Command
Transfer Object
Service Locator
Session Facade
Business Delegate
第1题：
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？（）
第2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？（）
第3题：
When you are designing a Web application， which options define how rich text displays in a browser？（）
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？（）
第5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？ （）
第6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？（）
第7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？（）
第8题：
A developer is designing a web application that must verify for each request： The originating request is froma trusted network. The client has a valid session.The client has been authenticated. Which design pattern provides a solution in this situation？（）
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？（）
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？（）