Oracle Oracle Certifications 1Z0-860 Questions & Answers

• Question 201:

  Given :

  public class MyException extends Exception {}

  The business interface Foo declares a method work0: I.public void work0 throws MyException;

  The bean class FooBean contains the following:

  10.©Stateless

  II. @Remote(Foo.class)

  12.

  public class FooBean {

  13.

  public void workQ throws MyException {

  14.

  //do some work not shown here

  15.

  throw new MyException0;

  16.}

  Assuming there is no deployment descriptor, which statement is true when the workQ method is invoked by a client with an existing transaction context and execution reaches Line 15?

  A. The container does notroll back thetransaction.

  B. The clientreceives javax.ejb.EJBTransactionRequiredException.

  C. The clientreceivesjavax.ejb.EJBTransactionRolledbackException.

  D. Thecontainer marks the transactionforrollback by calling the EJBContext.setRollbackOnly method.

  Correct Answer: A

• Question 202:

  A session bean calls the setRollbackOnly method on the EJBContext interface within a business method with an active transaction. Which two are correct? (Choose two.)

  A. The transaction timeout is immediately disabled.

  B. The container will ensure that the transaction will never commit.

  C. The bean must have started the current transaction for this to be legal.

  D. The bean must have bean-managed transaction demarcation for this to be legal.

  E. Thebean must have container-managed transaction demarcation for this to be legal.

  Correct Answer: BE

• Question 203:

  A session bean's business method invokes UserTransaction.setRollbackOnly and receives an HlegalStateException. Under which circumstance canthis happen?

  A. The bean is using bean-managed transactions regardless of whether there is an active transaction.

  B. There is no circumstance that would cause setRollbackOnly to throw an HlegalStateException.

  C. The bean is using bean-managed transaction demarcation, and UserTransaction.begin has NOT been invoked.

  D. The setRollbackOnly method is invoked within a bean-managed transaction, and UserTransaction.commit has NOT been invoked.

  Correct Answer: C

• Question 204:

  Given the following entity class:

  11.

  @Entity public class Customer)

  12.

  @ld private int id;

  13.

  private transient String name;

  14.

  private Jav

  a.

  math. BigDecimal grossAmmount;

  15.}

  Which mapping annotation can be added to the fields of this entity?

  A.

  @Columntothe name field

  B.

  @Embeddedldto theid field

  C.

  @Basictothe grossAmmountfield

  D.

  @JoinColumnstothe grossAmmount field

  Correct Answer: C

• Question 205:

  Which two statements are true about EJB 3.0 JMS message-driven beans? (Choose two.)

  A. The developer can use JMS messageselector declarationsto restrict the messages that the bean receives.

  B. The developer can associate the bean with a specific queue or topic using the resource-ref element of the deployment descriptor.

  C. To achieve concurrent processing of more than one message at a time, more than one bean class must be associated with the same JMS queue.

  D. The developer can usetheactivationConfigelementoftheMessageDrivenannotationto specify whether the bean should be associated with a queue or a topic.

  Correct Answer: AD

• Question 206:

  A developer wants to create a Java Persistence query that returns valid U.S. phone numbers (formatted as "123-456-7890" or "800-RUN-EJB3") from a collection of differently formatted international phone numbers. The developer needs only those numbers that begin with 303. Which WHERE clause is correct?

  A. WHEREaddr. phone LIKE 303J

  B. WHERE addr. phone LIKE 303%'

  C. WHEREaddr. phone LIKE303-_-_'

  D. WHEREaddr.phone LIKE 303-%-%'

  E. WHEREaddr. phoneLIKE 303- - '

  F. WHERE addr. phone LIKE 303-%%%-%%%%'

  Correct Answer: E

• Question 207:

  A session bean's business method throws an exception during execution. Which two are responsibilities of the Bean Provider when throwing the exception? (Choose two.)

  A. For application exceptions, ensure that if the current transaction commits there will be no loss of data integrity.

  B. For application exceptions, ensurethatthe current transaction will commit.

  C. For system errors, when the client is remote, throw a java.rmi.RemoteException that wraps the original exception.

  D. For checked exceptions from which the bean cannot recover, throw an EJBException that wraps the original exception.

  Correct Answer: AD

• Question 208:

  Given: 10.©Stateless

  11.

  @RunAs("X")

  12.

  public class SecureBeanOl implements SecureOl {

  13.

  @EJB Secure02 secure02;

  23.

  @RolesAllowed("A")

  24.

  public void methodA0 {

  25.

  secureO2.methodB0;

  26.}

  10.©Stateless

  11. public void SecureBean02 implements Secure02{

  23.

  @RolesAllowed("A")

  24.

  public void methodB0 {

  A user who is only in role A invokes SecureOl. method . Assuming NO other security-related metadata, what is the expected result?

  A. An exception is thrown at Line 25.

  B. Anexceptionisthrown at Line 13.

  C. methodA cannot beinvokedbythis user.

  D. The codeexecutes without raising an exception.

  Correct Answer: A

• Question 209:

  A developer creates a stateful session bean that is used by many concurrent clients. The clients are written by other development teams 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 ina@Removeannotated method.

  B. Re-establish references to resources in an @lnit annotated method.

  C. Release references to resources ina@PreDestroy annotated method.

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

  E. Re-establish referencestoresources ina ©PostActivate annotatedmethod.

  Correct Answer: CDE

• Question 210:

  A developer is writing a stateless session bean that is obtaining a transaction-scoped entity manager using injection and assumes the application defines one persistence unit. Which declaration is correct?

  A. ©ResourceEntityManagerem;

  B. @PersistenceUnit EntityManager em;

  C. @PersistenceContext EntityManager em;

  D. @PersistenceUnit("TransactionScoped") EntityManager em;

  Correct Answer: C