SCWCD(310-083)
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 ne
题目
Front Controller and Transfer Object
Front Controller and Service Locator
Business Delegate and Transfer Object
Business Delegate and Intercepting Filter
相似问题和答案
第1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
正确答案:C
第2题：
A developer is designing a multi-tier web application and discovers a need to log each incoming client request. 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
- F、 Model-View-Controller
正确答案:C
第3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 Object
- B、Front Controller and Service Locator
- C、Business Delegate and Transfer Object
- D、Business Delegate and Intercepting Filter
正确答案:C
第4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、 Flyweight
- B、 Transfer Object
- C、 Service Locator
- D、 Dispatcher View
- E、 Business Delegate
- F、 Model-View-Controller
正确答案:B
第5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、Command
- B、Transfer Object
- C、Service Locator
- D、Session Facade
- E、Business Delegate
正确答案:C
第6题：
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
正确答案:C
第7题：
A developer is designing a multi-tier application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition， the application needs to find， in a transparent manner， the heterogeneous business components used to service the client’s requests. Which design patterns， working together， address these issues？（）
- A、 Business Delegate and Transfer Object
- B、 Business Delegate and Service Locator
- C、 Front Controller and Business Delegate
- D、 Intercepting Filter and Transfer Object
- E、 Model-View-Controller and Intercepting Filter
正确答案:B
第8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 Object
- B、 Service Locator
- C、 Intercepting Filter
- D、 Business Delegate
正确答案:D
第9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？（）
- A、Transfer Object
- B、Service Locator
- C、Front Controller
- D、Intercepting Filter
- E、Business Delegate
正确答案:C,D
第10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、Flyweight
- B、Transfer Object
- C、Service Locator
- D、Dispatcher View
- E、Business Delegate
- F、Model-View-Controller
正确答案:B