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시험 이름: Oracle Application Grid Essentials
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Q&A: 73 문항 1Z0-523 pdf
업데이트: 2014-05-15
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시험 이름: Java Enterprise Edition 5 Business Component Developer Certified Professional Upgrade Exam
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Q&A: 152 문항 1Z0-861시험덤프
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NO.1 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 @ld 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 @ldClass annotation to denote the primary
key field or property in the entity.
C. Use a separate @Embeddable class to map those two columns and use an @Embeddedld annotation
to denote a single primary key field or property in the entity.
D. Use a separate @Embeddable class to map those two columns and add two fields or
properties to the entity, each marked as @ld, 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 @ldClass annotation on the
entity class. Add two fields or properties to the entity, each marked as @ld, that correspond to the fields or
properties in that separate class.
Answer: C,E
Oracle최신버전덤프 1Z0-861덤프자료 1Z0-861시험후기 1Z0-861최신덤프 1Z0-861
NO.2 A developer writes two session beans which cooperate. The first session bean, ShoppingCart, collects
orders and is implemented as a stateful session bean. The second session bean, CalculateDiscount, is
implemented as a stateless session bean and runs on a different server. ShoppingCart contains the
method getTotalPrice, which calculates the total price of the order in the ShoppingCart, including
discounts. Discounts are calculated by CalculateDiscount using the information on the ShoppingCart
bean, combined with data from a database. Which scenario can accomplish this?
A. The CalculateDiscount offers a method calculate which is invoked by the ShoppingCart bean passing
the this reference.
B. The CalculateDiscount offers a method calculate which is invoked by the ShoppingCart bean.
CalculateDiscount accesses the ShoppingCart instance by JNDI lookup.
C. The CalculateDiscount offers a method calculate which is invoked by the ShoppingCart bean passing
its reference obtained from the SessionContext.getBusinessObject method.
D. The CalculateDiscount offers a method calculate which is invoked by the ShoppingCart bean.
CalculateDiscount accesses the state of ShoppingCart by dependency injection.
Answer: C
Oracle 1Z0-861 1Z0-861 PDF 1Z0-861 1Z0-861자료
NO.3 A developer writes an enterprise application and packages it into an .ear file. The application contains
two persistence units defined at the .ear level with persistence unit names FooPU and BarPU. The
application also contains an ejB. jar with one stateless session bean. Which code, when added to the
stateless session bean class, injects an EntityManagerFactory at runtime?
A. @PersistenceUnit
private EntityManagerFactory emf;
B. @PersistenceContext
private EntityManagerFactory emf;
C. @PersistenceUnit(unitName="BarPU")
private EntityManagerFactory emf;
D. @Resource(name="BarPU",type=EntityManagerFactory.class)
private EntityManagerFactory emf;
Answer: C
Oracle dumps 1Z0-861기출문제 1Z0-861응시료
NO.4 XYZ Software develops business components using both the EJB 2.1 and EJB 3.0 APIs. Some
customers are reluctant to completely migrate to the EJB 3.0 model, but are willing to have EJB 2.1
session beans invoke EJB 3.0 session beans.
How should XYZ Software enhance these components to meet this customer requirement?
A. Use @EJB to inject a reference to the EJB 3.0 business interface into the EJB 2.1 bean class.
B. Use <ejB. ref> in ejB. jar.xml for the EJB 2.1 bean to declare a reference to the EJB 3.0
business interface.
C. Add an EJB 3.0-style business interface to EJB 2.1 beans to achieve interoperability between EJB 2.1
and EJB 3.0 beans.
D. Use @RemoteHome and @LocalHome to adapt EJB 3.0 beans so that EJB 2.1 beans can look up the
adapted home interfaces using JNDI.
Answer: D
Oracle IT덤프 1Z0-861시험후기 1Z0-861 IT국제자격증 1Z0-861
NO.5 A stateful session bean contains a number of instance variables. The types of instance variables A and
B are NOT serializable. Instance variable B is a complex type which is populated by many business calls,
and can, therefore, NOT be refilled by the client without starting all over. A helper instance variable C is
defined as having a Serializable type, and can hold all the information which is in variable B. For example,
B is of type XML-DOM Tree and C of type String. Which two solutions, when combined, maintain the state
of the session bean over a passivation and activation by the container? (Choose two.)
A. The value of helper variable C is used to create the value of instance variable B in the beans no-arg
constructor.
B. The value of helper variable C is used to create the value of instance variable B in a
@PostCreate annotated method.
C. The value of helper variable C is used to create the value of instance variable B in a
@PostActivate annotated method
D. Instance variable A must be made null and instance variable B must be converted to a
Serializable type and assigned to another instance variable in a @PreDestroy annotated method.
E. Instance variable A must be defined transient. Instance variable B must be converted to a Serializable
type, set to null, and assigned to the instance variable C in a @PrePassivate annotated method.
Answer: C,E
Oracle 1Z0-861 1Z0-861국제공인자격증 1Z0-861최신버전덤프 1Z0-861
NO.6 A developer wants to create a business interface for both local and remote usage. For
performance reasons the remote interface should NOT be called by a client in the same JVM.
Which statement is required to accomplish this, assuming there is no deployment descriptor?
A. The business methods are defined in one interface which must be annotated with both @Local and
@Remote.
B. The business methods are defined twice in one interface. One method is annotated with @Local and
the other is annotated with @Remote.
C. The business methods are defined in a common interface by two other interfaces which are annotated
with @Local and @Remote respectively. The bean implements the super interface.
D. The business methods are defined in a common interface. It is extended by two interfaces, annotated
with @Local and .Remote respectively. Both interfaces are implemented by the bean class.
Answer: D
Oracle시험자료 1Z0-861 1Z0-861최신버전덤프 1Z0-861인증
NO.7 A User entity is in a onE. to-many relationship with a Book entity.
A developer writes a query to delete users that have a first name of 'Fred' or 'Ginger', and writes the
following Java Persistence query language statement:
DELETE FROM User u WHERE u.name IN ('Fred1, 'Ginger')
If the query fails with a PersistenceException, what can be the cause?
A. The syntax of the query is NOT correct.
B. The query causes a foreign key integrity constraint to be violated.
C. The database does NOT have any users with the name 'Fred' or 'Ginger'.
D. The entities corresponding to the users with the name 'Fred' or 'Ginger' are already being managed by
the persistence context.
Answer: B
Oracle 1Z0-861후기 1Z0-861자료 1Z0-861
NO.8 A developer maps the abstract entity class Account with concrete entity suB. classes
CreditCardAccount and SavingsAccount using the single table per class hierarchy strategy. Which two
statements are true? (Choose two.)
A. Instances of CreditCardAccount and SavingsAccount are stored in the same table.
B. All columns that correspond to fields declared in Account must be defined as nullable in the database.
C. The fields declared in Account are stored in a different table than the ones declared in
CreditCardAccount and SavingsAccount.
D. All columns that correspond to fields declared in CreditCardAccount or SavingsAccount must be
defined as nullable in the database.
Answer: A,D
Oracle자격시험 1Z0-861자료 1Z0-861시험문제 1Z0-861인증
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