多項選擇題

A developer is designing a multi-tier web application and discovers a need to log each incoming clientrequest.
Which two patterns， taken independently， provide a solution for this problem？（）

A.Transfer Object
B.Service Locator
C.Front Controller
D.Intercepting Filter
E.Business Delegate

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單項選擇題

A developer is designing the presentation tier for a web application that relies on a complex session bean.The session bean is still being developed and the APIs for it are NOT finalized. Any changes to the sessionbean API directly impacts the development of the presentation tier.
Which design pattern provides a meansto manage the uncertainty in the API？（）

A.View Helper
B.Front Controller
C.Composite View
D.Intercepting Filter
E.Business Delegate

多項選擇題

Which two are characteristics of the Front Controller pattern？（）

A.It simplifies remote interfaces to distributed objects.
B.It promotes cleaner application partitioning and encourages reuse.
C.It provides an initial point of contact for handling all related requests.
D.It reduces maintainability due to the increased complexity of the design.
E.It provides loosely coupled handlers that can be combined in various permutations.

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A developer is designing a multi-tier web application and discovers a need to log each incoming clientrequest. Which two patterns， taken independently， provide a solution for this problem？（）

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Which two are characteristics of the Front Controller pattern？（）

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A developer is designing a multi-tier web application and discovers a need to log each incoming clientrequest.
Which two patterns， taken independently， provide a solution for this problem？（）

Which two are characteristics of the Front Controller pattern？（）