Pregunta de entrevista de NJ Technologies

Second Round Questions 1. What is java 2. What are access modifiers 3. What is synchronisation 4. What is exception handling in java 5. Difference between throws and try-catch 6. What is indexing in SQL DB 7. Perform minus operation using join in sql 8. What is On Delete CASCADE in SQL 9. What happens if exception occurs in Finally block. 10. What is indexing in database and how does it help reducing time in querying. 11. What is Spring MVC 12. What is MVC and why it is necessary 13. What is set and arraylist