Free Oracle 1Z0-895 Exam Dumps Questions & Answers

Which two statements are true? (Choose two.)

• A.A given enterprise bean's transaction information is immutable because it is deployed across various containers.
• B.An enterprise bean's transaction Information can be accessed by external tools only if the information is contained in an XML deployment descriptor.
• C.If a client accesses an enterprise bean locally such access must be mediated by the EJB container.
• D.If a container provides services NOT required by the EJB specification, then that container is NOT considered to be an EJB container.
• E.Typically, remotely accessible objects should be coarse-grained.

Suppose a developer wants to create an automatic persistent timer that performs data validation every hour. Given the following stateless session bean:
@Stateless
Public class OrderVerificationBean {
Private void verificationExternalOrders () {
/ / do something
}
}
What is the minimum modification you would need to make to the bean to create the automatic persistent timer?

• A.Modify the verifyExternalOrders method to look like this:
  @Schedule (hour = "*", persistent = true)
  private void verifyExceptionalOrders () {
  / / do something
  }
• B.Modify the verifyExternalOrders method to look like this:
  @Schedule (persistent = true)
  private void verifyExceptionalOrders () {
  / / do something
  }
• C.Modify the verifyExternalOrders method to look like this:
  @Schedule (hour = "*")
  private void verifyExternalOrders () {
  / / do something
  }
• D.Modify the verifyExternalOrders methos to look like this: @Schedule private void verifyExternalOrders () { / do something }

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

You are writing a client that sends a message to a JMS queue. The client includes the following code snippet:

• A.You could add more name-value pairs to the message body of the MapMessage if they were required by your application.
• B.The message can be consumed by durable subscriber.
• C.In the first line, the argument to the createProducer method needs to be cast to a Destination.
• D.The message is sent using non-default deliver mode, priority, and expiration time values.

A developer writes a stateless session bean FooBean and uses its deployment descriptor to declare a local ejb dependency on a stateful session bean in the same ejb-jar.

Which environment annotation, when declared within the FooBean bean class, is equivalent to the ejb-local-ref shown above?

• A.@EJB(beanName="BarBean") Private acme.Bar barRef;
• B.@EJB(name="bar", beanName="BarBean") Private acme.Bar barRef;
• C.@EJB(name="ejab/barRef", beanName="BarBean") Private acme.Bar bar;
• D.@EJB(name="barRef", beanName="BarBean") Private acme.Bar bar;