Question # 1

Which of the following function(s) is/are included in ctype.h header file?

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isdigit(int c)

isxdigit(int c )

tolower(int c)

All of the above

Structure is a collection of ______________ under a single name.

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Only Functions

Only Variables

Both Functions and Variables

None of the given options

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

Which of the following function call is correct for the function prototype? defaultParameters ( int a, int b = 7, char z = ‘*’ );

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defaultParameters (5);

defaultParameters (5, ‘8’);

defaultParameters (6, ‘#’);

defaultParameters (0, 0, ‘*’, 0);

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

A Pointer is a special variable that contain.

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Data values

Memory Address

Both data and values

None of the given option

Consider the following code segment. What will be the output of following code? Int addValue (int *a){ int b = (*a) + 2; return b ; } main () { int x =6 ; cout << x << “,” ; cout << addValue(&x) << “,” ; cout << x ; }.

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6,8,6

6,6,8

6,8,8

6,6,6

Which of the following statement is best regarding declaration of friend function?

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Friend function must be declared after public keyword

Friend function must be declared after private keyword

Friend function must be declared at the top within class definition

It can be declared anywhere in class as these are not affected by the public and private keywords

Operator overloading can be performed through__________________.

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Classes

Function

Operators

Reference

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

If text is a pointer of class String then what is meant by the following statement? text = new String [5];

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Creates an array of 5 string objects statically

creates an array of 5 string objects dynamically

Creates an array of pointers to string

Creates a string Object

When a value is referred by a normal variable then it is known as,

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Direct Reference

Indirect Reference

Partial Reference

Proper Reference

Friend function of a class is ______________.

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Member function

Non-member function

Private function

Public function

The normal source of cin object is

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File

Disk

Keyboard

RAM

Array is a data structure which store

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Memory addresses

Variables

Data Type

Data

The programs, in which we allocate static memory, run essentially on ________

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Heap

System Cache

None of the given options

Stack

Assignment operator is -------------------------associative.

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right

left

binary

unary

In C/C++ if we define an array of size eight (8) i.e. int Arr [8]; then the last element of this array will be stored at

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Arr[0]

Arr[8]

Arr[7]

Arr[-1]

The number 544.53 must be stored in _____ data type.

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int

short

float (Sure)

char

What will be the correct syntax to declare two-dimensional array of float data type?

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float arr{2}{2} ;

float arr[2][2] ;

float arr[2,2] ;

float[2][2] arr ;

All preprocessor directives are started with the symbol______.

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*

+

@

#

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