#### Plus One Public Exam March 2019 One Mark Question Paper

11th Standard

Reg.No. :
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Computer Science

Time : 01:00:00 Hrs
Total Marks : 100
100 x 1 = 100
1. Identify the output device _____

(a)

Keyboard

(b)

Memory

(c)

Monitor

(d)

Mouse

2. Identify the input device _____

(a)

Printer

(b)

Mouse

(c)

Plotter

(d)

Projector

3. Which is the combination of hardware and software?

(a)

Programs

(b)

Computer

(c)

Data

(d)

Information

4. Which unit does the processing of data?

(a)

CPU

(b)

Registers

(c)

Input unit

(d)

Output unit

5. Which of the following is the heart of the computer?

(a)

CPU

(b)

HDD

(c)

SDD

(d)

ANN

6. The expansion of LCD is _____

(a)

Liquid Cathode Diodes

(b)

Liquid Cluster Display

(c)

Liquid Crytal Display

(d)

Live Extract Display

7. Which refers to the number of bits processed by a computer's CPU?

(a)

Byte

(b)

Nibble

(c)

Word length

(d)

Bit

8. How many characters can be handled in Binary Coded Decimal System?

(a)

64

(b)

255

(c)

256

(d)

128

9. Which is a basic electronic circuit which operates on one or more signals?

(a)

Boolean algebra

(b)

Gate

(c)

Fundamental gates

(d)

Derived gates

10. "75% of Men likes cricket" is............

(a)

Information

(b)

data

(c)

knowledgeRecord

(d)

Record

11. The 4 bit binary equivalent of -5 is......

(a)

1101

(b)

0101

(c)

1100

(d)

-101

12. Which term refers to a part which together with another makes up a whole?

(a)

Signed

(b)

Unsigned

(c)

Complement

(d)

Uncomplement

13. Which of the following programs uses ASCII Code?

(a)

Only C

(b)

only  C++

(c)

Both C, C++

(d)

Java

14. Binary Multiplication in possible with........

(a)

0 and 1

(b)

0 and 0

(c)

1 and 1

(d)

All the above

15. Which is the fastest memory?

(a)

Hard disk

(b)

Main memory

(c)

Cache memory

(d)

Blue-Ray disc

16. How many memory locations ate identified by a processor with 8 bits address bus at a time?

(a)

28

(b)

1024

(c)

256

(d)

8000

17. What is the smallest size of data represented in a CD?

(a)

blocks

(b)

sectors

(c)

pits

(d)

tracks

18. Display devices are connected to the computer through __________

(a)

USB port

(b)

Ps/2 port

(c)

SCSI port

(d)

VGA connector

19. Which of the following is an integrated circuit?

(a)

Personal computers

(b)

Microprocessors

(c)

INTEL

(d)

Transistors

20. Which of the following process computer instructions?

(a)

ALU

(b)

Control Unit

(c)

Register

(d)

Microprocessor

21. How many types of operations carried out of instruction set?

(a)

5

(b)

4

(c)

3

(d)

2

22. The first commercial microprocessor is a ..........bit processor.

(a)

8

(b)

16

(c)

4

(d)

2

23. Which of the following transfer data up to 5 Gigabyte / second?

(a)

USB 1.0

(b)

USB 2.0

(c)

USB 3.0

(d)

USB 1.2

24. How the CD data is represented?

(a)

Pits

(b)

Tracks

(c)

Lands

(d)

Rings

25. Operating system is a_____.

(a)

Application Software

(b)

Hardware

(c)

System Software

(d)

Component

26. File Management manages_______

(a)

Files

(b)

Folders

(c)

Directory systems

(d)

All the Above

27. Which of the following operating system are not in mobile phones?

(a)

Symbian

(b)

Linux

(c)

Apple iOS

(d)

28. Which of the following is a concept of having more than one operating system on single PC?

(a)

Multiuser

(b)

(c)

Multiprocessor

(d)

Virtual

29. Which one of the following is not an algorithm.

(a)

NTFS

(b)

FIFO

(c)

SJE

(d)

Round Robin

30. From the options given below, choose the operations managed by the operating system.

(a)

Memory

(b)

Processes

(c)

Disks and I/O devices

(d)

all of the above

31. Which is the default folder for many Windows Applications to save your file?

(a)

My Document

(b)

My Pictures

(c)

Documents and Settings

(d)

My Computer

32. Which of the following OS is not based on Linux?

(a)

Ubuntu

(b)

Redhat

(c)

CentOs

(d)

BSD

33. Which command is used to cut file or folder?

(a)

File ⟶ Cut

(b)

Edit ⟶ Cut

(c)

Edit ⟶ Move

(d)

Format ⟶ Cut

34. The shortcut key is used to paste the cutted file or folder is _____

(a)

Ctrl + V

(b)

Ctrl + P

(c)

Alt + P

(d)

Shift + V

35. Which are the symbols seen while collapsing and expanding the folder list in Windows explorer?

(a)

*,?

(b)

@,?

(c)

+,-

(d)

*,-

36. Which program or software is available free of charge?

(a)

Open source

(b)

Closed source

(c)

Shareware

(d)

none of these

37. Match the following.

 (i) Tablet OS (1) Linux (ii) Desktop OS (2) Android (iii) Smart phone OS (3) ios (iv) OS used in super computer (4) Windows 7
(a)

1,4,3,2

(b)

1,2,4,3

(c)

4,3,1,2

(d)

3,4,2,1

38. The most common way of opening a file or a Folder is to __________________click on it.

(a)

left

(b)

right

(c)

double

(d)

single

39. Ensuring the input-output relation is

(a)

the responsibility of the algorithm ana the right of the' user.

(b)

the responsibility of the user and the right of the algorithm.

(c)

the responsibility of the algorithm but not the right of the user.

(d)

the responsibility of both the user and the algorithm.

40. Which is intended to solve a problem?

(a)

Program

(b)

Statements

(c)

Process

(d)

algorithm

41. Which defines the rights and responsibilities of the algorithm?

(a)

Abstraction

(b)

Composition

(c)

Specification

(d)

None of these

42. Which is the most effective tool used for manging program complexity

(a)

Specification

(b)

Control flow

(c)

Composition

(d)

none of these

43. Which of the following is (are) a control flow statements?

(a)

Sequential

(b)

Alternative

(c)

Iterative

(d)

All of these

44. Which of the following is an iterative statement?

(a)

If  C
S

(b)

While C
S

(c)

--P
S1
--Q

(d)

both (a) and (b)

45. Testing a loop condition and executing the loop body once is called _________

(a)

alternative

(b)

sequence

(c)

condition

(d)

iteration

46. Suppose u, v = 10, 5 before the assignment. What are the values of u and v after the sequence of assignments?
1 u :=v
2 v := u

(a)

u, v = 5,5

(b)

u, v = 5 ,10

(c)

u, v = 10,5

(d)

u, v = 10 ,10

47. Using this recursive definition${ a }^{ n }=\begin{cases} 1\quad \quad \quad \quad \quad \quad ifn=0 \\ a\times { a }^{ n }-1\quad otherwise \end{cases}$how many multiplications are needed to calculate a10?

(a)

11

(b)

10

(c)

9

(d)

8

48. Which of the following is the key to construct iterative algorithms

(a)

loop invariant

(b)

loop updation

(c)

loop variable

(d)

lop condition

49. How many important points the loop variant is true?

(a)

1

(b)

2

(c)

3

(d)

4

50. The smallest individual unit in a program is:

(a)

Program

(b)

Algorithm

(c)

Flowchart

(d)

Tokens

51. Which of the following data type is not a fundamental type?

(a)

signed

(b)

int

(c)

float

(d)

char

52. Identifiers are also called

(a)

literals

(b)

constants

(c)

variables

(d)

seperators

53. Literals are also called

(a)

constants

(b)

punctuators

(c)

operators

(d)

identifiers

54. In which year, the first standardized version, was published?

(a)

1983

(b)

1984

(c)

1998

(d)

2014

55. Which of the following is a current statement?
(i) C++ is a Hybrid language
(ii) C++ not an object driven language
(iii) C++ supports exception handling
(iv) Data hiding possible

(a)

only (i)(ii)

(b)

only (i), (iii)

(c)

only (i), (iii),(iv)

(d)

only (iii), (ii)

56. Which of the following used to identify the type of data and associated operations of handling it?

(a)

literals

(b)

Datatypes

(c)

Keywords

(d)

puntuators

57. Which of the following is not a new fundamental datatype?

(a)

bool

(b)

char 16-t

(c)

char 32-t

(d)

char

58. How many modifiers are there in C++?

(a)

1

(b)

2

(c)

3

(d)

4

59. In C++, the group of statement should be enclosed within:

(a)

{ }

(b)

[ ]

(c)

( )

(d)

< >

60. How many times the following loop with execute? for (int i=0; i<10; i++)

(a)

0

(b)

10

(c)

9

(d)

11

61. The null or empty statement is a statement containing only a

(a)

semicolon (;)

(b)

colon (:)

(c)

comma ,

(d)

bracess { }

62. Which of the statement(s) called as control flow?

(a)

branching

(b)

iteration

(c)

jumping

(d)

function calls

(e)

all of these

63. Which of the following is an alternative for 'if else statement'?

(a)

Relational operator

(b)

Logical operator

(c)

Unary operator

(d)

Conditional operator

64. Which of the following statement is true?

(a)

expression 1? expression 2 : expression 3 ;

(b)

expression 1: expression 2 ? expression 3 ;

(c)

expression 1; expression 2 : expression 3 ?

(d)

expression I? expression 2 ; expression 3 ?

65. Which of the following header file defines the standard I/0 predefined functions?

(a)

stdio.h

(b)

nnath.h

(c)

string.h

(d)

ctype.h

66. Which of the following function is with a return value and without any argument?

(a)

x=display(int, int)

(b)

x=display()

(c)

y=display(float)

(d)

display(int)

67. Which of the following function does not return I?

(a)

isupper ()

(b)

toupper()

(c)

islower()

(d)

isdigit()

68. The result of sqrt(-9) is

(a)

+3

(b)

-3

(c)

0

(d)

error

69. Which of the following is not a pow() function argument?
(i) base
(ii) exponent
(iii) character

(a)

Only (i)

(b)

Only (ii)

(c)

Only (iii)

(d)

both (ii) and (iii)

70. Which of the following is not a return type of pow() function?

(a)

integer

(b)

double

(c)

float

(d)

long double

71. A variable declared above all blocks and functions and main ( ) function has the scope

(a)

file

(b)

function

(c)

class

(d)

local

72. Which of the following is the collection of variables of the same type that an referenced by a common name?

(a)

int

(b)

float

(c)

Array

(d)

class

73. Which of the following cannot be a structure member?

(a)

Another structure

(b)

Function

(c)

Array

(d)

variable of double datatype

74. If array is not initialized, all the array elements contain

(a)

initial value

(b)

garbage value

(c)

final value

(d)

no value

75. The first argument of get() function is

(a)

size of an array

(b)

name of an array

(c)

index number

(d)

number of elements

76. The paradigm which aims more at procedures.

(a)

Object Oriented Programming

(b)

Procedural programming

(c)

Modular programming

(d)

Structural programming

77. How many different approaches are there for problem solving using computer?

(a)

2

(b)

3

(c)

4

(d)

6

78. Which of the following statement is true?
(i) Modular Programming Emphasis on algorithm rather than data
(ii) Object oriented programming emphasis on data rather than algorithm.

(a)

only(i)

(b)

only (ii)

(c)

both (i) and (ii)

(d)

none of these

79. Which of the following provides the security of data?

(a)

Inheritance

(b)

Polymorphism

(c)

Data Abstraction

(d)

Encapsulation

80. Class x
{
int y;
public:
x(int z){y=z;}
}xl[4];
int main()
{ x x2(10);
return 0;}
How many objects are created for the above program?

(a)

10

(b)

14

(c)

5

(d)

2

81. Who developed C++?

(a)

Bjurne Strustrup

(b)

James Goushing

(c)

Dennis Retchie

(d)

Ken Thomson

82. By default, structure members are create as

(a)

protected

(b)

private

(c)

public

(d)

none of these

83. Which of the following represents the properties of a class?

(a)

members functions

(b)

data members

(c)

access specifiers

(d)

procedures

84. Which of the following function is not advisable when a member function having many statements?

(a)

Normal

(b)

in-line

(c)

outline

(d)

non-inline

85. In which of the following method the function works directly on the original object?

(a)

pass by method

(b)

pass by reference

(c)

pass by argument

(d)

pass by value

86. How will you invoke the function dispchar() for the following input?
To print Dollar for 10 times

void dispchar(char ch='$';int size=10) { for(int i=1;i < = size;i++) cout << ch } (a) dispchar (); (b) dispchar( ch,size); (c) dispchar($,10);

(d)

dispchar('\$',10 times);

87. Which of the following statement is true or false?
(iii) Function overloading helps by reducing the number of function names to be remembered
(iv) Scope resolution operator cannot be overloaded.

(a)

i-false, ii-true, iii-true, iv-false

(b)

i-true, ii-true, iii-true, iv-true

(c)

i-false, ii-false, iii-true, iv-true

(d)

i-true, ii-true, iii-false, iv-true

88. Which of the following identifies a given member function is a constructor?

(a)

compiler

(b)

class

(c)

object

(d)

method

89. Inheritance is process of creating new class from

(a)

Base class

(b)

abstract

(c)

derived class

(d)

Function

90. Which of the following feature of oops acquires the properties of the existing class?

(a)

polymorphism

(b)

Encapsulation

(c)

Inheritance

(d)

Data abstraction

91. In which type of inheritance the base class do not have any relationship between them?

(a)

Multilevel inheritance

(b)

Hierarchical inheritance

(c)

Multiple inheritance

(d)

Hybrid inheritance

92. Which of the following class destructor expires first____________
(i) base class
(ii) derived class

(a)

only (i)

(b)

only (ii)

(c)

both (i) and (ii)

(d)

none of these

93. The derived class member, functions have the same of the base class member functions is called

(a)

(b)

data hiding

(c)

data binding

(d)

over riding

94. The process of converting cipher text to plain text is called

(a)

Encryption

(b)

Decryption

(c)

key

(d)

proxy server

95. Which of the following is a crime which involves computer and network?

(a)

Phishing

(b)

Pharming

(c)

Hacking

(d)

Piracy

(e)

All of these

96. Who breaks into someone else's computer system called

(a)

Hacker

(b)

Cracker

(c)

Breaker

(d)

Cipher

97. "Phishing without a trop" called

(a)

Hacking

(b)

Cracking

(c)

Pharming

(d)

Warehouse

98. Which ofthe following search engine gives Tamil virtual keyboard?

(a)

Bing

(b)

Yahoo

(c)

Safari

(d)

99. In white OS, Sellinam Tamil keyboard layout works?

(a)

windows

(b)

linux

(c)

Android

(d)

iOS

100. The first Tamil programming language is

(a)

Ezhil

(b)

Kuzhal

(c)

Thamizpori

(d)

kamban