Technical interview questions.

Difference between c and cpp.
Difference between c and oop
What is oop?
What is object?
What are properties of cpp?
What is mean by pointer?
What is mean by preprocessor?
What is more effective,c or cpp?
What is mean by inheritance?
How for loop works?
How while works?
Difference between while and do while?
What is mean by array?
What is need of array?
Explanation about project.

These are some questions that you must prepare.