I'm preparing for a Senior Java/Spring interview, and I'm currently reviewing Spring transactions. However, I'm a bit confused about how deeply I should study this topic.

• Spring transaction fundamentals

• @Transactional

• Transaction scope and boundaries

• Transaction propagation

• Rollback rules and when Spring rolls back a transaction

• Isolation levels

• How Spring manages transactions internally

These topics seem quite broad, and I'm not sure whether I should focus mainly on the core concepts or go deeper into Spring's internal implementation.