Oracle Java EE 6 Enterprise Architect Certified Master - 1Z0-807 Exam Practice Test

A Hot Potato anti pattern can arise from misuse of which technology combination?

Blue Berry Corporation, one of the biggest fruit traders in Canada, has the biggest competitor, Red Cherry Corporation. Blue Berry uses a web application that is developed by using java technologies, whereas Red Cherry's web application uses non-Java technologies. Blue Berry plans to share business sensitive, transactional data between the two systems by integrating them in a loosely coupled manner.
Which technology should be used to this?

Your application uses web services extensively and frequently to distribute large XML objects over HTTP. In addition, the application has been set particularly demanding performance and scalability
service level agreements (SLAs).
Which java API is best suited for your application?

Which three web applications work best when they are designed to be server-push enabled?

While analyzing an existing web application, you observe the following issues in the source code:
-Duplicatecontrol code is scattered throughout various view. -Businessand presentationlogicare mixed within these view.
The next phase of the project involves refactoring the existing code to address these two issues.
Which design pattern, if employed in the refactoring exercise, would most directly address the two issues?

You are the architect at ACME, a large global retailer of festival and holiday accessories. ACME wants to launch a new shopping portal for the holiday shopping session, allowing two months from project inception to going live. The portal must contain in-house and third-party stock to attack customers.
Fast response times are also critical so users remain engaged and sticky to the portal.
What would you recommend to the ACME project team to deliver this project?

A manufacturing company has a large investment in a legacy Inventory Management System
(IMS) developed with third-party technologies. You have been asked to design a Java EE
application that interacts with it.
You would like to ensure the following:
-Minimalapplicationcodeisrequired to parsethe communicationmessages.
-Communication isasynchronousandstateless.
-Performance import of the existing system is minimal.
Which two technologies combined would meet these requirements?

While analyzing an application, you observe that it contains numerous Interfaces for complex domain logic. Completing a business Function currently requires calling several of these interfaces in an order that is understood by system experts.
Which design pattern would you suggest to refactor the code?

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You are contracted to improve the performance of an application.
While analyzing the application, you observe the following issues:
-Tight couplingbetween client and business objects -Too manyremote method Invocationsbetween client and server
Which design pattern is best suited to improving performance?