| Exam Code/Number: | 1Z0-807Join the discussion |
| Exam Name: | Java EE 6 Enterprise Architect Certified Master |
| Certification: | Oracle |
| Question Number: | 90 |
| Publish Date: | May 25, 2026 |
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The integration team has reported a problem in testing a few deployed MDBs. By design, each MDB listens to one of four named queues. Two producers write messages to each queue. The test issues messages of the same payload type that each producer will send, but varies the number or size of these messages to measure the messaging server's performance.
The team has noticed that the utilization remains at the same high rate any time the test writes messages destined for the third MDB. The message server log does not reveal any failure in sending messages to this MDB. Which anticipation expresses cause for this condition?
You are the lead technical designer for a new B2C retail application. A key goal is to minimize design and build complexity in order to maximize speed to market.
Which three features of JPA make it the most appropriate technology to use in building the persistence layer of the application?
You are the architect for a patient management system with an HTML UI. Currently, it is used by ward nurses who access the system using dockable tablet computers. The application uses the HttpSession object to store information.
In phase two of the implementation, nurses will also have access through smart phones. These phones will use a native client rather than HTML, and will access the same business logic using a Web service.
Which two are optimal methods to manage conversational state in the new version of the system?
You are the architect of an application that reads from and writes to multiple systems. The application must participate in an existing transaction to update a database using JDBC, and also invoke a transactional method on a remote system as part of the same transaction.
Which two technologies would you suggest, to access remote system, for this application?
