A Java EE application that uses an EJB container must communicate with a legacy system developed using non-Java technologies.
Which two Java EE technologies can be used in the integration tier of the application? (Choose two.)

• A.JMS
• B.JPA
• C.JSF
• D.JCA

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Given the code sample:

And:

And:

And the next fragment from beans.xml:

And this injection point:
@Inject GenericMessenger messageHandler;
Which type would be injected at run time and referenced by the messageHandler variable?

• A.GenericMessenger
• B.MsgHandler
• C.None of the above. An exception would be thrown due to ambiguous bean references.
• D.SmsHandler

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You need to develop a chat application, which allows the display of emoticons and images together with text messages.
How should you configure a WebSocket endpoints to receive both text and binary messages?

• A.Create two @onMessagemethods in the same endpoint with appropriate parameter types.
• B.Define the @onMessagemethods in your endpoint with Objectas parameter and check the actual type in your code.
• C.You can achieve this only by creating separate WebSocket endpoints for each message type.
• D.Create two @onMessagemethods, each with appropriate decoder attribute in the same endpoint.

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Given a JSL document describing a batch job:

How do you initiate a batch job?

• A.Get the JobExecutionobject from BatchRuntimeand call its start()method.
• B.Get the JobOperatorobject from BatchRuntimeand call its start()method.
• C.Call BatchRunTime.initialize("ProductLoadJob");
• D.Get the JobExecutionobject from BatchRuntimeand set its status to JobStatus.INITIATED.

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Given the code fragments:

What code should you add to the body of the updateEmployeemethod in order to save pending changes to the database?
entityManager.merge(emp);

• A.EntityManager.merge(emp);
  entityManager.getTransaction().begin();
• B.entityManager.merge(emp);
  entityManager.getTransaction().commit();
• C.UserTransaction utx = (UserTransaction)ctx.lookup(''java:comp/
  UserTransaction'');
  utx.begin();
  entityManager.merge(emp);
  utx.commit();
  entityManager.lock(emp);
• D.Context. Ctx = new InitialContext();

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