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Questions:

Multiple Choice Question

100 x 1 = 100

Recursion must have at least ____________ base case.

(a)

one

(b)

two

(c)

three

(d)

four

In a loop, if L is an invariant of the loop body B, then L is known as a __________

(a)

recursion

(b)

variant

(c)

loop invariant

(d)

algorithm

In which year E W Dijkstra was awarded ACM Turing Award?

(a)

1972

(b)

1974

(c)

1970

(d)

1971

___________is an algorithm design technique, closely related to induction.

(a)

Iteration

(b)

Invariant

(c)

Loop invariant

(d)

Recursion

__________ is a diagrammatic notation for representing algorithms.

(a)

Pseudo code

(b)

Flowchart

(c)

Program

(d)

Languages

What is the specification of the algorithm?

(a)

divide (A + B)

(b)

square - root(n)

(c)

square - root (x)

(d)

adding (A, B)

________ is the general idea behind positional numbering system

(a)

Radix

(b)

Computer memory

(c)

Binary number

(d)

Decimal number

The______operator is defined in booolgan algebra by the use of the dot (.) operator.

(a)

AND

(b)

(c)

NOT

(d)

NAND

How many base case at least must be in recursion?

(a)

(b)

(c)

(d)

10.

Which of the following is the key to construct iterative algorithms?

(a)

loop invariant

(b)

loop updation

(c)

loop variable

(d)

loop condition

11.

The unchanged variables of the loop body is called loop _______.

(a)

condition

(b)

loop statement

(c)

loop variable

(d)

loop invariant

12.

Which of the following is updated when each time the loop body is executed?

(a)

Data

(b)

Variables

(c)

Function

(d)

All of these

13.

Which of the following algorithm design techniques to execute the same action repeatedly?

(a)

Assignment

(b)

Iteration

(c)

Recursion

(d)

Both b and c

14.

Using this recursive definition
\(a^n= \begin{cases}1 & \text { if } n=0 \\ a \times a^{n-1} & \text { otherwise }\end{cases}\)
how many multiplications are needed to calculate a¹⁰?

(a)

(b)

(c)

(d)

15.

We wish to cover a chessboard with dominoes,ロロ the number of black squares and the number of white squares covered by dominoes, respectively, placing a domino can be modeled by

(a)

b:= b + 2

(b)

w:= w + 2

(c)

b, w := b + 1, w + 1

(d)

b:= w

16.

A loop invariant need not be true

(a)

at the start of the loop

(b)

at the start of each iteration

(c)

at the end of each iteration

(d)

at the start of the algorithm

17.

The Tamil alphabets have _______.

(a)

soup

(b)

grantha

(c)

numerals

(d)

All of these

18.

Which of the following programs uses ASCII Code?

(a)

Only C

(b)

only C++

(c)

Both C, C++

(d)

Java

19.

Which of the following characters are used to search multiple files and folders?

(a)

Numeric

(b)

Alphanumeric

(c)

Wild card

(d)

All of these

20.

Expansion of BCD is......

(a)

Bar Code Decoding

(b)

Binary Code Digit

(c)

Binary Coded Decimal

(d)

Byte Coded Decimal

21.

The 2's complement of 1101₂is _______.

(a)

1100₂

(b)

1010₂

(c)

0101₂

(d)

0011₂

22.

Expansion of HDMI is .................

(a)

Higher Display Multimedia Information

(b)

High Definition Memory Information

(c)

High Definition Multimedia Interface

(d)

High Definition Media Interface

23.

How many types of windows you can work with?

(a)

(b)

(c)

(d)

Many

24.

The most popular way of representing negative numbers in computer systems is.......

(a)

I's complement

(b)

Signed bit

(c)

2's complement

(d)

All of these

25.

Which complement performs the logical negation on each individual bit?

(a)

Signed

(b)

Unsigned

(c)

2's

(d)

1's

26.

Which must be created on files and folders and placed on the Desktop to help automate your work?

(a)

Icons

(b)

Task bar

(c)

Shortcuts

(d)

Program

27.

Which icon on the desktop is used to recover the deleted files and folders?

(a)

My computer

(b)

This PC

(c)

Recycle bin

(d)

Computer bin

28.

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

(a)

*,?

(b)

@,?

(c)

+,-

(d)

*,-

29.

Which facility provides you to move or copy the file or folders in Windows?

(a)

Windows Explorer

(b)

My computer

(c)

This PC

(d)

Recycle bin

30.

Which RAM is more expensive?

(a)

SRAM

(b)

DRAM

(c)

RAM

(d)

ERAM

31.

1 MB.................is KB.

(a)

256

(b)

512

(c)

1024

(d)

128

32.

What is the name of the bar which appear at the bottom of the screen?

(a)

Scroll bar

(b)

Title bar

(c)

Task bar

(d)

Menu bar

33.

Which of the following is an example of RISC processor?

(a)

Intel 386

(b)

Motorola 68000

(c)

AMD K7

(d)

Intel 486

34.

1 Byte = ........... bits.

(a)

(b)

(c)

1024

(d)

512

35.

The processed data is called ________.

(a)

Information

(b)

Knowledge

(c)

datum

(d)

files

36.

Match the Following

(i)	Out device	(1)	Retrieve the data is possible
(ii)	CPU	(2)	Data and instructions given to the computer
(iii)	Memory	(3)	Temporarily stores data
(iv)	Mass Storage Device	(4)	Delivers the data processed by CPU
(v)	Input Device	(5)	Executes Instruction

(a)

i)	ii)	iii)	iv)	v)
5	4	1	2	3

(b)

i)	ii)	iii)	iv)	v)
4	5	3	1	2

(c)

i)	ii)	iii)	iv)	v)
4	5	3	2	1

(d)

i)	ii)	iii)	iv)	v)
5	4	3	2	1

37.

Which company developed first digital computer?

(a)

Atanasoff Berry Computer

(b)

AT & T bell

(c)

IBM

(d)

Microsoft

38.

How many disk drive options are there in Windows?

(a)

(b)

(c)

(d)

39.

Which serves as a contract between the designer and users of the algorithm?

(a)

Abstraction

(b)

Specification

(c)

Composition

(d)

Decomposition

40.

How many types of Register the CPU has?

(a)

(b)

(c)

(d)

41.

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

(a)

(b)

(c)

(d)

42.

Decomposition means ________.

(a)

States the relation between the input and the output

(b)

Hiding unnecessary details

(c)

An algorithm is composed of assignment and control flow statement

(d)

Dividing the main algorithm into functions

43.

Which of the following is not an algorithm design technique?

(a)

Specification

(b)

Abstraction

(c)

Control flow

(d)

Composition

44.

Which changes when a process evolves?

(a)

State

(b)

behaviour

(c)

Process

(d)

Procedure

45.

Which of the following is not a mobile device?

(a)

Phone

(b)

tablet

(c)

MP3 Player

(d)

Apple iOS

46.

Expansion of CPU is _____

(a)

Control processing unit

(b)

Central processor unique

(c)

Central processing unit

(d)

Control processor unit

47.

Every task given to a computer-follows a(n) ______ cycle.

(a)

BPO

(b)

IPO

(c)

ANN

(d)

NLP

48.

Interactive operating system is a____

(a)

GUI

(b)

CUI

(c)

(d)

49.

Which button is used to get the Windows desktop?

(a)

Aerotop

(b)

Aeroseek

(c)

Aeropeck

(d)

Aerodesk

50.

The present computers are belongs to _____ generation.

(a)

Seventh

(b)

Eighth

(c)

Sixth

(d)

Fifth

51.

The data stored in a variable is also called ________.

(a)

value

(b)

process

(c)

input

(d)

control flow

52.

In computers, operations on data performed by ________.

(a)

instructions

(b)

program

(c)

process

(d)

all of these

53.

Which operating system provides GUI?

(a)

Distributed

(b)

Real time

(c)

Interactive

(d)

Multi-User

54.

Real time OS are mostly used for ______.

(a)

Robotics

(b)

Weather

(c)

Airline communication

(d)

Bank

55.

Super Conductors are used in _____ generation computers.

(a)

fourth

(b)

sixth

(c)

fifth

(d)

third

56.

The first general purpose Microprocessor developed by ............

(a)

IBM

(b)

Intel

(c)

Apple

(d)

Microsoft

57.

Which of the following is not Second generation computers?

(a)

IBM1401

(b)

IBM1620

(c)

UNIVAC1108

(d)

UNIVAI

58.

NAND is called as ......Gate

(a)

Fundamental Gate

(b)

Derived Gate

(c)

Logical Gate

(d)

Universal gate

59.

How many times the loop is iterated?
i:= 0
while i \(\neq \)5
i := i+ 1

(a)

(b)

(c)

(d)

60.

If C is true, S1 is executed in both the flowcharts, but S2 is executed in

(a)

(1) only

(b)

(2) only

(c)

both (1) and (2)

(d)

neither (1) nor (2)

61.

If C is false just before the loop, the control flows through
1 SI
2 while C
3 S2
4 S3

(a)

S1 ; S3

(b)

S 1 ; S2 ; S3

(c)

S 1 ; S2 ; S2 ; S3

(d)

S 1 ; S2 ; S2 ; S2 ; S3

62.

If C1 is false and C2 is true, the compound statement
1 if CI
2 SI
3 else
4 if C2
5 S2
6 else
7 S3
executes

(a)

(b)

(c)

(d)

none

63.

Which of the following properties is true after the assignment (at line 3)?
1 --i, j = 0, 0
2 i, j := i+1, j-1
3 -- ?

(a)

i + j > 0

(b)

i+j < 0

(c)

i+j=0

(d)

i = j

64.

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

65.

Which of the following is not a Multiuser Operating system?

(a)

Unix

(b)

Linux

(c)

Windows

(d)

none of these

66.

Which of the following is not included in computer organization?

(a)

I/O devices

(b)

Software

(c)

CPU

(d)

Main memory

67.

Which of the following operating systems not used in laptops?

(a)

Windows

(b)

Linux

(c)

iOS

(d)

Unix

68.

Which of the following acts as an interface between a user and a computer?

(a)

Input device

(b)

Output device

(c)

Operating system

(d)

Bus

69.

Which statement executes the same action repeatedly?

(a)

Sequential

(b)

Conditional

(c)

Iterative

(d)

All of these

70.

Which of the following describes a test of the statement?

(a)

Order

(b)

Condition

(c)

Statement

(d)

Instruction

71.

Which of the following is not a control flow statement?

(a)

Sequential

(b)

Assignment

(c)

Alternative

(d)

Iterative

72.

Which of the following statement is used to alter the normal flow of control?

(a)

Compound

(b)

Assignment

(c)

Executable

(d)

All of these

73.

Which of the following is the most widely used notation to represent algorithms?

(a)

Flowchart

(b)

Pseudo code

(c)

English language

(d)

all of these

74.

Which of the following statement is false?
(i) Algorithms are not composed of statements
(ii) Algorithms expressed in Pseudo code are intended to be executed by computers.
(iii) Flowchart not give a visual intuition of the flow of control
(iv) Pseudo code is not a notation similar to the programming language.
(v) All of these

(a)

only (ii) and (iv)

(b)

only (ii), (iii), (iv)

(c)

only (i) and (ii)

(d)

(v)

75.

If i = 5 before the assignment i := i-1 after the assignment, the value of i is

(a)

(b)

(c)

(d)

76.

Stating the input property and the input-output relation a problem is known

(a)

specification

(b)

statement

(c)

algorithm

(d)

definition

77.

Omitting details inessential to the task and representing only the essential features of the task is known as

(a)

specification

(b)

abstraction

(c)

composition

(d)

decomposition

78.

Which of the following activities is algorithmic in nature?

(a)

Assemble a bicycle.

(b)

Describe a bicycle.

(c)

Label the parts of a bicycle.

(d)

Explain how a bicycle works.

79.

Display devices are connected to the computer through

(a)

USB port

(b)

Ps/2 port

(c)

SCSI port

(d)

VGA connector

80.

Where will you select the option to log out, suspend, restart, or shut down from the desktop of Ubuntu OS?

(a)

Session Indicator

(b)

Launcher

(c)

Files

(d)

81.

What is the meaning of "Hibernate" in Windows XP/Windows 7?

(a)

Restart the Computer in safe mode

(b)

Restart the Computer in hibernate mode

(c)

Shutdown the Computer terminating all the running applications

(d)

Shutdown the Computer without closing the running applications

82.

Under which of the following OS, the option Shift + Delete - permanently deletes a file or folder?

(a)

Windows 7

(b)

MS-DOS

(c)

Linux

(d)

Android OS

83.

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

84.

Which of the following Operating system are support Mobile Devices?

(a)

Windows 7

(b)

Linux

(c)

BOSS

(d)

iOS

85.

Which of the following OS is a Commercially licensed Operating system?

(a)

Windows

(b)

UBUNTU

(c)

FEDORA

(d)

REDHAT

86.

Which of the following is not a Function of Operating System?

(a)

Process Management

(b)

Memory Management

(c)

Security management

(d)

Compiler Environment

87.

Identify the usage of Operating Systems

(a)

Easy interaction between the human and computer

(b)

Controlling Input & Output Devices

(c)

Managing use of main memory

(d)

All the above

88.

Which of the following device identifies the location when address is placed in the memory address register?

(a)

locator

(b)

encoder

(c)

decoder

(d)

multiplexed

89.

Which of the following is not the part of a microprocessor unit?

(a)

ALU

(b)

Control unit

(c)

Cache memory

(d)

90.

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

(a)

(b)

255

(c)

256

(d)

128

91.

2^{\(\wedge \)}50 is referred as

(a)

Kilo

(b)

Tera

(c)

Peta

(d)

Zetta

92.

How many bytes does 1 KiloByte contain?

(a)

1000

(b)

(c)

(d)

1024

93.

Which generation of computer used IC's?

(a)

First

(b)

Second

(c)

Third

(d)

Fourth

94.

Which one of the following is the main memory?

(a)

ROM

(b)

RAM

(c)

Flash drive

(d)

Hard disk

95.

Expand POST

(a)

Post on self Test

(b)

Power on Software Test

(c)

Power on Self Test

(d)

Power on Self Text

96.

When a system restarts which type of booting is used.

(a)

Warm booting

(b)

Cold booting

(c)

Touch boot

(d)

Real boot

97.

Which one of the following is used to in ATM machines

(a)

Touch Screen

(b)

Speaker

(c)

Monitor

(d)

Printer

98.

_____ output device is used for printing building plan.

(a)

Thermal printer

(b)

Plotter

(c)

Dot matrix

(d)

Inkjet printer

99.

Identify the input device

(a)

Printer

(b)

Mouse

(c)

Plotter

(d)

Projector

100.

First generation computers used

(a)

Vacuum tubes

(b)

Transistors

(c)

Integrated circuits

(d)

Microprocessors

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Answers Key:

Multiple Choice Question

100 x 1 = 100

(a)
one

(a)
1972

(d)
Recursion

(b)
Flowchart

(b)
square - root(n)

(a)
Radix

(a)
AND

(a)
1

10.

(a)
loop invariant

11.

(d)
loop invariant

12.

(b)
Variables

13.

(d)
Both b and c

14.

15.

(d)
b:= w

16.

(d)
at the start of the algorithm

17.

(d)
All of these

18.

19.

20.

21.

(b)
1010₂

22.

23.

(b)
2

24.

25.

(b)
Unsigned

26.

27.

28.

29.

(a)
Windows Explorer

30.

(a)
SRAM

31.

(a)
256

32.

33.

34.

(a)
8

35.

(a)
Information

36.

(b)

i) ii) iii) iv) v)

4 5 3 1 2

37.

(a)
Atanasoff Berry Computer

38.

39.

(b)
Specification

40.

(b)
2

41.

42.

(d)
Dividing the main algorithm into functions

43.

44.

(a)
State

45.

(d)
Apple iOS

46.

47.

(b)
IPO

48.

(a)
GUI

49.

50.

51.

(a)
value

52.

(a)
instructions

53.

54.

55.

56.

(b)
Intel

57.

(d)
UNIVAI

58.

(b)
Derived Gate

59.

(b)
5

60.

(a)
(1) only

61.

(a)
S1 ; S3

62.

(b)
S2

63.

64.

(a)
u, v = 5,5

65.

(d)
none of these

66.

(b)
Software

67.

68.

69.

70.

(b)
Condition

71.

(b)
Assignment

72.

(a)
Compound

73.

(b)
Pseudo code

74.

(d)
(v)

75.

(b)
4

76.

(a)
specification

77.

(b)
abstraction

78.

(a)
Assemble a bicycle.

79.

(d)
VGA connector

80.

(a)
Session Indicator

81.

(d)
Shutdown the Computer without closing the running applications

82.

(a)
Windows 7

83.

(a)
My Document

84.

(d)
iOS

85.

(a)
Windows

86.

(b)
Memory Management

87.

(d)
All the above

88.

89.

90.

(a)
64

91.

92.

(d)
1024

93.

94.

(b)
RAM

95.

(d)
Power on Self Text

96.

(a)
Warm booting

97.

(a)
Touch Screen

98.

(b)
Plotter

99.

(b)
Mouse

100.

(a)
Vacuum tubes

11th Computer Science Important One Mark Question Paper

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Std: 11th Standard - Computer Science

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NEW MCQ Practice Test - Tamilnadu Stateboard Class 11

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