單項(xiàng)選擇題

A developer is designing a multi-tier web application and discovers a need to hide the details of establishingand maintaining remote communications from the client. In addition， because the business and resourcetiers are distributed， the application needs to minimize the inter-tier network traffic related to servicing clientrequests.
Which design patterns， working together， address these issues？（）

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

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多項(xiàng)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

單項(xiàng)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

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你可能感興趣的試題

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？（）

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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？（）