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. Whic

第1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

第2题：

You are designing a Windows Azure application.  The application includes two web roles and three instances of a worker role.  The web roles will send requests to the worker role through one or more Windows Azure Queues. You have the following requirements：   - Ensure that each request is processed exactly one time.   - Minimize the idle time of each worker role instance. - Maximize the reliability of request processing.   You need to recommend a queue design for sending requests to the worker role.  What should you recommend？（）

• A、 Create a single queue.  Send requests on the single queue.
• B、 Create a queue for each web role.  Send requests on all queues at the same time.
• C、 Create a queue for each workerrole instance.  Send requests on each worker queue in a round robin.
• D、 Create a queue for each combination of web roles and worker role instances.  Send requests to all worker role instances based on the sending web role.

第3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？（）

• A、Transfer Object
• B、Session Facade
• C、Intercepting Filter
• D、Template Method
• E、Model-View-Controller

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？（）

• A、Flyweight
• B、Transfer Object
• C、Service Locator
• D、Dispatcher View
• E、Business Delegate
• F、Model-View-Controller

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？（）

• A、Transfer Object
• B、Service Locator
• C、Front Controller
• D、Intercepting Filter
• E、Business Delegate

第6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

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

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？（）

• A、Front Controller and Transfer Object
• B、Front Controller and Service Locator
• C、Business Delegate and Transfer Object
• D、Business Delegate and Intercepting Filter

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？（）

• A、 Flyweight
• B、 Transfer Object
• C、 Service Locator
• D、 Dispatcher View
• E、 Business Delegate
• F、 Model-View-Controller

第10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 Proxy
• B、Front Controller
• C、Service Activator
• D、Intercepting Filter
• E、Business Delegate