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

1 / 50

Inline functions are avoided when ____________________________

function contains static variables

function have loops

function have recursive calls

all of the mentioned

2 / 50

What does a default header file contain?

implementation

declarations

pointing

prototype

3 / 50

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

4 / 50

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

Using * with the name of that object

Using a special keyword object

Using this pointer

By passing self as a parameter in the member function

5 / 50

To use internal linkage we have to use which keyword?

extern

public

static

static or extern

6 / 50

How many objects can present in a single class?

as many as possible

7 / 50

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

single linkage

no linkage

external

internal

8 / 50

What does a class in C++ holds?

data

arrays

functions

both data & functions

9 / 50

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

object

both struct & union

struct

union

10 / 50

What does a mutable member of a class mean?

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

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

A member that can never be changed

A member that is global throughout the class

11 / 50

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

12 / 50

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

fstream.h

ifstream.h

console.h

ofstream.h

13 / 50

How to declare operator function?

name of the class

operator

operator sign

name of the operator

14 / 50

To use external linkage we have to use which keyword?

const

static

argc

extern

15 / 50

What is the syntax of user-defined data types?

def NameByUser ExistingDataType

typedef NameByUser ExistingDataType

def NameByUser ExistingData

typedef ExistingDataType NameByUser

16 / 50

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

access is denied

access is public by default

access is private by default

access is protected by default

17 / 50

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

namespace

exclude

string

include

18 / 50

How to access the object in the class?

ternary operator

direct member access operator

resolution operator

scope resolution operator

19 / 50

Which of the following header file does not exist?

20 / 50

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

None of the mentioned

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

Only existing operators can be overloaded

The overloaded operators follow the syntax rules of the original operator

21 / 50

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

They reduce function call overheads

These functions are inserted/substituted at the point of call

Saves overhead of a return call from a function

They are generally very large and complicated function

22 / 50

Where does the object is created?

constructor

attributes

destructor

class

23 / 50

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

;

24 / 50

What is the scope of typedef defined data types?

inside that block only

main function

outside the program

whole program

25 / 50

How many specifiers are present in access specifiers in class?

26 / 50

Which functions of a class are called inline functions?

All the functions that are defined outside the class

All the functions containing declared inside the class

All the functions accessing static members of the class

All functions defined inside or with the inline keyword

27 / 50

What is the use of no linkage?

make the entity visible to other blocks in the same program

make the entity invisible

make the entity visible only to that block

make the entity visible to other programs

28 / 50

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

29 / 50

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

!!$

30 / 50

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

code

declaration

variable

prototype

31 / 50

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

public & protected

public

private

protected

32 / 50

Pick the correct statement.

Macros and inline functions are same thing

Inline function are always large

Macros looks like function calls but they are actually not

Inline functions looks like function but they are not

33 / 50

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

34 / 50

What does the data type defined by union will do?

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

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

35 / 50

What is operator overloading in C++?

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

All of the mentioned

Redefining the way operator works for user defined types

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

36 / 50

setprecision requires which of the following header file?

console.h

iomanip.h

stdlib.h

conio.h

37 / 50

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

type

typedef

def

union

38 / 50

Which of the following operators can?t be overloaded?

[]

39 / 50

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

private

public

protected

both private & protected

40 / 50

Operator overloading is ___________

making the new operator

making c++ operator works with objects

adding operation to the existing operators

giving new meaning to existing operator

41 / 50

Identify the incorrect statement.

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

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

iostream is a non-standard header

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

42 / 50

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

43 / 50

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

cpp

44 / 50

Constructors are used to ____________

construct the data members

initialize the objects

delete the objects

both initialize the objects & construct the data members

45 / 50

Identify the correct statement.

typedef create own types

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

typedef will not creates synonyms of existing types

typedef create different types

46 / 50

Which of the following is a valid class declaration?

public class A { }

object A { int x; };

class A { int x; };

class B { }

47 / 50

Which category of data type a class belongs to?

User defined derived data type

Fundamental data type

Atomic data type

Derived data type

48 / 50

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

internal linkage

internal & external linkage

external linkage

no linkage

49 / 50

Pick out the other definition of objects.

member of the class

instance of the class

associate of the class

attribute of the class

50 / 50

Pick the other name of operator function.

object overloading

function overloading

member overloading

operator overloading

Provide Your Information

NameEmailPhone Number

Your score is

The average score is 0%