Spring boot annotation. What is JPA & Hibernate. What is the entity manager. Oops concept & java 8 features. Design pattern.

i have given 15 interviews for capgemini- 1. Describe yourself - don't start with your name,start with exp and role. 2. Project -Explain project when asked to. 3.Core Java(Features,Collection- internal working of hash map & hash set,linked list,multi threading). 4.Spring - basic questions. 5.Spring boot - basic questions. 5.database -basic questions. 6.Hibernate- Basic questions. 7.SQL-Inner join,outer join. 8.Exception -exception handling.