Given:
A stateless session bean's business method invokes EJBContext.setRollbackOnly and receives an Illegal StateExe option. Under which of these conditions could this be possible?
A. The business method is marked with the MANDATORY transaction attribute.
B. The business method is marked with the NONSUPPORTED transaction attribute.
C. This is NOT possible; a stateless session bean cannot invoke EJBContext.setRollbackOnly.
D. The bean has no metadata (in annotations or deployment descriptor) which specifies the transaction attribute for the method.
A developer needs to deliver a large-scale enterprise application that connects to legacy systems. If the developer chooses an EJB 3.0-compliant application server, which three are true about the EJB business component tier? (Choose three.)
A. Load-balancing is NOTaguarantee forallEJB 3.0 containers.
B. Clustering is guaranteed tobe supported by theEJB 3.0 container.
C. Thread pooling can be optimizedbythe BeanProviderprogrammatically.
D. Bean Providers are NOT required towritecode for transaction demarcation.
E. Support for server fail-over is guaranteedforan EJB 3.0-compliant application server.
F. EJB3.0-compliantcomponentsare guaranteed to workwithinanyJavaEE5 application server.
A developer wants to have bookingDate stored in table BOOKING, flightNumber in table FLIGHTBOOKING, and hotelName in table HOTELBOOKING. Which code, inserted at Line 11 of class Booking, is appropiate for this strategy?
A. ©Joined
B. @SingleTable
C. @TablePerClass
D. @lnheritance(strategy=JOINED)
E. @lnheritance(strategy=SINGLE_TABLE)
F. @lnheritance(strategy=TABLE_PER_CLASS)
Which two annotations can be applied at the class, method, and field levels? (Choose two.)
A. @EJBB. @lnit
B. ©Resource
C. @RolesAllowed
D. ©PostActivate
An Application Assembler is given the following stateless session bean: 10.©Stateless public class MyBean implements Mylnt {
11.
@RolesAllowed("SECRET")
12.
public void methodA(int x) {}
13.
public void methodA(String y) {}
14.
public void methodB(String z) {}
15.
}
A deployment descriptor is also supplied, a portion of which reads as follows:
20.
21.
22.
23.
24.
25.
26.
Which statement is true?
A. A client in any rolewill beabletoaccess anyof themethods.
B. Aclient inthe role "AGENT" willbeable to access any ofthemethods.
C. A client in therole"SECRET" will be able to access any of the methods.
D. A client in the role "AGENT" will be abletoaccess methodB and methodA(String), but not methodA(int).
E. Aclient in the role "SECRET" will beableto access methodA(int) and methodB, but NOT methodA(String).
A developer wants to create a portable EJB 3.0 application that includes the following class definition for the Entity Account: 11.©Entity
12.
@Entityl_isteners(com. acme.AlertMonitor. class)
13.
public class Account {
14.
// more code here
15.
@PrePersist
16.
protected void validateCreate0 {/* more code here */} 17.} Which statement is correct?
A. The validateCreate method may NOT throwruntimeexceptions.
B. ThevalidateCreate method can invoke the EntityManager.flush operation.
C. Methods oftheclass com.acme.AlertMonitor annotatedwithcallback annotationsmusttake an Object or Account instance astheonly argument.
D. The above class definition is NOT correct. An entity cannot defineacallback methodlike PrePersistand use the EntityListeners annotationatthe same time.
The Java Persistence API defines EntityTransaction interface. Which statement is correct?
A. It is used to control transactions on JTA entity managers.
B. It is used to control transactions on resource-local entity managers.
C. All methods of this interface will throw HlegalStateException if a transaction is NOT active.
D. Calling getTransaction method on a closed entity manager will throw an HlegalStateException.
The bean class of an EJB Web service endpoint has one method annotated with @WebMethod. Which two types can be legally returned from that method? (Choose two.)
A. Java. util. Date
B. javax.ejb.Timer
C. an array ofJava.lang. String
D. an EJB3.0local businessinterfacereference
E. an EJB3.0 remotebusiness interfacereference
The deployment descriptor for a stateless session bean that uses the isCallerlnRole method reads as follows:
3.
4.
5.
6.
16.
17.
18.
Is allowed to view and update all employee records.
19.
20.
21.
Which two roles are responsible for creating this deployment descriptor? (Choose two.)
A. Deployer
B. BeanProvider
C. System Administrator
D. Application Assembler
A developer writes an interceptor class called Foolnterceptor containing the following Aroundlnvoke method:
11.
@Aroundlnvoke
12.
public Object intercept(lnvocationContext ctx) {
13.
return "intercepted";
14.}
Foolnterceptor is applied to a business method in a stateless session bean:
11.
@lnterceptors(Foolnterceptor.class)
12.
public String testzero(int i) {
13.
return (i == 0) ? "zero""not zero";
14.
}
Which describes the result when a client invokes the testzero method with a value of 1?
A. The intercept method is NEVER invoked.
B. The clientreceivesareturnvalueof "zero".
C. The client receivesa returnvalue of "not zero".
D. The client receivesareturn value of "intercepted".
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