What is the Generic and non generic collections?

What is page life cycle in asp.net ?

What is “this” keyword in java?

What are the Oops concepts?

What is string and String ?

How can the ternary operators be used in python?

Hashing

In what scenarios will you use a abstract class and in what scenarios will you use a interface?

Difference between Method overriding and method hiding?

What is tight coupling?