单项选择题
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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多项选择题
Inann-tierapplication，whichtwoinvocationsaretypicallyremote，notlocal？（）
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 -
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
