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A Windows Communication Foundation (WCF) application exposes a service as a SOAP endpoint for consumption by cross-platform clients.During integration testing, you find that one of the clients is not generating the correct messages to the WCF application.In order to debug the issue and fix the communication, you need to configure the service to log messages received from the client.What should you do?（）
- A、Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel trace source.
- B、Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel.MessageLogging trace source.
- C、Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel.MessageLogging trace source.
- D、Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel trace source.
参考答案
更多 “A Windows Communication Foundation (WCF) application exposes a service as a SOAP endpoint for consumption by cross-platform clients.During integration testing, you find that one of the clients is not generating the correct messages to the WCF application.In order to debug the issue and fix the communication, you need to configure the service to log messages received from the client.What should you do?（）A、Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel trace source.B、Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel.MessageLogging trace source.C、Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel.MessageLogging trace source.D、Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel trace source.” 相关考题
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A Windows Communication Foundation (WCF) service has a callback contract. You are developing a client application that will call this service.You must ensure that the client application can interact with the WCF service. What should you do?（）A、On the OperationContractAttribute, set the AsyncPattern property value to true.B、On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the client.C、On the client, create a proxy derived from DuplexClientBaseTChannel .D、On the client, use GetCallbackChannelT .
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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.
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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 developing an application that performs file backups in the background. The background application will host a Windows Communication Foundation (WCF) service and must be active as soon as the machine is running. The background application will not have a user interface. A front-end application will consume the WCF service and will provide the user interface.You need to choose a host environment for the WCF service. Which hosting environment should you choose? （）A
Microsoft Internet Information Services (IIS) 6.0B
Windows Process Activation Services (WAS)C
A Windows Forms applicationD
A Windows Service
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