C++ OOP Test - Sanfoundry

1. Which of the following explains Polymorphism?

 int func();
int new_func();

int func(int, int);
float func1(float, float);

int func(int);
int func(int);

int func(float);
float func(int, int, char);

2. Which of the following shows multiple inheritances?

A,B->C

B->A

A->B; A->C

A->B->C

3. What does modularity mean?

Subdividing program into small independent parts

Hiding part of program

Wrapping things into single unit

Overriding parts of program

4. What does polymorphism in OOPs mean?

Concept of allowing overiding of functions

Concept of keeping things in differnt modules/files

Concept of hiding data

Concept of wrapping things into a single unit

5. Which of the following feature of OOPs is not used in the following C++ code?

class A
{
    int i;
    public:
    void print(){cout<<"hello"<<i;}
}

class B: public A
{
    int j;
    public:
    void assign(int a){j = a;}
}

Inheritance

Encapsulation

Polymorphism

Abstraction

6. Which concept allows you to reuse the written code?

Encapsulation

Abstraction

Inheritance

Polymorphism

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

Modularity

Encapsulation

Abstraction

Polymorphism

8. C++ is ______________

object oriented programming language

both procedural and object oriented programming language

functional programming language

procedural programming language

9. How structures and classes in C++ differ?

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

Structures by default hide every member whereas classes do not

Structures cannot have private members whereas classes can have

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

10. How access specifiers in Class helps in Abstraction?

Abstraction concept is not used in classes

They allows us to show only required things to outer world

They help in keeping things together

They does not helps in any way