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Exam Code: 070-513-VB
Exam Name: Microsoft (Windows Communication Foundation Development with Microsoft VB.NET Framework 4)
One year free update, No help, Full refund!
Total Q&A: 135 Questions and Answers
Last Update: 2014-01-30

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NO.1 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 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.
B. 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>
C. Apply the following attribute to the ContosoService class.
<ServiceBehavior(IncludeExceptionDetailInFaults:=True)>
D. For each OperationContract exposed by IContosoService , apply the following
attribute.
<FaultContract(GetType(Exception))>
Answer: C

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NO.2 You create a Windows Communication Foundation (WCF) service and deploy it with
wsHttpBinding and message security enabled. You create an intermediate WCF
service for logging messages sent to the primary service. The intermediate service is
called via the clientVia endpoint behavior. The primary service is receiving malformed
data from a client application. You need to enable inspection of the malformed data
and prevent message tampering. What should you do?
A. Specify a protection level of None in the service contract for the intermediate
service. Disable message and transport security from the client application
configuration file.
B. Specify a protection level of Sign in the service contract for the intermediate service.
Disable transport security from the client application configuration file.
C. Modify the binding on the intermediate service to use netNamedPipeBinding.
D. Modify the binding on the intermediate service to use webHttpBinding.
Answer: B

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NO.3 You are moving a Windows Communication Foundation (WCF) service into
production. You need to be able to monitor the health of the service. You only want to
enable all performance counter instances exposed by the ServiceModelService 4.0.0.0
counter group. Which element should you add to the system.serviceModel section in
the application configuration file?
A. <diagnostics performanceCounters="ServiceOnly" />
B. <diagnostics wmiProviderEnabled="true" performanceCounters="Off" />
C. <diagnostics performanceCounters="All" />
D. <diagnostics wmiProviderEnabled="true" />
Answer: A

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