Q1. What are different types of associations in Hibernate ?
Ans. There are 4 types of associations in Hibernate
One to One
One to Many
Many to One
Many to Many
Q3. What is Lazy Initialization in Hibernate ?
Ans. It's a feature to lazily initialize dependencies , relationship and associations from the Database. Any related references marked as @OneToMany or @ManyToMany are loaded lazily i.e when they are accessed and not when the parent is loaded.