Which JSTL tag structure supports this scenario?()
A.A
B.B
C.C
D.D
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Assuming the tag library in the exhibit is imported with the prefix forum, which custom tag invocation produces a translation error in a JSP page?()
A.A
B.B
C.C
D.D
E.E
A. authorization
B. data integrity
C. confidentiality
D. authentication
A. HTTP Basic Authentication
B. Form Based Authentication
C. HTTP Digest Authentication
D. HTTPS Client Authentication
B. <auth-metod>
C. <auth-constraint>
D. <form-login-config>
E. <user-data-constaint>
A. authorization
B. data integrity
C. confidentiality
D. authentication
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
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.
Company.com has decided to use the FUBAR Application Server to host their web application. Unfortunately, the FUBAR Application Server uses the server machine’s file system for its JNDI namespace. Every JNDI lookup performed in the web application is translated into a file 1/0 operation, which results in very poor performance.
Which J2EE pattern can help with this performance issue?()
A. Transfer Object
B. Service Locator
C. Intercepting Filter
D. Model-View-Controller
A Company.com developer is designing a multi-tier web application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition, because the business and resource tiers are distributed, the application needs to minimize the inter-tier network traffic related to servicing client requests.
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
E. Model-View-Controller and Intercepting Filter
A Company.com 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 are NOT finalized. Any changes to the session bean API directly impacts the development of the presentation tier.
Which design pattern provides a means to manage the uncertainty in the API?()
A. View Helper
B. Front Controller
C. Composite View
D. Intercepting Filter
E. Business Delegate
F. Chain of Responsibility
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