Question # 1

The return type of the operator function for << operator is __________.

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class for which we overload operator

reference of ostream class (ostream&)

reference of istream class (istream&)

void

When an object of a class is defined inside an other class then

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Constructor of enclosing class will be called first

Constructor of inner object will be called first

Constructor and Destructor will be called simultaneously

None of the given options

Every class contains _______________.

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Constructor

Destructor

Both a constructor and a destructor

None of the given options

When an operator function is defined as member function for a binary Plus (+) operator then the number of argument it take is/are.

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Zero

One

Two

N arguments

The stream objects cin and cout are included in which header file?

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iostream.h

fstream.h

istream.h

ostream.h

*.doc is _____________ by type.

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Sequential File

Random Access File

Data File

Record File

The statement cin.get (); is used to,

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Read a string from keyboard

Read a character from keyboard

Read a string from file

Read a character from file

Which of the following is used with bit manipulation?

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Signed integer

Un-signed integer

Signed double

Un-signed double

Consider the following code segment. What will be the output of the following program? int func(int) ; int num = 10 ; int main(){ int num ; num = 5 ; cout << num ; cout << func(num) ; } int func(int x){ return num ; }

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5, 5

10, 5

5, 10

10, 10

Which of the following option will be true, if we overload "-=" operator?

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only - operator needs to be overloaded

Minus (-) and = operators need to be overloaded

the -= operator need to be overloaded explicitly

the - and = operators need to be overloaded implicitly

To access the data members of structure _______ is used.

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dot operator

* operator

U operator

None of given

Friend function of a class is ______________.

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Member function

Non-member function

Private function

Public function

NULL value has been defined in ______ and _________ header files.

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strings.h and iostream.h

ctype.h and conio.c

conio.c and conio.h

stdlib.h and stddef.h

Which of the following is the correct C++ syntax to allocate space dynamically for an array of 10 int?

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new int(10)

new int[10] ;

int new(10) ;

int new[10];

The function free() returns back the allocated memory got thorough calloc andmalloc to _____.

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stack

heap

stack and heap

None of the given options

Which of the following is correct way to initialize a variable x of int type with value 10?

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int x ; x = 10;

int x = 10;

int x, x = 10;

x = 10;

Overloaded delete operator function takes parameter of void pointer and returns.

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void

void pointer

pointer to an object

pointer of type int

When ever dynamic memory allocation is made in C/C++, it is freed_____________.

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Explicitly

Implicitly

Both explicitly and implicitly

None of the given options

Skill(s) that is/are needed by programmer’s _______________________.

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Paying attention to detail

Think about the reusability

Think about user interface

All of the given options

Header file: fstream.h includes the definition of the stream classes __________.

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ifstream, fstream, cout

ifstream, fstream, ofstream

fstream, cin, cout

None of the above

A Matrix can be composed of ints, floats or doubles as their elements. Best way is to handle this.

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Write a separate class to handle each

Use templates

Use strings to store all types

None of the given options

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