OOP’S & Java Interview Questions

OOP’S & Java Interview Questions What are the principle concepts of OOPS? There are four principle concepts upon which object-oriented design and programming rest. They are: Abstraction Polymorphism Inheritance Encapsulation (i.e. easily remembered as A-PIE). What is Abstraction? Abstraction refers to the act of representing essential features without including the background details or explanations. What … Read more

DBMS Interview Questions Answers

Database Interview Questions

What is indexing and the different kinds of indexing? Indexing is a technique for determining how quickly specific data can be found.  Types: Binary search style indexing B-Tree indexing Inverted list indexing Memory resident table Table indexing What is the system catalog or catalog relation? How is it better known as? An RDBMS maintains a … Read more

Database Interview Questions Answers

Database Interview Questions

What is a database? A database is a logically coherent collection of data with some inherent meaning, representing some aspect of the real world and which is designed, built and populated with data for a specific purpose. What is DBMS? It is a collection of programs that enables the user to create and maintain a … Read more