गति क्या हो सकती है?
15. If 1 means an object is detected and 0 meaning no object is detected, then considering the sensor stationary, what can be the possible movement of object if the output by the sensor is observed as 111000 ?

 (A) Object is stationary
 (B) Object is oscillating side by side
 (C) Object is moving away
 (D) Object is moving closer

Ans:-  (C) Object is moving away    

16. एंबेडेड सिस्टम में किस मेमोरी स्टोरेज का व्यापक रूप से उपयोग किया जाता है?
16. Which memory storage is widely used in Embedded Systems ?

 (A) EEPROM
 (B) DRAM
 (C) Flash Memory
 (D) SRAM

 Ans:-  (B) DRAM     

17. बहुत कम रेंज वाला IoT नेटवर्क है:
17. The IoT networks that has a very short range is:

 (A) WAN
 (B) LAN
 (C) Fox
 (D) Short-range Wireless Network

Ans:-  (D) Short-range Wireless Network    

18. 8051 में RAM मैमोरी का आकार कितना होता है ?
18. What is the size of RAM memory in 8051 ?

 (A) 32 bytes
 (B) 64 bytes
 (C) 128 bytes
 (D) 256 bytes

Ans:-  (C) 128 bytes    

19. मानसिक व्यायाम पर आधारित तनाव प्रबंधन तकनीक जो विश्राम प्रतिक्रिया उत्पन्न करती है:
19. The stress management technique based on mental exercises which to produces the relaxation response:

 (A) Autogenic Technique 
 (B) Eating
 (C) Sleeping
 (D) Medicine intake

Ans:-  (A) Autogenic Technique       

20. संचार का उद्देश्य कर्मचारियों को आधिकारिक रूप से ___________ करने के लिए होता हैं।
20. The purpose of communication in to help official to ___________ the employees.

 (A) Eliminate 
 (B) Motivate
 (C) Threaten
 (D) Apprise

Ans-  (B) Motivate    

21. यह जाँचने की क्या प्रक्रिया है कि पठन के पिछले चरणों का ठीक से पालन किया गया है या नहीं?
21. What is the process to check whether previous stages of reading have been followed properly ?

 (A) Survey 
 (B) Question
 (C) Reading
 (D) Review

Ans:-  (C) Reading     

22. IR सेंसर का क्या उपयोग है?
22. What is the use of the IR Sensor ?
 
 (A) Humidity Detection 
 (B) Image Processing
 (C) Object Detection
 (D) GPS

Ans:-  (C) Object Detection  

23. अधिकांश सेंसर में किस प्रकार का स्थानांतरण कार्य होता है?
23. Most sensors have what type of transfer function ?
 
 (A) Zero                                   
 (B) Infinity 
 (C) Linear 
 (D) Non-linear

Ans:-  (C) Linear   

24. फंक्शन निम्नलिखित में से किस तरीके से सूचना प्रसारित कर सकता है?
24. Functions can pass information in which of the following ways ?
 
 (A) Value 
 (B) reference 
 (C) Stack 
 (D) Both (A) and (B)

Ans:-  (D) Both (A) and (B)    

25. आप Arduino Compiler को कंपाइलेशन रोकने के लिए मजबूर करने के लिए प्रीप्रोसेसर निर्देशों के साथ एक त्रुटि कैसे फेंक सकते हैं?
25. How can you throw an error with preprocessor directives to Arduino Compiler forcing to stop compilation ?

 (A) #warning 
 (B) #stop
 (C) #cut
 (D) #error

Ans:-  (D) #error   

26. LDR संवेदक किसके सिद्धांत पर कार्य करता है।
26. LDR sensor works on the principle of

 (A) Resistivity
 (B) Photoconductivity
 (C) Conductivity
 (D) Both (A) and (B)

Ans:-  (B) Photoconductivity  

27. What is the feeling of competence to cope with life's challenges and of being  worthy of happiness called ?

 (A) Arrogance
 (B) Self-esteem
 (C) Self-efficacy
 (D) Wishful thinking

Ans:-  (B) Self-esteem  

28. What is the efficiency of the DC motor at maximum power ? 

 (A) 90%
 (B) 100%
 (C) Around 80%
 (D) Less than 50%

Ans:-  (D) Less than 50%   

29. Which of the following devices are specifically being used for converting serial to parrallel and from parallel to serial respectively ?

 (A) microcontroller 
 (B) timers 
 (C) counters
 (D) registers

Ans:-  (D) registers  

30. How should the tone of a speaker be like ?

 (A) Loud
 (B) Clear
 (C) Low
 (D) Soft

Ans:-  (B) Clear  

31. What will be the output of the following code ?
    
    #include <stdio.h>

    void solve () {

     char ch[5] = "abcde";

    int ans = 0;

    for(int i = 0; 1< 5; i++) {

    ans += (ch[i] - 'a');

    }

    printf("%d",ans),
    
    }

    int main() {

    solve();

    return (); 
  
    }

 (A) 5
 (B) 20
 (C) 40
 (D) 10

Ans:-  (D) 10    

32. Which of the following helps to collaborate in IoT development ?

 (A) physical computing
 (B) chemical computing
 (C) mechanism
 (D) cloud computing 

Ans:-  (D) cloud computing  

33. The actuators used in IoT applications are :

 (A) Relay
 (B) Servo Motors  
 (C) DC Motors 
 (D) All of these

Ans:- (D) All of these  

34. Which processor helps in the carrying out floating point calculations ?

 (A) microprocessor 
 (B) coprocessor
 (C) microcontroller 
 (D) controller

Ans:-  (B) coprocessor  

35.  The process of assessment of the speaker's content while listing is called __________

 (A) Critical listing 
 (B) Dialogic listing 
 (C) Comprehensive listening
 (D) Systematic listening

Ans:-  (C) Comprehensive listening   

36. What is the outcome of the following Arduino code ?

    void setup () {
    
    Serial.begin(9600)
   
    }
   
    void setup() {

    Serial.write(20);

    }

 (A) Send a signal to pin 20 on the Arduino board 
 (B) Send a octal number of 20 through the Serial pins
 (C) Send a byte with value 20 through the Serial pins
 (D) Send a hexadecimal number of 20 through the Serial pins

Ans:- (C) Send a byte with value 20 through the Serial pins  

37. What language is the Arduino IDE built on ? 

 (A) Java 
 (B) HTML
 (C) C\C++
 (D) Python

Ans:-  (A) Java  

38. In the IoT network, Secure Shell (SSH) is
 
 (A) Gateway 
 (B) Secure network protocol
 (C) Router 
 (D) Firewall

Ans:- (B) Secure network protocol  

39. What are the major categories of communications?

 (A) Speech, writing 
 (B) Printing 
 (C) Electronic communication
 (D) All of these

Ans:-  (D) All of these  

40. Which of the following challenge arises when we use many devices on the same network ?

 (A) Singing 
 (B) Security 
 (C) Power Detection 
 (D) Power Consumption

Ans:-  (D) Power Consumption  

41. What is the of the Interrupt Service Routine in an Arduino ?

 (A) To boot up the Arduino
 (B) To exit any code that is running 
 (C) To automate functions 
 (D) To make more memory 

 Ans:-  (C) To automate functions     

42. How are multiline commands denoted in Embedded C ?

 (A) ##
 (B) /* */
 (C) %%
 (D) //

Ans:- (B)  /* */    

43. Which one is the most discussed challenge in IoT ?

 (A) Standard 
 (B) Security 
 (C) Regulation
 (D) Internet

Ans:-  (B) Security   

44. Reports are usually utilized to present the outcome of :

 (A) Experiment 
 (B) Inquiry 
 (C) Investigation
 (D) All of these

Ans:-  (D) All of these   


45. In IoT Transport layer set up connections without handshakes / acknowledgements using :

 (A) UDP
 (B) TCP
 (C) ETP
 (D) HTTP

Ans:-  (A) UDP   

46. _________is heart of Computer system.

 (A) Memory
 (B) I/O
 (C) Counter
 (D) Processor

Ans:-  (D) Processor   

47. What is the resolution of the micros () function on the Arduino Nano ?

 (A) 7 Microseconds
 (B) 4 Microseconds
 (C) 6 Microseconds 
 (D) 2 Microseconds

Ans:-  (B) 4 Microseconds  

48. These applications take data or input from various device and convert it into viable actions or clear patterns for human analysis ___________.

 (A) Real Time Analysis
 (B) Data Collection
 (C) Device Integration
 (D) Real Time Collection

Ans:-  (A) Real Time Analysis   

49. Sensor effectiveness depends on which of the following parameters ?

 (A) Radiation 
 (B) Resistivity
 (C) Sensitivity
 (D) All of the above

Ans:-  (C) Sensitivity  

50. How many analog pins are used on Arduinos Mega board ?

 (A) 12
 (B) 16
 (C) 8
 (D) 14

Ans:-  (B) 16   

51. What is the real example of a smart grid device in IoT ?

 (A) Mobile phone
 (B) Television
 (C) Smart Speaker 
 (D) Smart Meters

Ans:-  (D) Smart Meters  

52. Which of the following is NOT a data type ?

 (A) sbit
 (B) dbit
 (C) bit
 (D) unsigned int

Ans:-  (B) dbit  

53. Major Component of IoT is/are ___________.

 (A) Sensors
 (B) Actuators
 (C) Smart Applications
 (D) All of the above

Ans:-  (D) All of the above   

54. What is the effect of performing AND operation of R with 0xFE ?

 (A) Setting a selected bit of R
 (B) Clearing a selected bit of R
 (C) Complement selected bit of R
 (D) None of these

Ans:-   

55. ______ is meant for a specific group of people while __________ may be aimed for the general public.

 (A) circular, notice 
 (B) notice, memo
 (C) notice, circular
 (D) memo, circular

Ans:-  (A) circular, notice  

56. Which of the following of the key to an effective presentation ?

 (A) Image
 (B) Styles
 (C) Limited words and key phrases
 (D) Layouts

Ans:-  (C) Limited words and key phrases  

57. What is the correct execution process of an Arduino code ?

 (A) Preprocessor->Editor->Complier
 (B) Editor->Preprocessor->Compiler
 (C) Complier->Preprocessor->Editor
 (D) Editor->Complier->Preprocessor

Ans:-  (B) Editor->Preprocessor->Compiler  

58. The scope that hacker can use to break into a system is called as:

 (A) Attack surface
 (B) Defense
 (C) Principle of least privilege
 (D) Risk mitigation

Ans:- (A) Attack surface  

59. How many times does the setup() function run on every startup of the Arduino System

 (A) 4
 (B) 5
 (C) 2
 (D) 1

Ans:-  (D) 1   

60. Which of these does not enhance listening skills ?

 (A) Attention
 (B) Clear perception
 (C) Frankness
 (D) Ignoring

Ans:-  (C) Frankness  

61. While presenting using projectors information line can be revealed by using an ________ sheet to over the _________ .

 (A) Transparent, slide 
 (B) Translucent, transparency
 (C) Opaque, flip chart
 (D) Opaque, transparency

Ans:-  (D) Opaque, transparency   

62. MQ-135 is a type of __________

 (A) Humidity sensor 
 (B) Gas sensor
 (C) Light sensor
 (D) Temperature sensor

Ans:-  (B) Gas sensor   

63. __________allow data processing close to device. 

 (A) Edge Computing
 (B) Cloud Computing
 (C) Fog Computing
 (D) Grid Computing

Ans:-  (A) Edge Computing  

64. Which of the following process is used to keep track of user's activity

 (A) Authentication 
 (B) Authoring
 (C) Authorization
 (D) Accounting

Ans:-  (D) Accounting  

65. The main objective of WoT (Web of Things) is ___________ .

 (A) Improve usability and interoperability
 (B) Reduce the security
 (C) Complicate the development
 (D) Increase the cost

Ans:-  (A) Improve usability and interoperability  

66. Which of the following method is better for task swapping in the embedded systems ?

 (A) time slice
 (B) RMS
 (C) cooperative multitasking
 (D) pre-emptive

Ans:-  (D) pre-emptive  

67. IoT and cloud computing has what kind of relationship ?

 (A) Physical
 (B) Complementary
 (C) Graphical
 (D) Coding

Ans:-  (B) Complementary  

68. How are comments denoted in Embedded C ?

 (A) #
 (B) %
 (C) ;
 (D) //

Ans:-   (D) //  

69. What is Arduino ?

 (A) Programming Language
 (B) Image editing
 (C) Open-source electronics platform
 (D) Text Editor

Ans:-  (C) Open-source electronics platform   

70. Which rule is used to decide the direction of rotation of DC motor ?

 (A) Coulomb's Law
 (B) Lenz's Law
 (C) Fleming's Right-hand Rule
 (D) Fleming's Left-hand Rule

Ans:-  (D) Fleming's Left-hand Rule  

71. A good presenter and communication should :

 (A) Follow good sequencing of ideas
 (B) Manage time properly
 (C) Clear doubts
 (D) All of these

Ans:-  (D) All of these  

72. Which of the following is an established set of rules that determines how data is transmitted between different device in the same network ?

 (A) Network connection 
 (B) TCP IP Protocol
 (C) Network protocol
 (D) TCP protocol

Ans:-  (C) Network protocol   

73. Predict the output of the following code if the object is moving away from the sensor :
   
    int op =7;
    int isBarrier = HIGH;
    void setup () {
    pinMode(op, INPUT);
    Serial.begain(9600);
    }
    void loop() {
    isBarrier = digitalRead(op);
    if (isBarrier == LOW) {
    Serial.println("1+");
    }
    delay (100);
    }

 (A) clear+clear+1+1
 (B) 1+1+clear+clear
 (C) clear+clear+clear+clear
 (D) 1+!+clear+1

Ans:-  (B) 1+1+clear+clear  

74. What type of speaker looks into the eyes of the audience ?

 (A) Confident
 (B) Impatient
 (C) Rude
 (D) Impolite

Ans:-  (A) Confident  

75. What will be the output of the following Arduino code ?
   
    void main () {
    int k =0;
    double d = 10.21;
    printf("%lu", sizeof(k+d));
    }
    void loop() {}

 (A) 10.21
 (B) 8
 (C) null
 (D) 23

Ans:-  (B) 8   

76. HC-05 is a Bluetooth module that can communication in which mode ?

 (A) Simplex
 (B) Duplex
 (C) Full-Duplex
 (D) None of these

Ans:- (D) None of these  

77. Embedded C is:

 (A) A subset of traditional C
 (B) An extension of traditional C
 (C) A superset of traditional C
 (D) Same as traditional C

Ans:-  (B) An extension of traditional C   

78. Which of these may convey arrogance ?

 (A) Shoulder shrug
 (B) Jointed fingertips
 (C) Hands swinging loosely
 (D) Pointed finger

Ans:-  (B) Jointed fingertips  

79. How power supply is done to Raspberry PI ?

 (A) USB connection
 (B) Internal battery
 (C) Charger
 (D) Adapter

Ans:-  (A) USB connection   

80. The process of removing certain band of frequencies from a signal while permitting other os called as ___________ .

 (A) Attenuation
 (B) Distortion
 (C) Filtering
 (D) None of these

Ans:-  (C) Filtering  

81. Using lecturers and handouts, information is acquired via _______ whereas by using tutorials and conversations, information is acquired through _______

 (A) Students, tutors
 (B) Other sources tutors
 (C) Tutors, fellow learners
 (D) None of the above

Ans:-  (B) Other sources tutors  

82. Which one is not Leading Cloud Service for IoT Deployments ?

 (A) AWS
 (B) IBM
 (C) Microsoft Azure
 (D) Google Drive

Ans:-  (D) Google Drive  

83. A set of homogenous data stored in consecutive memory location is called :

 (A) List
 (B) Structure
 (C) Array
 (D) Union

Ans:-  (C) Array  

84. What type of signal does the analog Write() function output ?

 (A) Pulse Code Modulated Signal
 (B) Frequency Modulated Signal
 (C) Pulse Width Modulated Signal
 (D) Pulse Amplitude Modulated Signal

Ans:- (C) Pulse Width Modulated Signal   

85. What is the bit size used in 8051 ?

 (A) 4-bit
 (B) 8-bit
 (C) 16-bit
 (D) 32-bit

Ans:- (B) 8-bit  

86. Which one is not a control structure ?

 (A) While 
 (B) If-else
 (C) #define
 (D) Case

Ans:-  (C) #define  

87. Which of the following is used to upload the Arduino Sketches to the board ?

 (A) avrgcc 
 (B) g++
 (C) cpython
 (D) avrdude

Ans:-  (D) avrdude   

88. What will be the output the following code ?

    #include <stdio.h>
   
    void solve() {

    int b = 4;

    int res = b++ + ++b + ++b;

    printf("%d", res);

    }
    
    int main() {

    solve();

    return ();
 
    }

 (A) 12
 (B) 15
 (C) 17
 (D) 20

Ans:-  17  

89. Spring Boot Actuator exposes operational information about running application using ___________ endpoints.

 (A) TCP
 (B) HTTP
 (C) IP 
 (D) FTP

Ans:-  (B) HTTP  

90. IoT device can easily lead to catastrophe without __________

 (A) Software 
 (B) Devices
 (C) Cloud
 (D) Management system

Ans:-  (D) Management system  

91. ________ is a combination of hardware and software to perform a specific task.

 (A) Iot System
 (B) Embedded System 
 (C) Grid System
 (D) Cloud System

Ans:-  (B) Embedded System  

92. Which one of these is not threat modelling methodology ?

 (A) NANO
 (B) STRIDE
 (C) OCTAVE
 (D) PASTA

Ans:-  (A) NANO  

93. An IoT network is a collection of ________ devices.

 (A) Signal
 (B) Machine to machine
 (C) Interconnected
 (D) Network

Ans:-  (C) Interconnected  

94. The Atmega 168 is an _________ bit chip .

 (A) 32
 (B) 64
 (C) 8
 (D) 16

Ans:-  (C) 8   

95. What is the output of the following program ?

    for(;;)

    {

    Statement

    }

 (A) Error
 (B) Statement
 (C) This an infinite loop
 (D) Both (B) and (C)

Ans:-  (A) Error   

96. What is the objective of the code given below if it is executed on the Arduino Uno ?
    
    #include<EEPROM.H>
    int pin =13;
    void setup() {
    pinMode(pin,OUTPUT);
    Serial.begin(9600);
    }
    void loop() {
    for(int i+0; i<EEPROM:length(); i++) {
    EEPROM write(i.1);
    }
    digitalWrite(pin,HIGH);
    exit(0);
    }

 (A) Clear EEPROM
 (B) Fill EEPROM with 1's
 (C) Export EEPROM data
 (D) Fill EEPROM with 0's

Ans:-  (B) Fill EEPROM with 1's  

97. What indicates to the reader the purpose of a letter ?

 (A) Subject
 (B) Body
 (C) Address
 (D) Salutation

Ans:-  (A) Subject  

98. Predict the output of the following code if the object is moving towards the sensor.

    int op = 6;
    int isBarrier = HIGH;
    void setup() {
    pinMode(op, INPUT);
    Serial.begin(9600);
    }
    void loop() {
    isBarrier =digitalRead(op);
    if (isBarrier == LOW) {
    Serial.println('clear=');
    }
    else {
    Serial.print('clear+');
    }
    delay (100);
    }

 (A) clear+clear+1+1
 (B) 1+1+clear+1
 (C) 1+1+clear+clear
 (D) clear+clear+clear+clear

Ans:-  (A) clear+clear+1+1  

99. Which of the following is false about IoT devices ?

 (A) Use internet for collecting and sharing data
 (B) Need microcontrollers
 (C) Use wireless technology
 (D) Are completely safe

Ans:-  (D) Are completely safe   

100. The advantage of using functions is _________

 (A) Partition larger task into smaller tasks
 (B) Code reusability
 (C) Manage complexity
 (D) All of these

Ans:-  (D) All of these   


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