Mphasis Abstraction and Encapsulation Quiz 1

Exception handling is not a part of OOPs concept.Hence option(D) is the correct option.

Wrapping up of data into a single unit is known as encapsulation.

An IS-A relationship is inheritance. The classes which inherit are known as sub classes or child classes. On the other hand, the HAS-A relationship is composition. In OOP, the IS-A relationship is completely inherited.

There are two types of polymorphism in OOPs:

1. Runtime Polymorphism 2. Compile-time Polymorphism

The concept of encapsulation can only ensure data security to some extent.

An interface can extend another interface but it cannot implement another interface.Hence option (B) is false.

It is always true as we have the facility of private and protected access specifiers. Also, only the public and global data are available globally or else the program should have proper permission to access the private data.

Super keyword is used by the subclass for invoking the superclass constructor.

A copy constructor is a member function that initializes an object using another object of the same class.

Features of reusability and extensibility is supported by inheritance so the correct answer is inheritance.