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A Windows Azure application includes a single-threaded worker role that has multiple instances. The worker role hosts a Windows Communication Foundation （WCF） service. Each request to the WCF service takes several seconds to complete. You need to recommend an approach for ensuring that worker role instances do not receive requests while processing. What should you recommend？（）
- A、 Close the WCF endpoint.
- B、 Throw an exception to cancel the request.
- C、 Redirect incoming requests to a different worker role instance.
- D、 Remove the worker role instance from the load balancer rotation.
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更多 “ A Windows Azure application includes a single-threaded worker role that has multiple instances. The worker role hosts a Windows Communication Foundation （WCF） service. Each request to the WCF service takes several seconds to complete. You need to recommend an approach for ensuring that worker role instances do not receive requests while processing. What should you recommend？（）A、 Close the WCF endpoint.B、 Throw an exception to cancel the request.C、 Redirect incoming requests to a different worker role instance.D、 Remove the worker role instance from the load balancer rotation.” 相关考题
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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.
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单选题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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单选题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？（）A
Perform a VIP swap.B
Perform an in-place upgrade.C
Delete the current deployment and then redeploy the application.D
Copy the cloud package to blob storage and then restart the service.
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单选题You plan to host a Windows Communication Foundation （WCF） service in a Windows Azure worker role. Custom code is necessary to initialize and configure the service endpoint. You need to recommend the point at which the application should initialize the WCF service. What should you recommend？（）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.
考题
单选题You are building a client for a Windows Communication Foundation (WCF) service. You need to create a proxy to consume this service. Which class should you use?（）A
ChannelFactoryB
ServiceHostC
ClientRuntimeD
CommunicationObject
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单选题A Windows Azure application includes a single-threaded worker role that has multiple instances. The worker role hosts a Windows Communication Foundation （WCF） service. Each request to the WCF service takes several seconds to complete. You need to recommend an approach for ensuring that worker role instances do not receive requests while processing. What should you recommend？（）A
Close the WCF endpoint.B
Throw an exception to cancel the request.C
Redirect incoming requests to a different worker role instance.D
Remove the worker role instance from the load balancer rotation.
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单选题You are designing a Windows Azure application that will use a worker role. The worker role will create temporary files. You need to recommend an approach for creating the temporary files that minimizes storage transactions. What should you recommend？（）A
Create the files on a Windows Azure Drive.B
Create the files in Windows Azure local storage.C
Create the files in Windows Azure Storage page blobs.D
Create the files in Windows Azure Storage block blobs.
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单选题You are planning to migrate an existing web application to Windows Azure. The application consists of an ASP.NET web application and a set of native Win32 Windows Services that provide data to the application by using named pipes. The Windows Services cannot be modified. You need to recommend a strategy for migrating the application to Windows Azure. What should you recommend？（）A
Define a Windows CommunicationFoundation （WCF） contract for the services.B
Deploy each Windows Service to a separate worker role. Deploy the ASP.NET application to a web role.C
Deploy the application and Windows Services in a Windows Azure VM role.D
Upload service binaries to a web role by using the Windows Azure Service Management API.
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