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Code d'Examen: 1Z0-803
Nom d'Examen: Oracle (Java SE 7 Programmer I )
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Code d'Examen: 1Z0-516
Nom d'Examen: Oracle (Oracle EBS R12.1 General Ledger Essentials)
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Code d'Examen: 1Z0-861
Nom d'Examen: Oracle (Java Enterprise Edition 5 Business Component Developer Certified Professional Upgrade Exam)
Questions et réponses: 152 Q&As
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NO.1 Which two statements are true? (Choose two.)
A. All types of enterprise beans can be transaction-aware
B. Typically, finE. grained objects, such as an employee record, should be remotely accessible.
C. The client view of any given enterprise bean will be consistent across all EJB 3.0 containers without the
need to recompile the bean.
D. As long as a given enterprise bean is NOT recompiled, its security attributes are guaranteed to be
consistent across all EJB 3.0 containers in which it is deployed.
Answer: A,C
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NO.2 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
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NO.3 A Java EE 5 application contains a session bean which uses a security role USER. A group called
people is defined in an LDAP server. Which two define appropriate EJB role responsibilities? (Choose
two.)
A. The deployer defines and configures the LDAP realm.
B. The system administrator defines and configures the LDAP realm.
C. The deployer maps the application role USER to the LDAP group people
D. The system administrator maps the application role USER to the LDAP group people.
Answer: B,C
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NO.4 Your application uses the Java Persistence API to access a database. This application must reject
adding an instance to the database if it does NOT pass validation tests for values of two persistence
properties. The database contains some data that will NOT pass such validation. Only the new records
must be validated. Which option will achieve this behavior?
A. Add validation logic to the setter methods for each property.
B. Add the PrePersist callback method with all of the validation logic.
C. Add the PostPersist callback method with all of the validation logic.
D. Add PrePersist and PreUpdate callback methods with all of the validation logic.
Answer: B
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NO.5 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
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NO.6 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
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NO.7 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
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NO.8 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
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