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Microsoft 70-503 Exam Syllabus Topics:

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

1. You are replacing an ASMX Web service with a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The ASMX Web service has a number of existing clients, which you cannot recompile and redeploy. You need to maintain backward compatibility with the existing clients.
Which code fragment should you use?

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

2. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
You need to host the WCF service on the IIS Web server. First, you create a new folder for your application files. Next, you use the IIS management tool to create a Web application in the new folder.
Which three actions should you perform next? (Each correct answer presents part of the solution. Choose three.)

A) Create a vti_bin sub-folder within the application folder for your code files. Place the code file that defines and implements the service contract in this folder.
B) Create a service file that has the .svc extension containing the @servicehost directive information for the service. Move this file to the application folder.
C) Create an App_Code sub-folder within the application folder for your code files. Place the code file that defines and implements the service contract in this folder.
D) Create a web.config file that contains the appropriate configuration code. Place this file in the same folder as your service contract code.
E) Create a web.config file that contains the appropriate configuration code. Place this file in the application folder.
F) Create a service file that has the svc extension containing the @service directive information for the service. Move this file to the application folder.

3. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The WCF service accepts service requests from different partner applications. One of the partner applications occasionally receives faults. You need to identify why the service is generating faults. You must accomplish this goal without interrupting the service. What should you do?

A) Run SvcTraceViewer.exe /register on the WCF server.
B) Connect remotely to the WCF service by using a debugger. Place breakpoints in the
exception handling code segment.
C) Configure the Service Tracing options in the application configuration file. Analyze the
trace results by using the SvcTraceViewer.exe program.
D) Add the following code segment to the application configuration file.
<system.diagnostics>
<switches>
<add name="WcfFaultTrace" value="Error" />
</ switches>
</system.diagnostics>

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The client applications are unable to use SSL You need to ensure that clients authenticate by using a token provided by a Security Token Service (STS). What should you do?

A) Use a BasicHttpBinding binding with the security mode set to Message.
B) Use a BasicHttpBinding binding with the security mode set to TransportWithMessageCredential.
C) Use a WSFederationHttpBinding binding with the security mode set to TransportWithMessageCredential.
D) Use a WSFederationHttpBinding binding with the security mode set to Message.

5. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. You need to enable WCF tracing at runtime by using Windows Management Instrumentation (WMI). Which three tasks should you perform? (Each correct answer presents part of the solution. Choose three.)

A) Set up a message log listener in the configuration file. Set all trace properties to false.
B) Use WMI to set the AppDomainlnfo trace properties to true.
C) Set the wmiProviderEnabled attribute to true in the configuration file.
D) Set up a System. ServiceModel trace listener in the configuration file. Set all trace properties to false.
E) Set the performanceCounters attribute to ServiceOnly in the configuration file.

Solutions: