Microsoft 070-513 : TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4

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Microsoft 070-513 Exam Syllabus Topics:

Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

Question #1
A Windows Communication Foundation (WCF) solution uses the following contracts. (Line numbers are included for reference only.)

When the client calls GetMessage on the service interface, the service calls GetName on the client callback.
In the client, the class NameService implements the callback contract.
The client channel is created as follows.

You need to ensure that the service callback is processed by the instance of NameService.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A. Change line 25 to the following code segment.
Dim factory As DuplexChannelFactory(Of IGreetingService) =
New DuplexChannelFactory(Of IGreetingService)(
callbackContext, binding, address)
B. Add the following code segment after line 26.
callbackContext.IncomingChannels.Add(
DirectCast(greetingService, IDuplexChannel))
C. Add the following code segment after line 26.
callbackContext.OutgoingChannels.Add(
DirectCast(greetingService, IDuplexChannel))
D. Change line 26 to the following code segment.
Dim greetingService As IGreetingService =
factory.CreateChannel(callbackContext)

Question #2
You are adding a Windows Communication Foundation (WCF) service to an existing application. The application is configured as follows. (Line numbers are included for reference only.)
01 <configuration>
02 <system.serviceModel>
03 <services>
04 <service name="Contoso.Sales.StockService"
behaviorConfiguration="MetadataBehavior">
06 <host>
07 <baseAddresses>
08 <add
baseAddress="http://contoso.com:8080/StockService" />
09 </baseAddresses>
10 </host>
11 </service>
12 </services>
13 <behaviors>
14 <serviceBehaviors>
15 <behavior name="MetadataBehavior">
16 </behavior>
17 </serviceBehaviors>
18 </behaviors>
You need to configure the service to publish the service metadata.
Which two actions should you perform?
(Each correct answer presents part of the solution. Choose two.)

A. Add the following XML segment between lines 10 and 11.
<endpoint address=""
binding="mexHttpBinding"
contract="IMetadataExchange" />
B. Add the following XML segment between lines15 and 16.
<serviceDiscovery>
<announcementEndpoints>
<endpoint address=""/>
</announcementEndpoints>
</serviceDiscovery>
C. Add the following XML segment between lines 15 and 16
<serviceMetadata httpGetEnabled="true"/>
D. Add the following XML segment between lines 10 and 11.
<endpoint address=""
binding="basicHttpBinding"
contract="IMetadataExchange" />

Question #3
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
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
B. 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
C. 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
D. 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

Question #4
You are developing a windows Communication Foundation (WCF) service that will be hosted in Microsoft Intemnet Information Services (IIS) 7.0.
The service must be hosted in an lIs application named Info. You need to enable this senvice to be hosted in llS by changing the web.config file
Which XML segment should you add to the web.config file?

A. Option C
B. Option D
C. Option A
D. Option B

Question #5
An ASP.NET application hosts a RESTful Windows Communication Foundation (WCF) service at /Services/Contoso.svc. The service provides a JavaScript resource to clients. You have an explicit reference to the JavaScript in your page markup as follows.
<script type="text/javaScript" src="/Services/Contoso.svc/js" />
You need to retrieve the debug version of the service JavaScript.
What should you do?

A. In the script tag, append debug to the src attribute.
B. In the <%@ ServiceHost %> header for /Services/Contoso.svc, set the Debug attribute to true.
C. In the script tag, add a debug attribute and set its value to true.
D. In the <%@ Page %> header, set the Debug attribute to true.

Solutions: