单项选择题
When adding a element to a web application deployment descriptor， the inclusion of which sub-element requires the definition of an error page（）？
B. <auth-metod>
C. <auth-constraint>
D. <form-login-config>
E. <user-data-constaint>
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相关考题
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单项选择题
Whichsecuritymechanismcanbedirectedthroughtheelementinawebdeploymentdescriptor（）？
A. authorization
B. data integrity
C. confidentiality
D. authentication -
多项选择题
A Company.com developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application？ （）
A. Proxy
B. View Helper
C. Front Controller
D. Session Façade
E. Business Delegate
F. Model-View-Controller -
单项选择题
WhichischaracteristicoftheBusinessDelegatepattern？（）
A. It decreases complexity by removing a layer of proxy classes.
B. It reduces coupling between tiers by hiding implementation details.
C. It decreases performance due to the lack of caching of remote data.
D. It forces business-tier expectations to be dealt with in the presentation-tier.
