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11th Computer Science Weekly Test -3 ( Specification and Abstraction )

MABS Institution

11th Computer Science Weekly Test -3 ( Specification and Abstraction )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

In which control flow, the statements are repeated until the condition becomes false?

sequential
alternative control flow
iterative
all of these

If i: = 10 before the assignment, then i : = i % 2 after the assignment __________.

10
5
0
1

___________________state the properties of the given input and the relation between the input and the output.

Composition
Abstraction
Decomposition
Specification

Which of the following is not an algorithm design technique?

Specification
Abstraction
Control flow
Composition

Which one of the following defines the rights and responsibilities of the designer and the user?

Abstraction
Composition
Decomposition
Specification

A________ is like a sub algorithm

function
data
variable
state

Reasoning:
I. We can store a value in a variable using assignment operator.
II. We can change the value in a variable using assignment operator.
III. Assignment operator is = =

I and III is true
I and II is true
II and III is true
I, II, III is true

Which must be expressed using statements of a programming language?

Process
Instructions
algorithms
Specification

Find the wrong statement from the following

The state of a process can be represented by a set of variables in an algorithm
The state at any point of execution is simply the values of the variables at that point
As the values of the variables are changed, the state remains constant.
As a process evolves, the state changes.

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

specification
abstraction
composition
decomposition

Each part of _______________ algorithm is known as

input
function
variable
program

If the statement are executed one after the other, then it is ________ control flow.

Sequential
iterative
selection
alternative

The values of the variables when the algorithm finishes is __________.

final stage
final state
last stage
last state

Instructions of a computer are also known as ___________.

commands
statements
Abstractions
Functions

Which one of the following statements are not executed the computers?

Comment line
Header file
cin
cout

Fill in the box given below figure.

processing
solving
algorithm
functions

Which of the following activities is algorithmic in nature?

Assemble a bicycle
Describe a bicycle.
Label the parts of a bicycle.
Explain how a bicycle works.

Identify the function name: square (A + B) _________.

A
B
A+B
square

The order of execution of program statements is known as

variables
control flow
functions
association

Who was a Hungarian Mathematician?

G. Polya
John Wiley
Krysia Broda
Steve Vickers

How many parts are there in specification is __________.

2
3
4
5

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

specification
statement
algorithm
definition

Match the following
(a) Specification- (1) hiding the details
(b) Abstraction- (2) divide the main algorithm into functions
(c) Composition- (3) relation between the I/O
(d) Decomposition- (4) algorithm consists of control flow statements.

1,4,2,3
3,1,4,2
4, 1,3,2
1,4,3,2

Which of the following statement is true?

Computational processes the state can not changes
As a process evolves, the state can not changes.
Variables are not named boxes for storing data
Assignment statement is used to store the value of variable.

Which of the following statement is used to change the value of variable?

Arithmetic
Assignment
Arithmetic Assignment
Relational

If - - m, n = 22,5 andm, n : = m + 3, n - 1 then the value ofm and n are _________.

25, 4
24,5
22,5
23,21

How many statements are there to alter the normal flow of control?

1
2
3
many

Initially the values of P and Care 4 and 5 respectively
--P, C: =4, 5
P:=C
C : = P. Then find P and C

4 and 4
5 and 4
5 and 5
4 and 5

The input and output are passed between an algorithm and the user through

data
control flow
variables
functions

Identify the statement which is not true?
","option":true,"options":[{"option

113267
The name of the algorithm and the inputs
0

Which one of the following is not a building block of algorithm __________.

data
state
variables
functions

Which of the following design technique is used to hide the unnecessary details while solving the problem?

Specification
Abstraction
Composition
Decomposition

which one of the following is the assignment operator?

=
= =
+ = =
+ +

Which statements are used to an notate a program for the human readers?

Assignment
Control flow
Comments
Arithmetic

Decomposition means

States the relation between the input and the output
Hiding unnecessary details
An algorithm is composed of assignment and control flow statement.
Dividing the main algorithm into functions

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