Hibernate Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Hibernate Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Answer : B

Explaination

ORM stands for Object-Relational Mapping (ORM) is a programming technique for converting data between relational databases.

Answer : D

Explaination

Query objects use SQL or Hibernate Query Language (HQL) string to retrieve data from the database and create objects. A Query instance is used to bind query parameters, limit the number of results returned by the query, and finally to execute the query.

Answer : D

Explaination

You can make a transient instance persistent by associating it with a Session. A persistent instance has a representation in the database, an identifier value and is associated with a Session.

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

A - Session.store()

B - Session.keep()

C - Session.update()

D - Session.load()

Answer : C

Explaination

Session.update updates the state of the given instance from the underlying database.

Q 5 - Which of the following element maps java.util.Map property in hibernate?

A - <set>

B - <list>

C - <bag>

D - <map>

Answer : D

Explaination

java.util.Map property is mapped with a <map> element and initialized with java.util.HashMap.

Q 6 - Which of the following element is used to represent one-to-many relationship in hibernate?

A - <one-to-many>

B - <one-many>

C - <OneToMany>

D - None of the above.

Answer : A

Explaination

<one-to-many> element is used to define one-to-many association.

Answer : A

Explaination

The first-level cache is the Session cache and is a mandatory cache through which all requests must pass.

Q 9 - Persistent objects are saved and retrieved through a Session object.

A - false

B - true

Answer : B

Explaination

Persistent objects are saved and retrieved through a Session object.

Q 10 - length attribute of @Column annotation permits the size of the column used to map a value particularly for a String value.

A - false

B - true

Answer : B

Explaination

length attribute of @Column annotation permits the size of the column used to map a value particularly for a String value.

hibernate_questions_answers.htm

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