Hibernate_test

Q 1 - Which of the following database is not supported by Hibernate?

A - DB2/NT

B - MySQL

C - FoundationDB

D - PostgreSQL

Q 2 - Which of the following is true about configuration component of Hibernate?

A - The Configuration object is the first Hibernate object you create in any Hibernate application.

B - The Configuration object is usually created only once during application initialization.

C - The Configuration object represents a configuration or properties file required by the Hibernate.

D - All of the above.

Q 3 - Which method is used to remove a persistent instance from the datastore?

A - Session.saveOrUpdate()

B - Session.keep()

C - Session.update()

D - Session.load() Show Answer

Q 4 - Which method is used to save or update the state of the given instance from the underlying database?

A - Session.saveOrUpdate()

B - Session.keep()

C - Session.update()

D - Session.load()

Q 5 - Which of the following is true about element?

A - The element is used to map a Java class property to a column in the database table.

B - The name attribute of the element refers to the property in the class.

C - The column attribute of the element refers to the column in the database table.

D - All of the above.

Q 6 - What is the difference between save() and persist() methods of session object?

A - There is no difference.

B - save saves the object and returns status whereas persist stores status in different variable.

C - save saves the object and returns the id of the instance whereas persist do not return anything after saving the instance.

D - None of the above.

Q 7 - What is second level cache in hibernate?

A - The second-level cache is the SessionFactory based cache and is mainly responsible for caching objects across sessions.

B - The second-level cache is the Session based cache.

C - Both of the above.

D - None of the above.

Q 8 - Which of the following database is not supported by Hibernate?

A - Oracle

B - Microsoft SQL Server Database

C - FoundationDB

D - Informix Dynamic Server

Q 9 - Which of the following is true about @Id annotation?

A - Hibernate detects that the @Id annotation is on a field.

B - Hibernate assumes that it should access properties on an object directly through fields at runtime.

C - Both of the above.

D - None of the above.

Q 10 - Which of the following is true about @Table annotation?

A - The @Table annotation allows to specify the details of the table that will be used to persist the entity in the database.

B - The @Table annotation allows to override the name of the table, its catalogue, and its schema, and enforce unique constraints on columns in the table.

C - Both of the above.

D - None of the above.

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