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Microsoft 070-513 Exam Syllabus Topics:

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

1. Your Windows Communication Foundation (WCF) client application uses HTTP to communicate with the service.
You need to enable message logging and include all security information such as tokens and nonces in logged messages.
What should you do?

A) In the machine configuration file, add the following XML segment to the
system.serviceModel configuration section.
<machineSettings enableLoggingKnownPii="true" />
Generate the ContosoService class using the Add Service Reference wizard.
Add the following code segment.
ContosoService client = new ContosoService();
client.Endpoint.Behaviors.Add(new CallbackDebugBehavior(true));
B) In the machine configuration file, add the following XML segment to the
system.serviceModel configuration section.
<machineSettings enableLoggingKnownPii="true" />
In the application configuration file, add the logKnownPii attribute to the message logging
diagnostics source and set the value of the attribute to true. In the application configuration
file, add the following XML segment to the system.serviceModel configuration section
group.
<diagnostics>
<messageLogging logMessagesAtTransportLevel="true"/>
</diagnostics>
C) In the application configuration file, add the logKnownPii attribute to the message
logging diagnostics source and set the value of the attribute to true.
Generate the ContosoService class using the Add Service Reference wizard. Add a
reference to System.ServiceModel.Routing.dll.
Add the following code segment.
ContosoService client = new ContosoService();
SoapProcessingBehavior behavior = new SoapProcessingBehavior();
behavior.ProcessMessages = true;
client.Endpoint.Behaviors.Add(behavior);
D) In the application configuration file, add the following XML segment to the
system.serviceModel configuration section group.
<diagnostics>
<messageLogging logMessagesAtTransportLevel="true"
logEntireMessage="true" />
</diagnostics>

2. You are developing a Windows Communication Foundation (WCF) service that allows customers to update financial data. The client applications call the service in a transaction. The service contract is defined as follows. (Line numbers are included for reference only.)
01 <ServiceContract()>
02 Public Interface IDatallpdate
03
04 <OperationContract()>
05 <TransactionFlow(TransactionFlowOption.Handatocy)>
06 Sub Update (ByVal accountNumber As String,
ByVal amount As Double)
07
08 End Interface
09
10 Class UpdateService
11 Implements IDataUpdate
12
13 <OperationBehavior(
TransactionScopeRequired:=True, TransactionAutoComplete:=True)>
14 Public Sub Update(ByVal accountNumber As String,
ByVal amount As Double)
Implements IDataUpdate.Update IS
16 Try
17 18 Catch ex As Exception
19 WriteErrorLog(ex) 20
21 End Try
22
23 End Sub
24
25 End Class
Customers report that the transaction completes successfully even if the Update method throws an exception.
You need to ensure that the transaction is aborted if the Update method is not successful.
What should you do?

A) insert the following line at line 20. Throw
B) Insert the following line at line 09. <ServiceBehavior( TransacCionAucoCompleteOnSesslonClose:"True) >
C) Replace line 13 with the following line. <OperationBehavior( TransactionScopeRequired:MTrue, TransactionAutoComplece:"False)>
D) Insert the following line at line 09. <ServiceBehavlor( TransactionAutoCoropleteOnSessionClose:"False) >

3. You are implementing a Windows Communication Foundation (WCF) service contract named IContosoService in a class named ContosoService. The service occasionally fails due to an exception being thrown at the service.
You need to send the stack trace of any unhandled exceptions to clients as a fault message.
What should you do?

A) In the application configuration file on the service and all the clients, add the following
XML segment to the system.diagnostics/sources configuration section group.
<source name="System.ServiceModel" switchValue="Error" propagateActivity="true">
<listeners>
<add name="ServiceModelTraceListener"
initializeData="app_tracelog.svclog"
type="System.Diagnostics.XmlWriterTraceListener" />
</listeners>
</source>
B) In the application configuration file on the client, add the following XML segment to the
system.serviceModel/behaviors configuration section group.
<endpointBehaviors>
<behavior name=" debug ">
< callback Debug includeExceptionDetailInFaults="true" />
</behavior>
</endpointBehaviors>
Associate the debug behavior with any endpoints that need to return exception details.
C) For each OperationContract exposed by IContosoService, apply the following attribute.
[FaultContract(typeof(Exception))]
D) Apply the following attribute to the ContosoService class.
[ServiceBehavior(IncludeExceptionDetailInFaults = true)]

4. You are developing a client that sends several types of SOP messages to a Windows Communication Foundation (WCF) service method named PostData PostData is currently defined as follows:
[OperationContract?
void PostData(Order data);
You need to modify PostData so that it can receive any SO6P message which code segment should you use

A) [OperaionContract] void PostDaa(BodyWriter data);
B) (OperationContract(1sOneWay = true, Action "v', ReplyAction = ".') addPostData(BodyWriterdata);
C) [OperaionContract0sOneWay true, Action = 'v', ReplyAction void PostData(Order data);
D) [OperationContract] void PostDaa(Message data);

5. You are modifying a Windows Communication Foundation (WCF) service that issues security tokens. The service is accessible through the named pipe protocol. No endpoints are added in the service code. The configuration file for the service is as follows. (Line numbers are included for reference only.)

You need to ensure that new and existing client applications can access the service through HTTP and named pipes.
What should you do?

A) Insert the following line at line 05.
<endpoint address=http://www.contoso.com binding="basicHttpBinding" contract="Contoso.TokenService" />
B) Insert the following line at line 08. <add baseAddress="net.tcp://www.contoso.com:8090" />
C) Insert the following line at line 05. <endpoint address=http://www.contoso.com binding="wsHttpBinding" contract="Contoso.TokenService" />
D) Insert the following line at line 08. <add baseAddress="http://www.contoso.com" />

Solutions: