Foxtel Group Software Developer interview questions

1. Why needed Rest API and what are the mothods and describe 2. How to do Authorization and Authentication is Spring Security 3. What is View Resolver? 4. How to return a JSON with the response of Spring? 5. What are the Hibernate Save and Persist methods differeces 6. What is Session in Hibernate? 7. try/catch in Java 8. try/catch with a resource in Java 9. Java 8 features. 10. In Rest API Stateful/ Statelss ? 11. What problem could have occur in stateless http requests?