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70-513 · Question #226

A WCF service code is implemented as follows. (Line numbers are included for reference only.) 01 <ServiceContract()> 02 <ServiceBehavior( 03 InstanceContextMode:=InstanceContextMode.Single)> 04…

The correct answer is A. Change the service behavior to the following. B. Change the service behavior to the following. See the full explanation below for the reasoning.

Question

A WCF service code is implemented as follows. (Line numbers are included for reference only.) 01 <ServiceContract()> 02 <ServiceBehavior( 03 InstanceContextMode:=InstanceContextMode.Single)> 04 Public Class CalculatorService 06 <OperationContract()> 07 Public Function Calculate(ByVal op1 As Double, 08 ByVal op As String, ByVal op2 As Double) As Double & 24 End Function 26 End Class You need to decrease the response time of the service. What are two possible ways to achieve this goal (Each correct answer presents a complete solution. Choose two.)

Options

  • AChange the service behavior to the following.
  • BChange the service behavior to the following.
  • CRequire the clients use threads, the Parallel Task Library, or other mechanism to issue
  • DRequire the clients to use async operations when calling the service.

How the community answered

(22 responses)
  • A
    77% (17)
  • C
    14% (3)
  • D
    9% (2)

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