DRAG DROP
You develop a Windows Communication Foundation (WCF) service that is hosted within a console application. The service implements the IRegistrationService interface in a class named RegistrationService. The service uses the following endpoint URL: http://localhost:8080/registrationservice/basic
You need to configure the console application to host the service.
How should you complete the relevant code? (To answer, drag the appropriate code segment to the correct location in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

A Windows Communication Foundation (WCF) service handles online order processing for your company.
You discover that many requests are being made with invalid account numbers. You create a class named AccountNumberValidator that has a method named Validate.
Before the message is processed, you need to validate account numbers with AccountNumberValidator and reject messages with invalid account numbers.
You create a new class that implements the IParameterInspector interface. Which code segment should you use in this class?

• A. Public Sub AfterCall(
  ByVal operationName As String,
  ByVal outputs() As Object,
  ByVal returnValue As Object,
  ByVal correlationState As Object) _ Implements
  IParameterInspector.AfterCall
  Dim accountNumber As String = GetAccountNumber(outputs)
  Dim validator As
  AccountNumberValidator = New AccountNumberValidator()
  If (Not validator.Validate(accountNumber)) Then
  Throw New FaultException()
  End If
  End Sub
  Public Function BeforeCall(
  ByVal operationName As String,
  ByVal inputs() As Object) As Object _
  Implements IParameterInspector.BeforeCall
  Return Nothing
  End Function
• B. Public Sub AfterCall(
  ByVal operationName As String,
  ByVal outputs() As Object,
  ByVal returnValue As Object,
  ByVal correlationState As
  Object) _
  Implements IParameterInspector.AfterCall
  Return
  End Sub
  Public Function BeforeCall(
  ByVal operationName As String,
  ByVal inputs() As Object) As Object _
  Implements IParameterInspector.BeforeCall
  Dim accountNumber As String = GetAccountNumber(inputs)
  Dim validator As AccountNumberValidator = New AccountNumberValidator() If (Not
  validator.Validate(accountNumber)) Then
  Throw New FaultException()
  End If
  Return Nothing
  End Function
• C. Public Sub AfterCall(
  ByVal operationName As String,
  ByVal outputs() As Object,
  ByVal returnValue As Object,
  ByVal correlationState As Object) _
  Implements IParameterInspector.AfterCall
  Return
  End Sub
  Public Function BeforeCall(
  ByVal operationName As String,
  ByVal inputs() As Object) As Object _
  Implements IParameterInspector.BeforeCall Dim accountNumber As String =
  GetAccountNumber(inputs)
  Dim validator As AccountNumberValidator =
  New AccountNumberValidator()
  If (Not validator.Validate(accountNumber)) Then
  Return New FaultException()
  End If
  End Function
• D. Public Sub AfterCall(
  ByVal operationName As String,
  ByVal outputs() As Object,
  ByVal returnValue As Object, ByVal correlationState As Object) _ Implements IParameterInspector.AfterCall Dim accountNumber As String = GetAccountNumber(outputs) Dim validator As AccountNumberValidator = New AccountNumberValidator() If (Not validator.Validate(accountNumber)) Then returnValue = New FaultException() End If End Sub Public Function BeforeCall( ByVal operationName As String, ByVal inputs() As Object) As Object _ Implements IParameterInspector.BeforeCall Return Nothing End Function

You are maintaining a Windows Communication Foundation (WCF) service that uses a custom UserNamePassword class to authenticate clients. The service certificate is hosted in the deployment server store for trusted root certificate authorities and has a Subject value of TaxServiceKey. Other service certificates hosted on the server also use TaxServiceKey as a Subject value.
You need to ensure that the service identifies itself with a certificate whose subject name and distinguished names are TaxServiceKey.
Which code segment should you use?

• A. HostInstance.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.My, X509FindType.FindBySubjectDistinguishedName, "CN=TaxServiceKey");
• B. HostInstance.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.My, X509FindType.FindBySubjectName, "CN=TaxServiceKey");
• C. HostInstance.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.AuthRoot, X509FindType.FindBySubjectName, "CN=TaxServiceKey");
• D. HostInstance.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.Root, X509FindType.FindBySubjectDistinguishedName, "CN=TaxServiceKey");

You are creating a Windows Communication Foundation (WCF) service.
You need to ensure that the service is compatible with ASP.NET to make use of the session state.
Which binding should you use?

• A. NetTcp Binding
• B. BasicHttpContextBinding
• C. NetTcp ContextBinding
• D. NetMsmqBinding