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单选题
A developer is designing a web application which extensively uses EJBs and JMS. The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further， because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides a solution for this problem？（）
A
Command
B
Transfer object
C
Service locator
D
Session Façade
E
Business delegate
F
Data access object
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A 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 havebecome very large. There is also common processing code in many servlets because these use cases arevery similar. Which two design patterns can be used together to refactor and simplify this web application？（）A、ProxyB、View HelperC、Front ControllerD、Session FacadeE、Business DelegateF、Model-View-Controller
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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 ObjectB、Front Controller and Service LocatorC、Business Delegate and Transfer ObjectD、Business Delegate and Intercepting Filter
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Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly， the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system. Which pattern can the developer use to solve this problem？（）A、 Transfer ObjectB、 Service LocatorC、 Intercepting FilterD、 Business Delegate
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A developer is designing a web application which extensively uses EJBs and JMS. The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further， because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides a solution for this problem？（）A、 CommandB、 Transfer objectC、 Service locatorD、 Session FaçadeE、 Business delegateF、 Data access object
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A developer is designing a web application which extensively uses EJBs and JMS. The developer finds thatthere is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further，because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides asolution for this problem？（）A、CommandB、Transfer ObjectC、Service LocatorD、Session FacadeE、Business Delegate
考题
The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. Whilereviewing the application， a developer realizes that in multiple places within the current application， nearlyduplicate code exists that finds enterprise beans. Which pattern should be used to eliminate this duplicatecode？（）A、Transfer ObjectB、Front ControllerC、Service LocatorD、Intercepting FilterE、Business DelegateF、Model-View-Controller
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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？（）A、Transfer ObjectB、Service LocatorC、Front ControllerD、Intercepting FilterE、Business Delegate
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A developer is designing a web application that must support multiple interfaces，including： an XML web service for B2B HTML for web-based clients WML for wireless customers. Which designpattern provides a solution for this problem？（）A、Session FacadeB、Business DelegateC、Data Access ObjectD、Model-View-ControllerE、Chain of Responsibility
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A developer is designing a web application that makes many fine-grained remote data requests for each client request. During testing， the developer discovers that the volume of remote requests significantly degrades performance of the application. Which design pattern provides a solution for this problem？（）A、 FlyweightB、 Transfer ObjectC、 Service LocatorD、 Dispatcher ViewE、 Business DelegateF、 Model-View-Controller
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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、FlyweightB、Transfer ObjectC、Service LocatorD、Dispatcher ViewE、Business DelegateF、Model-View-Controller
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Which the statement is true about web container session management（）？A、 Access to session-scoped attributes is guaranteed to be thread-safe by the web container.B、 To activate URL rewriting， the developer must use the HttpServletResponse.setURLRewriting method.C、 If the web application uses HTTPS， then the web container may use the data on the HTTPS request stream to identify the client.D、 The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.
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Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly，the consultant created several dozen JSP pages that directly communicate with the database. The Squeakybusiness team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the newsystem. Which pattern can the developer use to solve this problem？（）A、Transfer ObjectB、Service LocatorC、Intercepting FilterD、Business Delegate
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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 ProxyB、Front ControllerC、Service ActivatorD、Intercepting FilterE、Business Delegate
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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、 ProxyB、 View HelperC、 Front ControllerD、 Session FaçadeE、 Business DelegateF、 Model-View-Controller
考题
A developer is designing a web application that must support multiple interfaces， including： • an XML web service for B2B • HTML for web-based clients • WML for wireless customers Which design pattern provides a solution for this problem？（ ）A、 Session FaçadeB、 Business DelegateC、 Data Access ObjectD、 Model-View-ControllerE、 Chain of Responsibility
考题
单选题A developer is designing a web application that makes many fine-grained remote data requests for each client request. During testing， the developer discovers that the volume of remote requests significantly degrades performance of the application. Which design pattern provides a solution for this problem？（）A
FlyweightB
Transfer ObjectC
Service LocatorD
Dispatcher ViewE
Business DelegateF
Model-View-Controller
考题
多选题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？（）ATransfer ObjectBService LocatorCFront ControllerDIntercepting FilterEBusiness Delegate
考题
单选题The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. Whilereviewing the application， a developer realizes that in multiple places within the current application， nearlyduplicate code exists that finds enterprise beans. Which pattern should be used to eliminate this duplicatecode？（）A
Transfer ObjectB
Front ControllerC
Service LocatorD
Intercepting FilterE
Business DelegateF
Model-View-Controller
考题
单选题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 ObjectB
Front Controller and Service LocatorC
Business Delegate and Transfer ObjectD
Business Delegate and Intercepting Filter
考题
单选题Which the statement is true about web container session management（）？A
Access to session-scoped attributes is guaranteed to be thread-safe by the web container.B
To activate URL rewriting， the developer must use the HttpServletResponse.setURLRewriting method.C
If the web application uses HTTPS， then the web container may use the data on the HTTPS request stream to identify the client.D
The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.
考题
单选题A developer is designing a web application which extensively uses EJBs and JMS. The developer finds thatthere is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further，because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides asolution for this problem？（）A
CommandB
Transfer ObjectC
Service LocatorD
Session FacadeE
Business Delegate
考题
单选题A developer is designing a web application that must support multiple interfaces， including： an XML web service for B2B HTML for web-based clients WML for wireless customers. Which designpattern provides a solution for this problem？（）A
Session FacadeB
Business DelegateC
Data Access ObjectD
Model-View-ControllerE
Chain of Responsibility
考题
单选题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 ProxyB
Front ControllerC
Service ActivatorD
Intercepting FilterE
Business Delegate
考题
单选题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
FlyweightB
Transfer ObjectC
Service LocatorD
Dispatcher ViewE
Business DelegateF
Model-View-Controller
考题
单选题A developer is designing a web application that must support multiple interfaces， including： • an XML web service for B2B • HTML for web-based clients • WML for wireless customers Which design pattern provides a solution for this problem？（ ）A
Session FaçadeB
Business DelegateC
Data Access ObjectD
Model-View-ControllerE
Chain of Responsibility
考题
单选题A developer is designing a web application which extensively uses EJBs and JMS. The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further， because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides a solution for this problem？（）A
CommandB
Transfer objectC
Service locatorD
Session FaçadeE
Business delegateF
Data access object
考题
单选题Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly， the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system. Which pattern can the developer use to solve this problem？（）A
Transfer ObjectB
Service LocatorC
Intercepting FilterD
Business Delegate
考题
单选题Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly，the consultant created several dozen JSP pages that directly communicate with the database. The Squeakybusiness team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the newsystem. Which pattern can the developer use to solve this problem？（）A
Transfer ObjectB
Service LocatorC
Intercepting FilterD
Business Delegate
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