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單項(xiàng)選擇題

A Windows Communication Foundation (WCF) service implements the following contract. [ServiceContract] public interface IHelloService { [OperationContract(WebGet(UriTemplate="hello?name={name}"))] string SayHello(string name);}The implementation is as follows:public class HelloService: IHelloService { public string SayHello(string name) { return "Hello " + name; }}The service is self-hosted, and the hosting code is as follows:WebServiceHost svcHost = CreateHost();svcHost.Open();Console.ReadLine();svcHost.Close();You need to implement CreateHost so that the service has a single endpoint hosted at http://localhost:8000/HelloService.Which code segment should you use?（）

A.
B.
C.
D.

單項(xiàng)選擇題

A Windows Communication Foundation (WCF) service is self-hosted in a console application. The service implements the IDataAccess contract, which is defined in the MyApplication namespace. The service is implemented in a class named DataAccessService which implements the IDataAccess interface and also is defined in the MyApplication namespace. The hosting code is as follows. (Line numbers are included for reference only.)
01 static void Main(string[] args)
02 {
03 ServiceHost host;
04 ...
05 host.Open();
06 Console.ReadLine();
07 host.Close();
08 }
You need to create a ServiceHost instance and assign it to the host variable. You also need to instantiate the service host.Which line of code should you insert at line 04?（）

A. host = new ServiceHost("MyApplication.DataAccessService");
B. host = new ServiceHost("MyApplication.DataAccess");
C. host = new ServiceHost(typeof(IDataAccess));
D. host = new ServiceHost(typeof(DataAccessService));