1Z0-895 試験問題を無料オンラインアクセス

A developer wants to create an enterprise bean that uses the EJB Timer service.
Which two are true? (Choose two.)

• A.The enterprise bean must implement the TimedObject interface.
• B.The developer can use either a message-driven bean, stateless session bean, or stateful session bean.
• C.Once created, a timer cannot be canceled.
• D.The bean can be used within a transaction.
• E.Once created, the timer will survive a container crash.

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 - ejb - jar.xml
  I - com/
  I - acme/
  I - servicelayer/
  <list of classes>
• B.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>
• C.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>
• D.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>

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

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

You are writing a client that sends a message to a JMS queue.
What two statements are true?

• A.You cannot use a JNDI lookup to access a JMS destination from a session bean.
• B.You can use resource injection to access a JMS destination from a servlet.
• C.You must use a JNDI lookup to access a JMS destination from a standalone Java class.
• D.You cannot use resource injection to access a JMS destination from a Java EE application client.

A developer impalements an asynchronous implementation for calculating insurance proposals. The input data for the calculations is made available on a single message queue. Two types of insurance proposals will be calculated: car and life. Message with data for other insurance types are posted on the queue but should be left on the queue by this implementation.
Which statement is true?

• A.The developer can use a messageSelector to receive only the car and life data message if the header contains properties to make selection.
• B.The developer will NOT succeed because all messages will be consumed from the queue.
• C.The developer can implement a push-back mechanism if the message is of the wrong type.
• D.The developer can use a messageSelector to receive only the car and life data message if the JMS body contains selectable data.