Hibernate Interview Questions

 1. What is ORM ?

2. What does ORM consists of ?

3. Why do you need ORM tools like hibernate?

4. What are the important tags of hibernate.cfg.xml?

5. Define the Hibernate Template?      

6. What are benefit does hibernate template provides?

7. What is hibernate proxy?

8. What is lazy fetching in hibernate ?

9. What are the core interfaces of the Hibernate ?

10. What are the different types of caches are available in hibernate?

11. What is difference between Load () and get () method? 

12. What are different types of caching strategies?

13. What are different types of fetching strategies?      
     
14. How do you define sequence generated primary key in hibernate?

15. What do you mean by named SQL query ?

16. How do you invoke stored procedures in Hibernate ?

17. What are the collections types in hibernate?

18 How do you explain criteria API.

19 what is component mapping ?

20 what is difference between update and  save method ?  

21 what is difference between Session.save() and Session.merge()?

22 .What  is  difference  between  save()  and persist() methods.  
22 what are the state of the object in the Hibernate?

23  what is automatic dirty checking ?

24   what is difference between First Level cache and Second Level cache ?

25   what is dirty checking in the Hibernate ? 

26  what  is generator  class in hibernate explain?.                  

27 what  is batch processing   in  Hibernate . How  Hibernate manage 
      large number of updates using batching processing ?

28 How query  level cash  works  in Hibernate ? 

29 How Hibernate 2nd level cache  works in Hibernate ? 

(ANZ ,DellEmc, Cognizent )

30 . Can we disable Hibernate  first level cache ?         (     ANZ , JPMC )

31 .Explain  Hibernate  properties   file ?     (   DEll, Infosys, JPMC, SG,WF )

32 . Details  about  Hibernate configuration class. (Capgemini , ITC,Philps ,LTI)

33 .What  is difference between   flush()  and evict() ; 
(Concentrix ,  Bristlecone , Intute , NTTdata)