单项选择题
A. When Windows Azure initializes the worker role instance.
B. When the worker role instance receives its first request.
C. When the worker role instance instantiates the WCF service.
D. When the worker role instance enters the main execution thread.
单项选择题 You are designing a Windows Azure application. The application will include services hosted in different geographic locations. The service locations may change. You must minimize the cost of communication between services. You need to recommend an approach for calling the services. What should you recommend？（）
单项选择题 You are evaluating a Windows Azure application. The application uses one instance of a web role. The role instance size is set to Medium. The application does not use SQL Azure. You have the following requirements for scaling the application： - Maximize throughput. - Minimize downtime while scaling. - Increase system resources. You need to recommend an approach for scaling the application. What should you recommend？（）
单项选择题 You are designing a Windows Azure application. The application will store data in Windows Azure Blob storage. Many of the application services will be interdependent. You need to recommend an approach for optimizing the performance of the application. What should you recommend？ （）