Flyweight
Transfer Object
Service Locator
Dispatcher View
Business Delegate
Model-View-Controller
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？（）
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？ （）
第3题：
A.A
B.B
C.C
D.D
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 clientrequest. Which two patterns， taken independently， provide a solution for this problem？（）
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？（）
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？（）
第8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？（）
第9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？（）
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？（）