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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 DuplexClientBase<TChannel >.
- D、On the client, use GetCallbackChannel<T >.
参考答案
更多 “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 .” 相关考题
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单选题You work as a Web Developer at Certkiller.com. You are in the process of creating a Webapplication using Microsoft ASP.NET 3.5. This application will be part of a solution that contains a Windows Communication Foundation （WCF） service project. The Web application will be used to make calls to a service identified in theWCF service project. Management is planning to host the Web application on a separate serverfrom the WCF service. They want the WCF service to perform remotely. You need to add areference to the WCF service. What should you do？（）A
You should add an assembly reference to the project.B
You should add a project reference to the project.C
You should add a Web reference to the project.D
You should add a service reference to the project.
考题
单选题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. For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!C
On the client， create a proxy derived from DuplexClientBase（Of TChannel）.D
On the client， use GetCallbackChannel（Of T）.
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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You are developing a client application that consumes a Windows Communication Foundation (WCF) service. You use the svcutil.exe utility to create a proxy for the service. You use the svcutil.exe switches that generate asynchronous calls. GetFlight is a service operation that takes no parameters and returns a string. The GetFlightCallback method must be called when the service operation returns.You create an instance of the client proxy with the following code:var client = new TranvelServiceClient（ ）;You need to ensure that a callback is received when the GetFlight operation is called asynchronously. Which code segment should you use?（）A
client.BeginGetFlight(GetFlightCallback, null); client.GetFlight();B
client.GetFlight(); client.BeginGetFlight(GetFlightCallback, null);C
client.GetFlightCompleted += new EventHandler(GetFlightCallback); client.GetFlightAsync();D
IAsyncResult asyncResult = client.BeginGetFlight(GetFlightCallback, client); client.EndGetFlight(asyncResult);
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