Source Files, Classes and Operator Overloading in C++ Quiz 1

1 / 50

Pick the correct statement.

Inline function are always large

Macros looks like function calls but they are actually not

Macros and inline functions are same thing

Inline functions looks like function but they are not

2 / 50

setprecision requires which of the following header file?

console.h

iomanip.h

stdlib.h

conio.h

3 / 50

How many types of linkages are there in C++?

4 / 50

Constructors are used to ____________

delete the objects

construct the data members

both initialize the objects & construct the data members

initialize the objects

5 / 50

How many types of models are available to create the user-defined data type?

6 / 50

Pick the other name of operator function.

object overloading

function overloading

operator overloading

member overloading

7 / 50

To use internal linkage we have to use which keyword?

extern

public

static

static or extern

8 / 50

Which of the following is a valid class declaration?

class A { int x; };

object A { int x; };

class B { }

public class A { }

9 / 50

Pick the incorrect statement about inline functions in C++?

They reduce function call overheads

They are generally very large and complicated function

Saves overhead of a return call from a function

These functions are inserted/substituted at the point of call

10 / 50

When struct is used instead of the keyword class means, what will happen in the program?

access is public by default

access is protected by default

access is denied

access is private by default

11 / 50

To use external linkage we have to use which keyword?

const

extern

argc

static

12 / 50

What is the user-defined header file extension in c++?

cpp

13 / 50

How the objects are self-referenced in a member function of that class.

By passing self as a parameter in the member function

Using * with the name of that object

Using a special keyword object

Using this pointer

14 / 50

Which of the following keyword is used to declare the header file?

namespace

exclude

include

string

15 / 50

What does a default header file contain?

prototype

implementation

declarations

pointing

16 / 50

What does a mutable member of a class mean?

A member that can never be changed

A member that can be updated only if it not a member of constant object

A member that is global throughout the class

A member that can be updated even if it a member of constant object

17 / 50

The data members and functions of a class in C++ are by default ____________

public & protected

public

protected

private

18 / 50

Which of the following header files is required for creating and reading data files?

ofstream.h

console.h

ifstream.h

fstream.h

19 / 50

Which functions of a class are called inline functions?

All the functions that are defined outside the class

All functions defined inside or with the inline keyword

All the functions accessing static members of the class

All the functions containing declared inside the class

20 / 50

Which category of data type a class belongs to?

Fundamental data type

User defined derived data type

Atomic data type

Derived data type

21 / 50

What does the data type defined by union will do?

It allow one different portion of memory to be accessed as different data types

It allow one same portion of memory to be accessed as different data types

It allow one same portion of memory to be accessed as same data types

It allow one different portion of memory to be accessed as same data types

22 / 50

Which other keywords are also used to declare the class other than class?

union

struct

object

both struct & union

23 / 50

What is the syntax of user-defined data types?

def NameByUser ExistingDataType

def NameByUser ExistingData

typedef ExistingDataType NameByUser

typedef NameByUser ExistingDataType

24 / 50

How to declare operator function?

name of the operator

name of the class

operator sign

operator

25 / 50

How many types of user-defined data type are in c++?

26 / 50

Inline functions are avoided when ____________________________

function contains static variables

function have loops

function have recursive calls

all of the mentioned

27 / 50

Which of the following operators can?t be overloaded?

[]

28 / 50

What is the use of no linkage?

make the entity visible only to that block

make the entity visible to other blocks in the same program

make the entity visible to other programs

make the entity invisible

29 / 50

Which operator a pointer object of a class uses to access its data members and member functions?

30 / 50

Which of these following members are not accessed by using direct member access operator?

both private & protected

protected

private

public

31 / 50

Identify the incorrect statement.

iostream is a standard header and iostream.h is a non-standard header

iostream is a non-standard header

iostream is a standard header and iostream.h is a standard header

iostream is a non-standard header and iostream.h is a non-standard header

32 / 50

Which is used to use a function from one source file to another?

declaration

prototype

variable

code

33 / 50

Which one is used to refer to program elements in any translation units?

external linkage

no linkage

internal linkage

internal & external linkage

34 / 50

Which is used to define the member of a class externally?

!!$

35 / 50

Which of the header file must be included to use stringstream?

36 / 50

How many objects can present in a single class?

as many as possible

37 / 50

How many specifiers are present in access specifiers in class?

38 / 50

Identify the correct statement.

typedef will not creates synonyms of existing types

typedef create own types

typedef create different types

typedef does not create different types. It only creates synonyms of existing types

39 / 50

How to access the object in the class?

resolution operator

scope resolution operator

direct member access operator

ternary operator

40 / 50

What is the scope of typedef defined data types?

inside that block only

outside the program

whole program

main function

41 / 50

Which special character is used to mark the end of class?

;

42 / 50

What is operator overloading in C++?

Ability to provide the operators with some special meaning for user defined data type

All of the mentioned

Redefining the way operator works for user defined types

Overriding the operator meaning by the user defined meaning for user defined data type

43 / 50

What is the default type of linkage that is available for identifiers?

external

no linkage

single linkage

internal

44 / 50

Which of the following statements is NOT valid about operator overloading?

The overloaded operators follow the syntax rules of the original operator

None of the mentioned

The overloaded operator must have at least one operand of its class type

Only existing operators can be overloaded

45 / 50

Where does the object is created?

class

constructor

attributes

destructor

46 / 50

Which keyword is used to define the user defined data types?

union

type

typedef

def

47 / 50

What does a class in C++ holds?

functions

arrays

data

both data & functions

48 / 50

Operator overloading is ___________

making the new operator

giving new meaning to existing operator

making c++ operator works with objects

adding operation to the existing operators

49 / 50

Which of the following header file does not exist?

50 / 50

Pick out the other definition of objects.

instance of the class

member of the class

attribute of the class

associate of the class

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