多项选择题

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

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单项选择题

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

多项选择题

Whichthreearevalidvaluesforthebody-contentattributeofatagdirectiveinatagfile？（）

A.EL
B.JSP
C.Empty
D.Dynamic
E.Scriptless
F.Tagdependent

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