Master Hibernate and JPA with Spring Boot in 100 Steps - Step 74 - Hibernate and JPA Caching-Second-Level Cache Part 2

The video tutorial explains how to configure Hibernate to use Ehcache for caching, focusing on enabling second level cache for specific entities. It demonstrates setting up logging, enabling caching for course details, and analyzing JDBC statements. The tutorial covers cache hits and misses, and how Ehcache updates the cache. It concludes with a summary of caching concepts, emphasizing the importance of deciding what data to cache.

What is the primary purpose of enabling logging for Ehcache?

• To monitor and debug caching activities

• To disable caching for specific entities

• To increase the speed of data retrieval

• To reduce the size of the cache

Why might you choose to cache course details in the application?

• Because they change frequently

• To avoid retrieving them from the database every time

• To ensure they are always up-to-date

• Because they are not important

What annotation is used to enable caching for an entity in Hibernate?

• @Cacheable

• @Entity

• @Cache

• @EnableCaching

What does an L2C hit indicate in the context of caching?

• Data was not found in the cache

• Data was successfully retrieved from the cache

• Data was updated in the cache

• Data was removed from the cache

What happens when there is an L2C miss?

• The data is deleted from the cache

• The data is ignored

• The data is retrieved from the database and not cached

• The data is retrieved from the database and cached

What is the main difference between first-level and second-level cache?

• First-level cache requires manual configuration, second-level does not

• First-level cache is faster than second-level cache

• First-level cache is specific to a session, second-level is shared across sessions

• First-level cache is shared across sessions, second-level is not

What is the most crucial aspect of using a second-level cache?

• Disabling the first-level cache

• Ensuring all data is cached

• Increasing the cache size

• Deciding what data to cache