单项选择题
A. Deploy the application tier and the business tier to one role with two Medium instances.
B. Deploy the application tier and the business tier to one role with two Large instances.
C. Deploy the application tier role to a Medium instance. Deploy the business tier role to a medium instance.
D. Deploy the application tier role to a Large instance. Deploy the business tier role to a Large instance.
单项选择题 You are migrating a solution to Windows Azure. The solution includes a web application and a business logic layer. The web application runs on three dual-core servers. The business logic layer runs on two quad-core servers. The Windows Azure application must match or exceed the current hardware specifications. You need to recommend role instance sizes that minimize cost. What should you recommend？（）
单项选择题 You are designing an upgrade strategy for a Windows Azure application that includes one web role with one instance. You have the following requirements： - Test the application on the Windows Azure platform. - Ensure that application upgrades can be rolled back. - Ensure that upgrade and rollback processes do not cause downtime. You need to recommend an approach for upgrading the application. What should you recommend？（）
单项选择题 You are designing a Windows Azure application. The application contains one web role and three worker roles. You need to recommend an approach for updating only one role without interrupting the other roles. What should you recommend？（）