1Z0-895：最新的Oracle認證1Z0-895考題，Java EE 6 Enterprise JavaBeans Developer Certified Expert認證

問題1
A developer creates a stateless session bean, EmployeeServiceBean, and its interface, EmployeeService. The session bean uses two annotated entity classes, Employee.class and Department.class.
Which two package options can the developer use when creating a deployable EAR? The proposed directory structure is listed for each option. (Choose two)

A. Emp.ear emp-ejb.jar persistence.xml Employee.class
Department.class EmployeeService.class EmployeeServiceBean.class

B. Emp.ear emp-ejb.jar META-INF/persistence.cml Employee.class Department.class EmployeeService.class EmployeeServiceBean.class

C. Emp.ear emp-ejb.jar META-INF/persistence.xml EmployeeService.class EmployeeServiceBean.class lib/emp-classes.jar Employee.class Department.class

D. Emp.ear META-INF/orm.xml EmployeeService.class EmployeeServiceBean.class Employee.class Department.class

正確答案: B,C

問題2
Which is a correct way to define a runtime exception as an EJB 3.x application exception?

A. public class MyAppException extends javax.lang.EJBException

B. @ApplicationException public class MyAppException extends javax.lang.EJBException

C. @ApplicationException public class MyAppException extends javax.ejb.EJBException

D. public class MyAppException extends javax.ejb.EJBException

正確答案: C

說明：（僅 PDFExamDumps 成員可見）

問題3
A developer implements a session bean which acts as a session facade for an application. This means that clients will only see this session bean's interface which offers the application interface, where are three distinct roles known at development time: "user", "admin", and "guest". The majority of the methods will be used by role "user". All methods must have role permissions active and roles may be added or changed in the future.
Which two scenarios are correct? (Choose two.)

A. The developer defines a method permission with method name "*" and role "user" and adds individual method permissions for the methods used by roles "guest" and "admin" in the deployment descriptor.

B. The developer defines individual method permissions for the methods used by roles "user "guest", and "admin" In the deployment descriptor.

C. The developer annotates the bean class with @PermitAll and annotates the methods used by role "guest" or "admin" individually.

D. The developer annotates the bean class with @DenyAll and annotates the methods used by role "user", "guest", or "admin" individually.

E. The developer annotates the bean class with @RolesAllowed("user") and annotates the methods used by role "guest" or "admin" individually.

正確答案: A,E

問題4
Given a session bean defines:
11.
@Stateless (name = "MrBean")
12.
public class source SecureBean implements local business, remoteBusiness {
Where LocalBusiness is a local business interface and RemoteBusines is a remote business interface.
The following deployment descriptor entries represent the only security-related metadata: Which is true about the security roles of clients MrBean?

A. Only LocalBusiness clients must be in role

B. Both LocalBusiness and RemoteBusiness clients must NOT be in role A.

C. Both LocalBusiness and RemoteBusiness Clients must be in role A.

D. Only LocalBusiness clients must be in role

正確答案: C

問題5
Which two are true about the client view of a message-driven bean? (Choose two.)

A. Clients of a message destination need to know that the destination is listened to by a pool of message consumers,

B. References to message destinations can be infected.

C. References to message destinations cannot be looked up in the client's JNDI namespace.

D. Clients of a message destination do NOT need to know that the destination is listened to by a message-driven bean.

正確答案: B,D

問題6
You are writing an EE component that functions as a message producer. The message producer sends message to a JMS queue. The component environment defines a resource-ref of type javax.jms.ConnectionFactory with the same jms/ConnectionFactory.
Which will correctly obtain a connection factory for a queue?

A. Context context = new initialContext();
Connectionfactory confac = (ConnectionFactory) Context.lookup
("java: comp/env/jms/ConnectionFactory");

B. InitialContext Context = new Context () ;
QueueConnectionFactory confac = (QueueConnectionFactory) context.lookup
("java: comp/env/jms/Myfactory");

C. @Resource ("ConnectionFactory") private static QueueConnectionFactory confac;

D. @Resource (loopkup = "jms/QueueConnectionFactory") private static ConnectionFactoryconfac;

正確答案: A

問題7
A developer creates a stateful session bean that is used by many concurrent clients. The clients are written by other development team; and it is assumed that these clients might not remove the bean when ending their session. The number of concurrent sessions will be greater than the defined bean cache size.
The developer must consider that the state of the session bean can be influenced by either passivation or timeout.
Which three actions should the developer take to make the bean behave correctly in passivation and timeout situations? (Choose three.)

A. Release references to resources in a @PreDestroy annotated method.

B. Release references to resources in a @Remove annotated method.

C. Re-establish references to resources in a @PostActivate annotated method.

D. Release references to resources in a @PrePassivate annotated method.

E. Re-establish references to resources in an @Init annotated method.

正確答案: A,C,D

問題8
Given an JMS message-driven bean, which statement is true about its exception handling?

A. Its message listener method can throw any checked exception except java.rmi.RemoteException.

B. Its message listener method must NOT throw any checked exception.

C. Its message listener method can throw java.rmi.RemoteException.

D. Its message listener method can throw any checked exception that implements java.io.Serializable.

正確答案: B

問題9
You are writing a client that sends a message to a JMS queue. The client includes the following code snippet:

A. In the first line, the argument to the createProducer method needs to be cast to a Destination.

B. The message can be consumed by durable subscriber.

C. The message is sent using non-default deliver mode, priority, and expiration time values.

D. You could add more name-value pairs to the message body of the MapMessage if they were required by your application.

正確答案: D

說明：（僅 PDFExamDumps 成員可見）

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