Computer Software Exam

Statement scanf(“%d”,80);

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Assign an integer to variable i
Give an error message
Print the value of i
Assign an float to variable i

The output of this program is int main () { cout << "Hello World!" return 0; }

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Hello World
Syntax error
0
Hello World!

A cluster of red, green and blue diodes is driven together to form a full-color pixel in a

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LCD Monitor
LED Monitor
CRT Monitor
Monochrome Monitor

Which of the following correctly describes the meaning of‘namespace’ feature in C++?

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Namespaces refer to the memory space allocated for names used in a program
Namespaces refer to space between the names in a program
Namespaces refer to packing structure of classes in a program.
Namespaces provide facilities for organizing the names in aprogram to avoid name clashes

Which of the following is/are advantages of cellular partitioned structure:

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Simultaneous read operations can be overlapped
Search time is reduced
Both a & b
None of the above

Which of the following printer produces most noise?

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Dot Matrix Printer
Inkjet Printer
Laser Printer
None of above

The storage capacity of a floppy disk is measured in

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KB
MB
GB
TB

If a member needs to have unique value for all the objects of that same class, declare the member as

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Global variable outside class
Local variable inside constructor
Static variable inside class
Dynamic variable inside class

‘Prime area’ in context of file system is defined as

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It is memory area created by operating system
It is an area into which data records are written
It is the main area of a web page
None of the above

Which of the following correctly describes C++ language?

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Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language

A continue statement causes execution to skip to

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The return 0; statement
The first statement after the loop
The statement following the continue statement
The next iteration of the loop

What’s wrong? while( (i < 10) && (i > 24))

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The logical operator && cannot be used in a test condition
The while loop is an exit-condition loop
The test condition is always false
The test condition is always true

Originally ‘C’ was developed as:

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System programming language
General purpose language
Data processing language
None of the above

Which of the following is a valid destructor of the class name “Country”

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Int ~Country()
Void Country()
Int ~Country(Country obj)
Void ~Country()

If class A is friend of class B and if class B is friend of class C, which of the following is true?

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Class C is friend of class A
Class A is friend of class C
Class A and Class C do not have any friend relationship
None of the above

To record and produce sound in a computer system you need

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Microphone
Speakers
Sound card
All of above

A standard CD ROM can hold data up to

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1.44 MB
650 MB
2 GB
1 TB

Inline functions are invoked at the time of

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Run time
Compile time
Depends on how it is invoked
Both b and c above

Which classes allow primitive types to be accessed as objects?

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Storage
Virtual
Friend
Wrapper

Which of the following keyword supports dynamic method resolution?

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Abstract
Virtual
Dynamic
Typeid

How many copies of a class static member are shared between objects of the class?

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A copy of the static member is shared by all objects of a class
A copy is created only when at least one object is created from that class
A copy of the static member is created for each instntiation of the class
No memory is allocated for static members of a class

What is the Difference between struct and class in terms of Access Modifier?

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By default all the struct members are private while by default class members are public.
By default all the struct members are protected while by default class members are private.
By default all the struct members are public while by default class members are private.
By default all the struct members are public while by default class members are protected.

The output of this program is int a = 10;void main(){int a = 20;cout << a << ::a;}

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Syntax error
10 20
20 10
20 20

Which of the following operator cannot be overloaded?

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#NAME?
== (equality operator)
–> (row operator)
:: (cope resolution operator)

Which of the following is not a file operation:

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Repositioning
Truncating
Appending
None of the above

Which of the following is true about const member functions?

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Const members can be invoked on both const as well as nonconst objects
Const members can be invoked only on const objects and not on nonconst objects
Nonconst members can be invoked on const objects as well as nonconst objects
None of the above

Which of the following operators can be overloaded?

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. (Dot or member access operator)
& (Address-of operator)
Sizeof operator
?: (Conditional operator)

What is shallow copy?

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A shallow copy creates a copy of the dynamically allocated objects too.
A shallow copy just copies the values of the data as they are.
A shallow copy creates a copy of the statically allocated objects too
Both b and c above

If there is more than one statement in the block of a for loop, which of the following must be placed at the beginning and the ending of the loop block?

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Parentheses ( )
Braces { }
Brackets [ ].
Arrows < >

A disk is divided into several concentric circles called

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Track
Sector
Cylinder
Cluster

Which of the following is not a valid conditional inclusions in preprocessor directives

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#Ifdef
#Ifundef
#Endif
#Elif

Which of the following functions below can be used Allocate space for array in memory?

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Calloc()
Malloc()
Realloc()
Both a and b

Which looping process is best used when the number of iterations is known?

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For
While
Do-while
All looping processes require that the iterations be known

Which one of the following is not a fundamental data type in C++

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Float
String
Int
Wchar_t

Latency time is:

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Time taken by read/write head mechanism to position itself over appropriate cylinder
Time taken to transfer a dta from memory
Time taken by appropriate sector to come under read/write head
None of the above

The two types of file structure existing in VSAM file are

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Key sequenced structure, entry sequenced structure
Key sequence structure, exit sequenced structure
Entry sequence structure, exit sequenced structure
None of the above

Which of the following is not recommended in a header file?

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Type definitions (typedefs)
Class definitions
Function definitions
Template definitions

The return value of the following code is Class1& test(Class1 obj){Class1 *ptr = new Class1();.........return ptr;}

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Object of Class1
Reference to ptr
Reference of Class1
Object pointed by ptr

What’s wrong? for (int k = 2, k <=12, k++)

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The increment should always be ++k
The variable must always be the letter i when using a for loop
There should be a semicolon at the end of the statement
The commas should be semicolons

Seek time is

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Time taken to retrieve a dta
Time taken by read/write head mechanism to position itself over appropriate cylinder
Time taken by appropriate sector to come under read/write
None of the above

Computer Software Exam : Question 1 of 40