Earning the Oracle Java EE 6 Java Persistence API Developer Certified Expert credential signals skills that employers recognize worldwide, which is exactly why the 1Z0-898 exam is worth preparing for properly. Fast2test builds its 63 practice questions around the official outline, so your effort goes into topics that actually get tested.

Oracle 1Z0-898 Exam Overview:

Oracle 1Z0-898 Exam Syllabus Topics:

Everything You Want to Know About the Oracle Java EE 6 Java Persistence API Developer Certified Expert (1Z0-898) Exam

Oracle Java EE 6 Java Persistence API Developer Certified Expert Sample Questions:

Question 1

The developer wants to define a unidirectional relationship from the customer entity to the order entity and map this relationship using a foreign key mapping strategy.
Which one of the pairs of classes below correctly achieves this task?

A. @Entity public class Customer {
@Id int customerId;
@OneToMany (JoinColumn = @joinColumn (name = "CUST_ID") Set <Order> orders;
. . .
}
@Entity public class order {
@Id int orderId;
. . .
}
B. @Entity public class Customer {
@Id int customerId;
@OneToMany Set <Order> orders;
. . .
}
@Entity
@JoinColumn (names = "CUST-ID", referencedColumnName = "customerId")
public class order {
@Id int order Id;
. . .
}
C. @Entity public class Customer {
@Id int customerId;
@OneToMany @JoinColumn (name = "CUST_ID") Set <Order> orders;
. . .
}
@Entity public class order {
@Id int orderId;
. . .
}
D. @ Entity public class Customer {
@Id int customerId;
@OneToMany (JoinColumn = @JoinColumn (name = "CUST_ID"), table = ""ORDER) Set
<Order> orders;
. . .
}
@Entity public class order {
@Id int orderId;
. . .
}

Question 2

A user entity is retrieved in a query and stored in an instance variable user. The user entity has a single valued name property that uses the mapping defaults, and a photo property, which is lazily loaded. The application then calls the following method:
PersistenceUtil.isLoaded (user);
Which two of the following statements are correct?

A. The photo property was NOT loaded from the database.
B. The name property may or may not have been loaded from the database.
C. The photo property may or may not have been loaded from the database.
D. The photo property was loaded from the database.
E. The name property was NOTbeloaded from the database.
F. The name property was loaded from the database.

Question 3

A session bean business method throws an exception during execution.
Which two are responsibilities of the Bean Provider when throwing the exception? (Choose two.)

A. For application exceptions, ensure that the current transaction will commit.
B. For application exceptions, ensure that ifthe current transaction commits there will be noloss ofdata integrity.
C. For system errors, when the client is remote through a java.rmi.remoteException that wraps the original exception.
D. For checked exceptions from which the bean cannot recover, throw an EJBException that wraps the original exception.

Question 4

Which EntityManager API will lock entity x with a pessimistic lock?

A. em.lock(x, LockModeType.OPTIMISTIC_FORCE_INCREMENT)
B. em.lock(x, LockModeType.PESSIMISTIC_READ)
C. em.lock(x, LockModeType.WRITE)
D. em.lock(x, LockModeType.PESSIMISTIC)

Question 5

Consider a persistence application with the following orm.xml:

What will be the effect of the above orm.xml?

A. The access type for allentities specified in this orm.xmlwill be changed to FIELD.
B. The access type for only those entities that have not explicitly specified @Access will be defaulted to field.
C. The access type for all entities in the persistence unit will be changed to FIELD.
D. The access type for only those entities defined in thisorm-xml for which access is notspecified will be defaulted to FIEL

Solutions: