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？（）

A. Create a worker role for each report file that constantly polls the queue for requests.
B. Create a workerrole for each report file that checks the queue at scheduled intervals for requests.
C. Create a single worker role that constantly polls the queue for requests and executes the requests on multiple threads.
D. Create a single worker role that checks the queue at scheduled intervals for requests and executes the requests on multiple threads.

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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？（）

A. A single role instance that processes messages individually
B. A single role instance with multithreaded request processing
C. Multiple role instances that process messages individually
D. Multiple role instances， each with multithreaded request processing

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？（）

A. Move business logic to a worker role.
B. Vertically partition the SQL Azure database.
C. Store business logic results in Windows Azure local storage.
D. Store business logic resultsin Windows Azure Table storage

单项选择题You are designing a Windows Azure web application that does not use ASP.NET. The application requires a standalone Win32 interpreter. You need to recommend an approach for allowing access to the interpreter. What should you recommend？（）

A. Use a web role. Configure the interpreter as an ISAPI filter.
B. Use a web role. Configure a FastCGI handler for the interpreter and set the path to the interpreter.
C. Use a worker role with an internal endpoint. Enable native code execution.
D. Use a worker role with an external endpoint. Configure a FastCGI handler for the interpreter and set the path to the root.

多项选择题You are designing a Windows Azure application. The application includes processes that communicate by using Windows Communications Foundation （WCF） services. The WCF services must support streaming. You need to recommend a host for the processes and a WCF binding. Which two actions should you recommend？（）

A. Host the processes in web roles.
B. Host the processes in worker roles.
C. Use NetTcpBinding for the WCF services.
D. Use WSHttpBinding for the WCF services.

单项选择题You are developing a Windows Azure application in which a web role and worker role will communicate by using a Windows Azure Queue. You need to recommend an approach for ensuring that the worker role does not attempt to process any message more than three times. What should you recommend？（）

A. Appropriately handle poison messages.
B. Decrease the visibility timeout for messages.
C. Reduce the time-to-live interval for messages in the queue.
D. Increase the number of worker role instances reading messages from the queue.