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單項選擇題

A developer is designing the presentation tier for a web application which requires a centralized requesthandling to complete common processing required by each request.
Which design pattern provides asolution to this problem？（）

A.Remote Proxy
B.Front Controller
C.Service Activator
D.Intercepting Filter
E.Business Delegate

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多項選擇題

In an n-tier application， which two invocations are typically remote， not local？（）

A.JSP to Transfer Object
B.Service Locator to JNDI
C.Controller to request object
D.Transfer Object to Entity Bean
E.Controller to Business Delegate

單項選擇題

A developer is designing a web application that makes many fine-grained remote data requests for eachclient request. During testing， the developer discovers that the volume of remote requests significantlydegrades performance of the application.
Which design pattern provides a solution for this problem？（）

A.Flyweight
B.Transfer Object
C.Service Locator
D.Dispatcher View
E.Business Delegate
F.Model-View-Controller

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