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Question 11: You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment.
<ServiceContract()> _
Public Interface IMathService
<OperationContract()> _
Function AddNumbers( _
ByVal a As Integer, ByVal b As Integer) As Integer
Function AddNumbers( _
ByVal a As Double, ByVal b As Double) As Double
End Interface
You have not deployed the IMathService service.
You need to expose the AddNumbers (a As Double, b As Double) As Double operation to the
IMathService service contract.
Which code segment should you use?
A. <OperationContract()> _
Function AddNumbers( _
ByVal a As Integer, ByVal b As Integer) As Integer
<OperationContract()> _
Function AddNumbers( _
ByVal a As Double, ByVal b As Double) As Double
B. <OperationContract(Name:="AddInt")> _
Function AddNumbers( _
ByVal a As Integer, ByVal b As Integer) As Integer
<OperationContract(Name:="AddDouble")> _
Function AddNumbers( _
ByVal a As Double, ByVal b As Double) As Double
C. <OperationContract(Action:="IMathService/AddInt")> _
Function AddNumbers( _
ByVal a As Integer, ByVal b As Integer) As Integer
<OperationContract(Action:="IMathService/AddDouble")> _
Function AddNumbers( _
ByVal a As Double, ByVal b As Double) As Double
D. <OperationContract(Action:="AddInt/*")> _
Function AddNumbers( _
ByVal a As Integer, ByVal b As Integer) As Integer
<OperationContract(Action:="AddDouble/*")> _
Function AddNumbers( _
ByVal a As Double, ByVal b As Double) As Double
Correct Answer: B
