Classes

What is the type of access specifier that the data member number fall under?

//a simple class

class test_example{

int number;

};

• Private

• Public

• Protected

• Default

Where can a protected data member be accessed?

• Within the same class

• Outside of the class

• Within the derived class

• Both within and outside the class

The concept of handling complexity by hiding the details of a class from theuser is known as:

• Inheritance

• Polymorphism

• Abstraction

• Encapsulation

How is the template of a class different from a normal class?

• Class template generates objects of classes based on the template type.

• Compiler generates classes for only the used types.

• Class template helps in making generic classes.

• All of the above

Which of the following means "The use of an object of one class in definition of another class", providing a Has-A relationship?

• Encapsulation

• Composition

• Inheritance

• Abstraction

What does inheritance allow in a program?

• Class reusability

• Creating a hierarchy of classes

• Extendibility

• All of the above

What will be the output of the following C++ code?

• Created

  Destroyed

• Destroyed

  Created

• Compile-time error

• Run-time error

What is the output of the following program?

• Base

• Derived

• Compilation error

• None of the above

What will be the output of the following C++ code?

• 20

• 10

• 20

  10

• 30