单项选择题 You are planning the migration of an existing application to Windows Azure and SQL Azure.  The application produces report files at the request of remote systems.   Requests for report files will be placed into a single Windows Azure Queue.   You must minimize the compute resources and storage transactions required to process the requests.   You need to recommend an approach for processing the requests. What should you recommend？（）

单项选择题 You are designing a Windows Azure application.  Messages will be placed into a Windows Azure Queue and then processed by a worker role.  There is no requirement for adherence to the Windows Azure Service Level Agreement （SLA）.   You need to recommend an approach for concurrently processing messages while minimizing compute cost.  What should you recommend？（）

单项选择题 You are evaluating a Windows Azure application.  The application includes the following elements：   - A web role that provides the ASP.NET user interface and business logic   - A single SQL Azure database that contains all application data    Each page must receive data from the business logic layer before returning results to the client.  Traffic has increased significantly.   The business logic is causing high CPU usage.   You need to recommend an approach for scaling the application.  What should you recommend？（）