Computer Software Exam

What is shallow copy?

1 Mark(s)

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

Which of the following is not true about preprocessor directives

1 Mark(s)

They begin with a hash symbol
They are processed by a preprocessor
They form an integral part of the code
They have to end with a semi colon

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

1 Mark(s)

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

What is the suitable output device for CAE, CAD and CAM?

1 Mark(s)

Dot Matrix Printers
Laser Printers
Plotters
Projectors

If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?

1 Mark(s)

const X* const
X* const
X*
X&

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

1 Mark(s)

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

Which of the following is not a magnetic storage medium?

1 Mark(s)

Floppy Disk
Hard Disk
Digital Versatile Disks
Cassettes and Cartridges

Which of the following is not a standard exception built in C++.

1 Mark(s)

Std::bad_creat
Std::bad_alloc
Std::bad_cast
Std::bad_typeid

Which of the following operator cannot be overloaded?

1 Mark(s)

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

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

1 Mark(s)

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

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

1 Mark(s)

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

There is nothing like a virtual constructor of a class.

1 Mark(s)

1

Which of the following is the most preferred way of throwing and handling exceptions?

1 Mark(s)

Throw by value and catch by reference.
Throw by reference and catch by reference.
Throw by value and catch by value
Throw the pointer value and provide catch for the pointer type.

Latency time is:

1 Mark(s)

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

When is std::bad_alloc exception thrown?

1 Mark(s)

When new operator cannot allocate memory
When alloc function fails
When type requested for new operation is considered bad, thisexception is thrown
When delete operator cannot delete the allocated (corrupted) object

Which device in microprocessor stores the data to be processed?

1 Mark(s)

ROM
RAM
Registers
ALU

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

1 Mark(s)

#Ifdef
#Ifundef
#Endif
#Elif

In a group of nested loops, which loop is executed the most number of times?

1 Mark(s)

The outermost loop
The innermost loop
All loops are executed the same number of times
Cannot be determined without knowing the size of the loops

Which of the following members do get inherited but become private members in child class

1 Mark(s)

Public
Private
Protected
All the above

Which of the following operators can be overloaded?

1 Mark(s)

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

STL is based on which of the following programming paradigms?

1 Mark(s)

Structured Programming
Object Oriented Programming (OOP)
Functional Programming
Aspect Oriented Programming (AOP)

A direct access file is:

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A file in which recoreds are arranged in a way they are inserted in a file
A file in which records are arranged in a particular order
Files which are stored on a direct access storage medium
None of the above

The storage capacity of a floppy disk is measured in

1 Mark(s)

KB
MB
GB
TB

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

1 Mark(s)

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

Which of the following relationship is known as inheritancerelationship?

1 Mark(s)

‘Has-a’ relationship
‘Is-a’ relationship
Association relationship
None of the above

Which of the following correctly describes C++ language?

1 Mark(s)

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

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

1 Mark(s)

Hello World
Syntax error
0
Hello World!

Which of the following is not an optical storage medium?

1 Mark(s)

CDs
DVDs
Blu Ray
Memory Sticks

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?

1 Mark(s)

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

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

1 Mark(s)

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

Under which of the following circumstances, synchronization takes place?

1 Mark(s)

When the file is closed
When the buffer is empty
Explicitly, with manipulators
Both a and c

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

1 Mark(s)

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

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

1 Mark(s)

Float
String
Int
Wchar_t

The conditional compilation

1 Mark(s)

It is taken care of by the compiler
It is setting the compiler option conditionally
It is compiling a program based on a condition
None of the above

Which of the following is true about const member functions?

1 Mark(s)

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

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

1 Mark(s)

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 two types of file structure existing in VSAM file are

1 Mark(s)

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

What is deep copy?

1 Mark(s)

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

Minimum number of temporary variable needed to swap the contents of 2 variables is:

1 Mark(s)

1
2
3
0

Each pass through a loop is called a/an

1 Mark(s)

Enumeration
Iteration
Culmination
Pass through

Computer Software Exam : Question 1 of 40