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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation : 70-503

70-503 Exam Simulator
  • Exam Code: 70-503
  • Exam Name: TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation
  • Updated: Oct 08, 2026
  • Q & A: 270 Questions and Answers

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Microsoft 70-503 exam simulator

Microsoft 70-503 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security, Transactions and Reliability- Transactions, concurrency and instance management
- Reliable messaging and error handling
- Configuring security (transport and message level)
Topic 2: Windows Communication Foundation Fundamentals- Understanding WCF architecture and programming model
- Bindings, endpoints, and host configuration
- Service contracts, data contracts, and message contracts
Topic 3: Client Configuration and Communication- Bindings and interoperability considerations
- Channel factories and proxy generation
- Creating and configuring WCF client applications
Topic 4: Service Implementation and Hosting- Hosting WCF services in managed applications, IIS and WAS
- Implementing service contracts in C# using .NET Framework 3.5
- Configuring service behavior and metadata exposure

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

Question #1

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 the performanceCounters attribute to ServiceOnly in the configuration file.
  • B. Set up a message log listener in the configuration file. Set all trace properties to false.
  • C. Set the wmiProviderEnabled attribute to true in the configuration file.
  • D. Use WMI to set the AppDomainlnfo trace properties to true.
  • E. Set up a System. ServiceModel trace listener in the configuration file. Set all trace properties to false.
Reveal Solution  Discussion  0

Correct Answer: C,D,E  🗳️

Question #2

You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.

You need to ensure that the service meets the following requirements:
Which code segment should you use to replace the existing code segment?

  • A. Option A
  • B. Option B
  • C. Option D
  • D. Option C
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You want to enable message logging. You add the following code fragment to the service configuration file.
<system.diagnostics> <sources> <source
name="System. ServiceModel. Messagel_ogging">
<listeners> odd name="messages"
type="System. Diagnostics. XmlWriterTraceListener" />
</listeners> </source> </sources> </system.diagnostics> You receive an exception.
You need to successfully enable message logging. What should you do?

  • A. Set the switchValue attribute to verbose.
  • B. Set the maximum size of the message to be logged to 256K.
  • C. Set the initializeData attribute to the name of a log file.
  • D. Remove the message filter.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The WCF service contains the following code segment.

A console application hosts the WCF service. A Microsoft Windows client application uses the WCF service.
You need to implement the callback operation for the client application. You also need to ensure that the callback operation will not encounter deadlocks during execution.
Which code segment should you use?

  • A. Option A
  • B. Option B
  • C. Option D
  • D. Option C
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

You are creating a client application by using Microsoft .NET Framework 3.5. The application will be accessible on the Internet.
You plan to use the wsHttpBinding binding by using HTTPS. The Windows Communication Foundation (WCF) service is hosted by a Windows service. You associate the HTTPS port of the WCF server with an X.509 certificate.
You need to ensure that the client application trusts and validates the certificate.
What should you do?

  • A. Derive a class from the System.IdentityModel.Selectors.X509CertificateValidator class.
    Create an instance of the derived class on the server side.
    Write the validation code in the public override void Validate(X509Certificate2 certificate) method.
  • B. Subscribe to the ServerCertificateValidationCallback event of the System.Net.ServicePointManager class.
    Write the validation code in the boolValidate(object sender, X509Certificate cert, X509Chain chain. System.Net.Security.SslPolicyErrors error) event handler on the client side.
  • C. Derive a class from the System.IdentityModel.Selectors.X509CertificateValidator class.
    Create an instance of the derived class on the client side.
    Write the validation code in the public override void Validate(X509Certificate2 certificate) method.
  • D. Subscribe to the ServerCertificateValidationCallback event of the System.Net.ServicePointManager class.
    Write the validation code in the boolValidate(object sender, X509Certificate cert, X509Chain chain. System.Net.Security .SslPolicyErrors error) event handler on the server side.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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