Zone24x7 interview questions

1. Define OOP 2. What's a class 3. What are access modifiers 4. Main principles of OOP 5. What's an abstract class 6. What's an interface 7. What is super keyword used for. 8. State management in React 9. How to get the state of a child component to a parent component 10. What's dependency injection 11. Gave 2 codes and asked questions from it. 12. Syntax of ternary operator 13. Asked me to explain the projects HR interview(20misns: 1. Tell me about yourself 2. What do u expect from zone24x7 3. About a situation where u showed leadership and handled a problem 4. Where do u see yourself in the future 5. Asked me to explain the nano-processor project 7. Any questions you have to ask

Differentiate bubble sort and merge sort