Hibernate Framework Hibernate Performance Tuning

Question 1

Which Hibernate feature allows bulk loading of lazy collections more efficiently?

Accepted Answer

Batch fetching with @BatchSize

Answer

Eager loading with FetchType.EAGER

Answer

Named queries

Answer

Second-level cache

Question 2

What is a StatelessSession in Hibernate?

Accepted Answer

A session without a first-level cache for bulk data operations

Answer

A session that cannot persist data

Answer

A read-only session

Answer

A session for schema operations

Question 3

Which Hibernate feature improves bulk INSERT performance?

Accepted Answer

JDBC batch inserts via hibernate.jdbc.batch_size

Answer

Second-level cache

Answer

Lazy loading

Answer

Connection pooling

Question 4

What does FetchType.EAGER do to query performance?

Accepted Answer

Can cause excessive data loading and degrade performance with large datasets

Answer

Always improves performance

Answer

Reduces the number of queries

Answer

Has no performance impact

Question 5

What is the purpose of database connection pooling in Hibernate?

Accepted Answer

Reuses existing database connections to avoid the overhead of creating new ones

Answer

Stores query results in memory

Answer

Manages multiple databases simultaneously

Answer

Batches SQL statements

Question 6

Which strategy avoids the N+1 problem without changing the entity fetch type globally?

Accepted Answer

Using JOIN FETCH in HQL for specific queries

Answer

Setting all associations to EAGER

Answer

Enabling the second-level cache

Answer

Using StatelessSession