1Z0-895 무료 덤프문제 온라인 액세스

A Java EE application server has four different security realms for user management. One of the security realms is custom made. This realm supports only individual user entries, no grouping of users, and is used by the application. Which two statements are true? (Choose two.)

• A.All security roles need a role-link entry in the deployment descriptor.
• B.The annotation @RunAs("AAA") can still be used for this application.
• C.EJB developers cannot use the isCallerInRole method.
• D.All security roles can be mapped successfully to individual users in the realm.

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.2
• C.0

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 A
• C.Option C
• D.Option D

Which must result in the destruction of a stateful session bean?

• A.The stateful session bean participates in a transaction that is rolled back.
• B.The stateful session bean is chosen as a last recently used (LRU) victim for passivation.
• C.A client calls an @Remove method and the method returns successfully.
• D.The server in which the stateful session bean was created is restarted.

A developer writes a Singleton bean that holds state for a single coordinate: An update thread acquires an EJB reference to CoordinateBean and alternates between invoking SetCoordinate (0, 0) and SetCoordinate (1, 1) in a loop.

At the same time, ten reader threads each acquire an EJB reference to CoordinateBean and invoke getCoordinate () in a loop.
Which represents the set of all possible coordinate values [X, Y] returned to the reader threads?

• A.[1, 1]
• B.[0, 0], [1, 1]
• C.[0, 0], [0, 1], [1, 0], [1, 1]
• D.[0, 0]