Master Hibernate and JPA with Spring Boot in 100 Steps - Step 11 - Playing with Entity Manager

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of creating a playground method in the context of learning about the entity manager?
To test the performance of the entity manager
To explore and understand the functionalities of the entity manager
To replace the existing entity manager
To debug the entity manager
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main action performed in the simple test setup for the entity manager?
Triggering the 'play with entity manager' method
Creating a new database
Deleting existing data
Updating the entity manager
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to create a new entity in the database using the entity manager?
entityManager.update
entityManager.save
entityManager.persist
entityManager.merge
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you update an entity's name within a transaction managed by the entity manager?
The update is automatically tracked and persisted
The update is ignored
The update requires manual saving
The update is only temporary
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the @Transactional annotation in the context of the entity manager?
It ensures that all changes are tracked and persisted within a transaction
It disables the entity manager
It prevents any changes from being saved
It allows multiple transactions to occur simultaneously
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the entity manager handle changes to entities within a transaction?
It automatically tracks and persists changes
It ignores all changes
It requires manual intervention to track changes
It only tracks deletions
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the outcome when the 'play with entity manager' method is executed in the demo application?
A new course is created and its name is updated in the database
The database is deleted
No changes occur
The application crashes
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