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JPA Interview Questions and Answers

Ques 1. What is JPA and its key components?

Ques 2. What is the difference between persistence.xml and hibernate.cfg.xml?

Ques 3. What is an EntityManager?

Ques 4. What is an Entity?

Ques 5. Why to use JPA?

Ques 6. What is Embeddable classes?

Ques 7. What is Persistent Fields?

Ques 8. What is Persistent Properties?

Ques 9. Explain Life Cycle of a JPA Entity.

Ques 10. What is JPQL?

Ques 11. Example of an Entity with Embedded class.

Ques 12. Give an example of Embeddable class for previous question Categoryparticipant entity.

Ques 13. Insert a record mechanism using JPA.

Ques 14. How to fetch a record using NamedQuery?