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Welcome to the Data Access and Web Services MCQs Page

Dive deep into the fascinating world of Data Access and Web Services with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Access and Web Services, a crucial aspect of Java Spring Framework. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Access and Web Services, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Spring Framework.

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Check out the MCQs below to embark on an enriching journey through Data Access and Web Services. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Spring Framework.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Access and Web Services. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Access and Web Services MCQs | Page 5 of 18

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Q41.
The direct parent class of DataAccessException is:-

a.

RuntimeException

b.

NestedRuntimeException

c.

Exception

d.

Throwable

Discuss
Answer: (b).NestedRuntimeException
Q42.
Which concrete exception in the DataAccessException hierarchy should be thrown?

a.

errorCode

b.

SQLState properties of the caught SQLException

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (c).All of the mentioned
Q43.
Error code for The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint.

a.

-1

b.

0

c.

23505

d.

1

Discuss
Answer: (a).-1
Q44.
How does the Spring JDBC framework know that state 23505 should be mapped to DuplicateKeyException?

a.

error code

b.

SQL state

c.

all of the mentioned

d.

none of the mentioned

Discuss
Answer: (c).all of the mentioned
Q45.
Class which represents a real-world entity and its instances will be persisted to a database.

a.

entity

b.

persistent

c.

all of the mentioned

d.

none of the mentioned

Discuss
Answer: (c).all of the mentioned
Q46.
Each entity class to be persisted by an ORM framework, a default constructor with no argument is required.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q47.
If the identifier value is null, this entity will be treated as a new and unsaved entity.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q48.
To allow the identifier to be null, you should choose a primitive wrapper type:-

a.

java.lang.Integer

b.

java.lang.Long

c.

all of the mentioned

d.

none of the mentioned

Discuss
Answer: (c).all of the mentioned
Q49.
A set of persistent annotations for you to define mapping metadata.

a.

JPA

b.

JSR

c.

XML

d.

None of the mentioned

Discuss
Answer: (a).JPA
Q50.
For mapping and persisting your objects with Hibernate and JPA.

a.

Using the Hibernate API to persist objects with Hibernate XML mappings

b.

Using the Hibernate API to persist objects with JPA annotations

c.

Using JPA to persist objects with JPA annotations

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Page 5 of 18

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