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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service.
The WCF service analyzes incoming message headers to verify whether special processing of the message is required.
The client application accompanies each call to the methods of the service with the address header.
You write the following code segment. (Line numbers are included for reference only.)

You need to ensure that the following requirements are met:
The client application makes a second call to the FindPhoneByAddress method.
The message header of the second call is presented by a variable named newHeader.
Which code segment should you insert at line 11?

A) Option D
B) Option A
C) Option B
D) Option C

2. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. You create a class named Customer for the WCF service. The Customer class has properties named Id, Name, and BalanceDue.
You plan to convert the Customer class into a data contract.
You need to ensure that only the Id property and the Name property are passed to the client applications.
Which code segment should you use?

A) <DataContract()> _
Public Class Customer
<DataMember()> _
Private Property Id() As Integer
...
End Property
<DataMember()> _
Public Property Name() As String ... End Property Public Property BalanceDue() As Double ... End Property End Class
B) <DataContract()> _ Public Class Customer <DataMember(EmitDefaultValue:=True)> _ Public Property Id() As Integer ... End Property <DataMember(EmitDefaultValue:=True)> _ Public Property Name() As String ... End Property <DataMember()> _ Friend Property BalanceDue() As Double ... End Property End Class
C) <DataContract()> _
Public Class Customer
Public Property Id() As Integer
...
End Property
Public Property Name() As String
...
End Property
Private Property BalanceDue() As Double
...
End Property
End Class
D) <DataContract()> _ Public Class Customer <DataMember()> _ Public Property Id() As Integer ... End Property <DataMember()> _ Public Property Name() As String ... End Property <DataMember(EmitDefaultValue:=False)> _ Public Property BalanceDue() As Double ... End Property End Class

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following lines of code.

You need to define the metadata for the DoSomething operation contract so that the parameter element is named Input and the method output element is named Output.
Which code segment should you use to replace the existing operation contract?

A) Option D
B) Option A
C) Option B
D) Option C

4. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment for the service implementation. (Line numbers are included for reference only.)
01 Public Sub PutMessage(ByVal msg As Message)
02 Dim value As String = Nothing
04 End Sub You need to retrieve the content from the received message body and store it in the variable named value.
Which code segment should you insert at line 03?

A) Option D
B) Option A
C) Option B
D) Option C

5. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application. You plan to perform the following tasks:
You write the following code segment.

You need to ensure that only those client applications that provide credentials belonging to the AdminGroup role can access the Remove method. What should you do?

A) Add the following attribute to the Service class. <PrincipalPermission(SecurityAction.
Demand, _ Name:="Remove", Role:="AdminGroup")> _
B) Add the following attribute to the Remove method of the IService interface. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _
C) Add the following attribute to the Service class <PrincipalPermission(SecurityAction. Demand,_ Name:="IService. Remove", Role:="AdminGroup")> _
D) Add the following attribute to the Remove method of the Service class. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _

Solutions: