1Z0-895 무료 덤프문제 온라인 액세스

Assume a client will be accessing a Singleton bean.
Which client views is a Singleton bean capable of exposing? (Choose two)

• A.Message listener
• B.EJB 3.x local business
• C.EJB 2.x Remote Home
• D.Web Service
• E.Java Persistence API entity

A stateful session bean contains a number of instance variables. The types of instance variables A and B are 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.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.
• D.The value of helper variable C is used to create the value of instance variable B in a @postActivate 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.

Assume you have been tasked with building an ejb-jar containing an EJB application. The EJB application contains local, remote, and web service end-point EJBs that provide reusable sevices within an enterprise. When the application is deployed, client will access the remote session beans using the global JNDI name java:ServiceLayer/<bean_name>. All of the EJBs are located in the com.acme.sevicelayer package and are deployed as class files. The application uses a mixture of deployment descriptor and annotation configuration.
Which JAR representation best represents deployed structure for the previous requirements?

• A.Option B
• B.Option C
• C.Option D
• D.Option A

A developer writes a stateless session bean FooBean with one remote business interface FooRemote containing one business method foo. Method foo takes a single parameter of application-defined type MyData.
11.
public class MyData implements java.io.Serialization {
12.
int a;
13.
}
Methods foo is implemented with the FooBean class as:
11.
public void foo (MyData data) {
12.
data.a = 2;
13.
}
Another session bean within the same application has a reference to FooRemote in variable fooRef and calls method foo with the following code:
11.
MyData data = new MyData();
12.
data.a = 1;
13.
fooRef.foo(data);
14.
System.out.printIn(data.a);
What is the value of data.a when control reaches Line 14 of the client?

• A.1
• B.0
• C.2

Given the following client-side code that makes use of the session bean Foo:
10. @EJB Foo bean1;
12. @EJB Foo bean2;
// more code here
20.
boolean test1 = beanl.equals(bean1);
21.
boolean test2 = beanl.equals(bean2) ;
Which three statements are true? (Choose three)

• A.If Foo is stateful, test1 is true, and test2 is true.
• B.If Foo is singleton, test1 is true, and test2 is true.
• C.If Foo is stateful, test1 is true, and test2 is false.
• D.If Foo is stateless, test1 is true, and test2 is false.
• E.If Foo is singleton, test1 is true, and test2 is false.
• F.If Foo is stateless, test1 is true, and test2 is true.