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시험 이름: Java Platform, Enterprise Edition 6 Java Persistence API Developer Certified Expert Exam
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시험 이름: Java Enterprise Edition 5 Enterprise Architect Certified Master Upgrade Exam
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NO.1 A developer has created a deep entity class hierarchy with many polymorphic relationships between
entitles.Which inheritance strategy, as defined by the inheritanceType enumerated type, will be most
performed in this scenario?
A.Single table-per-class-hierarchy (InheritanceType.SINGLE_TABLE)
B.Joined-subclass (inheritanceType.JOINED)
C.Table-per-concrete-class (inheritanceType.TABLE_PER_CLASS)
D.Polymorphic join table (inheritanceType.POLYMORPHIC_JOIN_TABLE)
Answer: C
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NO.2 Consider a persistence application with the following orm.xml:
What will be the effect of the above orm.xml?
A.The access type for only those entities that have not explicitly specified @Access will be defaulted to
field.
B.The access type for all entities in the persistence unit will be changed to FIELD.
C.The access type for allentities specified in this orm.xmlwill 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 FIELD.
Answer: D
Oracle시험문제 1Z0-898 1Z0-898 IT자격증
NO.3 Given:
Which statement is correct?
A.The method will return TRUE.
B.The method will return FALSE.
C.The method will throw an exception.
D.The order instance will be removed from the database.
Answer: C
Oracle시험정보 1Z0-898자격증시험 1Z0-898교육 1Z0-898
NO.4 A developer wrote an entity class with the following method:
Private static Logger logger = Logger.getLogger ( ° m yLogge¡± )
@PrePersist @PreUpdate Public void doA () { Logger.info ( ° ¡± ); } @ P o s t P ersis t @ P o s t U pd ate Pu b l ic v oi
doB () { logger.info ( ° ¡± );
What will the log message contain when an application does the following?
Begins a transaction
Creates the entity
Persists the entity
Commits the transaction
Begins the entity data
Modifies the entity data
Merges the entity
Commits the second transaction
A.A A B B
B.A B A B
C.A B B A B
D.The application will throw an exception because multiple lifecycle callback annotations applied to a
single method.
Answer: B
Oracle덤프자료 1Z0-898 1Z0-898 1Z0-898교재
NO.5 Entity lifecycle callback methods may be defined in which three classes.? (Choose three)
A.Embedded classes
B.Entity classes
C.Abstract classes
D.Entity listener classes
E.Mapped superclasses
F.Concrete non-entity superclasses
Answer: B,D,E
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NO.6 A developer wants to model the grades for a student as a Map<course, integer>.Assume that Student
and Course are entitles, and that grades are modeled by integers.
Which of the following two statements are correct? (Choose two)
A.The developer can model the grades as an element collection in the Student entity.
B.The developer can model the grades as a oneToMany relationship in the Student entity.
C.The mapping for the key of the map can be specified by the @MapKeycolumn annotation.
D.The mapping for the value of the map can be specified by the @Column annotation.
Answer: A,C
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NO.7 A developer is creating an entity which is mapped to a table that has a primary key constraint defined on
two character columns and would like to use mapping defaults as much as possible to simplify the code.
Which two mapping options can be chosen? (Choose two.)
A.Use an @id property that constructs a private field as a concatenation of two columns.
B.Use a separate class to map those two columns and use an @idclass annotation to denote I primary
key field or property in the entity.
C.Use a separate @Embeddable class to map those two columns and use an @EmbeddedId annotation
to denote a single primary key field or property in the entity.
D.Use a separate @Embeddable class to map those two column and add two fields or properties the
entity, each marked as @id, that correspond to the fields or properties in the embeddable class.
E.Use a separate class to map those two columns.Specify that class using @Idclass annotation on the
entity class.Add two fields or properties to the entity, each marked as @Id, that correspond to the fields or
properties in that separate class.
Answer: B,C
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NO.8 Given the following code:
Public void create () {
try {
doA () {
} catch (PersistenceException e) {} try (doB) ();
} catch (PersistenceException e) {}
}
Calling method doA will cause an NonUniqueResultException to be thrown.Calling method doB will cause
an EntityExistsException to be thrown.
What two options describe what will happen when the create method is called within an application ' uses
container managed transactions? (Choose two)
A.Method doB will never be called.
B.The current transaction will continue after doA executes.
C.The current transaction will continue after doB executes.
D.The current transaction will be marked for rollback when doA is called.
E.The current transaction will be marked for rollback when doB is called.
Answer: C,E
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