单项选择题
A. Set the value of ServiceSecurityContext.Current.WindowsIdentity.ImpersonationLevel to TokenlmpersonationLevel.Impersonation
B. Set the value of ServiceSecurityContext.Current.Windowsldentity.ImpersonationLevel to TokenlmpersonationLevel.Delegation
C. Set the PrincipalPermissionAttribute on the service contract and update the binding attribute in the endpoint element of the configuration file to wsHttpBinding
D. Set the PnncipalPermissionAttribute on the service contract and update the bindingConfiguration attribute in the endpoint element of the configuration file to wsHttpBinding
单项选择题 You are creating a Windows Communication Foundation (WCF) service that implements the following service contract.[ServiceContract]public interface IOrderProcessing { [OperationContract] void ApproveOrder(int id);}You need to ensure that only users with the Manager role can call the ApproveOrder method. What should you do?（）
单项选择题 A Windows Communication Foundation (WCF) client uses the following service contract.(Line numbers are included for reference only.) 01 [ServiceContract] 02 public interface IService 03 { 04 [OperationContract] 05 string Operation1(); 06 [OperationContract] 07 string Operation2(); 08 } You need to ensure that all calls to Operation1 and Operation2 from the client are encrypted and signed. What should you do?（）
单项选择题 You are creating a Windows Communication Foundation (WCF) service that accepts messages from clients when they are started. The message is defined as follows:[MessageContract] public class Agent { public string CodeName { get; set; } public string SecretHandshake { get; set; }}You have the following requirements: The CodeName property must be sent in clear text. The service must be able to verify that the property value was not changed after being sent by the client. The SecretHandshake property must not be sent in clear text and must be readable by the service.What should you do?（）