Oracle 1Z0-895 valid study dumps : Java EE 6 Enterprise JavaBeans Developer Certified Expert

You are writing an EE component that functions as a message producer. The message producer sends message to a JMS queue. The component environment defines a resource-ref of type javax.jms.ConnectionFactory with the same jms/ConnectionFactory.
Which will correctly obtain a connection factory for a queue?

• A. @Resource (loopkup = "jms/QueueConnectionFactory") private static ConnectionFactoryconfac;
• B. @Resource ("ConnectionFactory") private static QueueConnectionFactory confac;
• C. Context context = new initialContext();
  Connectionfactory confac = (ConnectionFactory) Context.lookup
  ("java: comp/env/jms/ConnectionFactory");
• D. InitialContext Context = new Context () ;
  QueueConnectionFactory confac = (QueueConnectionFactory) context.lookup
  ("java: comp/env/jms/Myfactory");

Given the following stateless session bean:

How would you change the EJB to prevent multiple clients from simultaneously accessing the sayHello method of a single bean instance?

• A. Execute the call to generateLocalizedHello in a synchronized block
• B. Convert HelloWordBean into a singleton bean
• C. No changes are needed
• D. Convert generateLocalizehello into a synchronized method
• E. Convert sayHello into a synchronized method

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Which two are true about the client view of a message-driven bean? (Choose two.)

• A. References to message destinations can be infected.
• B. Clients of a message destination need to know that the destination is listened to by a pool of message consumers,
• C. References to message destinations cannot be looked up in the client's JNDI namespace.
• D. Clients of a message destination do NOT need to know that the destination is listened to by a message-driven bean.

Assume you have been tasked with building an ejb-jar containing an EJB application. The EJB application contains local, remote, and web service and-point EJBs that provide reusable services within an enterprise. When the application is deployed clients 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.servicelayer package and are deployed as class files. The application uses a maximum of deployment descriptor and annotation configuration?

• A. Name the jar servicelayer.jar with the following structure:
  / (Root)
  I - META - INF/
  I - MANIFEST.MF
  I - ejb-jar.xml
  I - com/
  I - servicelayer/
  <list of classes>
• B. Name the jar servicelayer.jar with the following structure:
  / (Root)
  I - META - INF /
  I - MANIFEST.MF
  I - classes/
  I - com/
  I - acme/
  I - servicelayer /
  <list of classes>
• C. Name the jar servicelayer.jar with the following structure:
  / (Root)
  I - META - INF/
  I - MANIFEST.MF
  I - ejb - jar.xml
  I - classes/
  I - com/
  I - acme /
  I - servicelayer/
  <list of classes>
• D. Name the jar servicelayer.jar with the following structure:
  /(Root)
  I - META - INF /
  I - ejb - jar.xml
  I - com/
  I - acme/
  I - servicelayer/
  <list of classes>

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Which is true about caller security principal propagation for asynchronous EJB method Invocations?

• A. Caller security principal does not propagate along with an asynchronous EJB method invocation.
• B. Caller security principal propagates along with an asynchronous EJB method invocation only if the target bean has at least one protected method.
• C. Caller security principal propagates along with an asynchronous EJB method invocation.
• D. Caller security principal propagates along with an asynchronous EJB method invocation only if the calling bean has at least one protected method.