It simplifies remote interfaces to distributed objects.
It promotes cleaner application partitioning and encourages reuse.
It provides an initial point of contact for handling all related requests.
It reduces maintainability due to the increased complexity of the design.
It provides loosely coupled handlers that can be combined in various permutations.
第1题：
Which two are characteristics of the Service Locator pattern？（）
第2题：
Which two are characteristics of the IS -IS protocol but not OSPF?（）
第3题：
In an n-tier application， which two invocations are typically remote， not local？（）
第4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？（）
第5题：
Which two are characteristics of the Intercepting Filter pattern？（）
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：
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？（）
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 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10题：
Which the two are characteristics of the Service Locator pattern？（）