Basics Concepts of C++ Quiz 1

1 / 50

How structures and classes in C++ differ?

Structures by default hide every member whereas classes do not

In Structures, members are public by default whereas, in Classes, they are private by default

In Structures, members are private by default whereas, in Classes, they are public by default

Structures cannot have private members whereas classes can have

2 / 50

Which members are inherited but are not accessible in any case?

Public

Both private and protected

Protected

Private

3 / 50

C++ is ______________

functional programming language

procedural programming language

object oriented programming language

both procedural and object oriented programming language

4 / 50

What are the actual parameters in C++?

Variables other than passed parameters in a function

Parameters with which functions are called

Parameters which are used in the definition of a function

Variables that are never used in the function

5 / 50

Which of the following cannot be a friend?

Class

Operator function

Object

Function

6 / 50

What are the formal parameters in C++?

Parameters with which functions are called

Variables other than passed parameters in a function

Variables that are never used in the function

Parameters which are used in the definition of the function

7 / 50

Which of the following is correct in C++?

Class members are public by default

Structures can have member functions

Classes cannot have protected data members

Structure members are private by default

8 / 50

Which of the following is not a type of Constructor?

Default constructor

Copy constructor

Friend constructor

Parameterized constructor

9 / 50

Which operator is overloaded for a cout object?

10 / 50

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

11 / 50

Which of the following is a static polymorphism mechanism?

Templates

All of the mentioned

Operator overloading

Function overloading

12 / 50

Which of the following is correct?

C++ allows static type checking

C++ allows static member function to be of type const.

C++ allows dynamic type checking.

C++ allows both static and dynamic type checking

13 / 50

Why references are different from pointers?

A reference cannot be made null

A reference cannot be changed once initialized

No extra operator is needed for dereferencing of a reference

All of the mentioned

14 / 50

A language which has the capability to generate new data types are called ________________

Extensible

Encapsulated

Reprehensible

Overloaded

15 / 50

Which of the following is the correct syntax of including a user defined header files in C++?

#include ?userdefined?

#include [userdefined]

#include <userdefined>

#include <userdefined.h>

16 / 50

What does modularity mean?

Wrapping things into single unit

Hiding part of program

Overriding parts of program

Subdividing program into small independent parts

17 / 50

1. How compile-time polymorphisms are implemented in C++?

Using Templates

Using Inheritance and Virtual functions

Using Inheritance

Using Virtual functions

18 / 50

Who created C++?

Dennis Ritchie

Brian Kernighan

Ken Thompson

Bjarne Stroustrup

19 / 50

What are the escape sequences?

Set of characters that are used in the name of the main function of the program

Set of characters that are avoided in cout statements

Set of characters that whose use are avoided in C++ programs

Set of characters that convey special meaning in a program

20 / 50

Which concept is used to implement late binding?

Operator functions

Static functions

Virtual functions

Constant functions

21 / 50

Which of the following escape sequence represents carriage return?

22 / 50

Which of the following approach is used by C++?

Bottom-up

Left-right

Top-down

Right-left

23 / 50

Wrapping data and its related functionality into a single entity is known as _____________

Polymorphism

Encapsulation

Modularity

Abstraction

24 / 50

Which of the following explains the overloading of functions?

Virtual polymorphism

Transient polymorphism

Ad-hoc polymorphism

Pseudo polymorphism

25 / 50

Which function is used to read a single character from the console in C++?

scanf(ch)

getline(ch)

read(ch)

cin.get(ch)

26 / 50

How access specifiers in Class helps in Abstraction?

Abstraction concept is not used in classes

They help in keeping things together

They allows us to show only required things to outer world

They does not helps in any way

27 / 50

Which concept means the addition of new components to a program as it runs?

Data hiding

Dynamic loading

Dynamic typing

Dynamic binding

28 / 50

Which function is used to write a single character to console in C++?

cout.putline(ch)

write(ch)

cout.put(ch)

printf(ch)

29 / 50

Which of the following is called extraction/get from operator?

30 / 50

1. Which of the following escape sequence represents tab?

31 / 50

How run-time polymorphisms are implemented in C++?

Using Inheritance

Using Virtual functions

Using Templates

Using Inheritance and Virtual functions

32 / 50

Which of the following is used to make an abstract class?

By using an abstract keyword in front of a class declaration

By declaring a pure virtual function in a class

By declaring a virtual function in a class

By using virtual keyword in front of a class declaration

33 / 50

Which of the following is an abstract data type?

class

float

string

int

34 / 50

Which of the following is not a type of inheritance?

Multiple

Multilevel

Hierarchical

Distributive

35 / 50

Which of the following is called address operator?

36 / 50

Out of the following, which is not a member of the class?

Friend function

Static function

Virtual function

Constant function

37 / 50

What is the other name used for functions inside a class?

Class functions

Member functions

Member variables

Class variables

38 / 50

Which of the following is correct?

A derived class cannot have pointer objects

A base class cannot have pointer objects

Base class pointer object cannot point to a derived class object

Derived class pointer object cannot point to a base class object

39 / 50

Which of the following is a correct identifier in C++?

7VARNAME

VAR_1234

7var_name

$var_name

40 / 50

Which of the following provides a programmer with the facility of using object of a class inside other classes?

Encapsulation

Composition

Inheritance

Abstraction

41 / 50

What does polymorphism in OOPs mean?

Concept of hiding data

Concept of wrapping things into a single unit

Concept of keeping things in differnt modules/files

Concept of allowing overiding of functions

42 / 50

Which of the following is correct?

All of the mentioned

Friend functions can access public members of a class

Friend functions can access protected members of a class

Friend functions can access private members of a class

43 / 50

Which of the following class allows to declare only one object of it?

Abstract class

Virtual class

Singleton class

Friend class

44 / 50

Which of the following shows multiple inheritances?

B->A

A,B->C

A->B->C

A->B; A->C

45 / 50

Which of the following supports the concept that reusability is a desirable feature of a language?

It decreases the compilation time

It reduces maintenance cost

It reduced both testing and maintenance time

It reduces the testing time

46 / 50

Which of the following cannot be used with the virtual keyword?

Destructors

Class

Constructors

Member functions

47 / 50

Which concept allows you to reuse the written code?

Polymorphism

Encapsulation

Abstraction

Inheritance

48 / 50

Which of the following is called insertion/put to operator?

49 / 50

What happens if a class does not have a name?

It will not have a constructor

It will neither have a constructor or destructor

It will not have a destructor

It is not allowed

50 / 50

Which of the following is used for comments in C++?

// comment */

both // comment or /* comment */

/* comment */

// comment

Provide Your Information

NameEmailPhone Number

Your score is

The average score is 72%