Which of the following principles uses base and derived classes?

1. Encapsulation
2. Inheritance
3. Polymorphism
4. Data hiding

Read the following text and choose the correct answer:

Machine language is the form of computer language in which instructions are coded in terms of binary digits (bits), i.e., in the form of zeroes and ones (0's and 1's). The computer understands the machine code directly to be operated by the CPU.

Which is the most suitable statement for Machine language from the following?

1. It is one of the types of high level language.
2. It is directly understood by the users.
3. It is a machine dependent language.
4. It is easier to write the code in machine language.

Which of the following is a Procedure Oriented Programming language?

1. Java
2. C++
3. Pascal
4. Eiffel

What is the literal meaning of Polymorphism?

1. Using different operations for same purpose
2. Using same operation for different purposes
3. Using same data in different functions
4. None of them