Is second level caching mandatory in hibernate?

Related questions

1. What is Redis cache used for?
2. What is lazy loading in hibernate?
3. What is terracotta DB?
4. What is the difference between lazy and eager loading in hibernate?
5. What is the difference between SessionFactory and session in hibernate?
6. What is ehcache in Java?
7. What is terracotta used for?
8. What does session evict () method do in hibernate?
9. What is in memory data grid?
10. What is terracotta clay?

Tags

1. #means
2. #session
3. #caching
4. #keeps
5. #level
6. #first
7. #consulted
8. #cache
9. #through
10. #extend
11. #application
12. #entities
13. #second
14. #default
15. #memory
16. #hibernate
17. #being
18. #allocated
19. #mandatory
20. #optional
21. #which
22. #always
23. #stores