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User-friendly is not a luxury in study software — it is the difference between using it and abandoning it. TestKingIT's 070-503 engine installs easily, runs smoothly, and turns every Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation practice session into measurable progress in 2026.
Microsoft 070-503 Exam Overview:
| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation |
| Exam Number: | 70-503 |
| Exam Price: | USD 125 |
| Exam Format: | Multiple-choice, Case study, Scenario-based questions |
| Related Certifications: | MCPD: Enterprise Application Developer 3.5 Microsoft Certified Professional (MCP) |
| Exam Duration: | 90 minutes |
| Available Languages: | German, Japanese, English, Chinese (Simplified), Spanish, French |
| Passing Score: | 700 out of 1000 |
| Certificate Validity Period: | Retired, no active validity; .NET 3.5 legacy certification |
| Real Exam Qty: | 50-60 |
| Recommended Training: | Official Microsoft Learning Course 6461 MCTS Self-Paced Training Kit (Exam 70-503) |
| Exam Registration: | Original Registration (Retired) |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Onsite at Prometric test centers; no longer available for registration as exam is retired |
| Pre Condition: | No mandatory prerequisites; recommended 1+ year experience with .NET Framework 3.5, Visual Studio 2008, and distributed application development; Exam 70-536 recommended for full MCTS path |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/archive/technet-wiki/8120.exam-70-503-ts-microsoft-net-3-5-windows-communication-foundation |
Microsoft 070-503 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Consuming Services | 18% | - Configure client endpoints and bindings - Handle communication exceptions - Create service proxies - Implement asynchronous calls |
| Topic 2: Securing Services | 18% | - Configure authorization - Configure message security - Configure authentication - Configure transport security |
| Topic 3: Instrumenting and Administering Services | 11% | - Enable message logging - Configure performance counters - Implement service throttling - Implement service tracing |
| Topic 4: Creating Services | 19% | - Define operation contracts - Process generic messages - Define data contracts - Define message contracts - Define service contracts |
| Topic 5: Exposing and Configuring Services | 21% | - Configure service behaviors - Configure bindings - Configure service endpoints - Configure service hosting |
| Topic 6: Hosting and Managing Services | 13% | - Create custom behaviors - Host services in managed applications - Manage service instances and concurrency - Host services in IIS/WAS |
Everything About Our 070-503 Materials and Policies
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According to the latest exam information, the 070-503 exam contains 50-60 questions within 90 minutes minutes. The testing engine reproduces that scope and calculates your final practice score — a useful reference for judging real-exam readiness.
At present, the 070-503 exam requires a passing score of 700 out of 1000, with a registration fee of USD 125. Microsoft sets both figures and may revise them, so confirm on the official site before you schedule.
The Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation blueprint covers these core domains:
- Creating Services (19%)
- Hosting and Managing Services (13%)
- Exposing and Configuring Services (21%)
Further domains complete the official outline; the question bank addresses all of them.
With data, not guesswork. The 070-503 testing engine is user-friendly and easy to install; upon completion of each practice test, it calculates your final score, giving you a concrete reference for the real exam. Behind the tools, professionals and IT specialists compose the materials, and every answer is expert-verified — aligned with the real exam's format across the Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation objectives. Before buying, try the free demo questions to test your knowledge; after buying, 24/7 Customer Service and Live Support assist with any problem, and you can ask the team for a discount code. That is the remarkable experience we work to provide.
Microsoft states the following prerequisites for the Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation: No mandatory prerequisites; recommended 1+ year experience with .NET Framework 3.5, Visual Studio 2008, and distributed application development; Exam 70-536 recommended for full MCTS path.
Check the authoritative wording on the official certification page before booking.
Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:
You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The WCF service must authenticate the client applications by validating credit card numbers and expiry dates. You write the following code segment. (Line numbers are included for reference only.)
01 class CreditCardTokenAuthenticator: SecurityTokenAuthenticator
02 {
03 // Implementation of other abstract methods comes here.
04 protected override ReadOnlyCollection<IAuthorizationPolicy> ValidateTokenCore(SecurityToken token)
05 {
06 CreditCardToken creditCardToken = token as CreditCardToken;
07 }
09 private bool IsCardValid(string cardNumber, 13 DateTime expirationDate)
10 {
11 // Validation code comes here.
12 }
13 }
You need to implement custom authentication for the WCF service. Which code segment should you insert at line 07?
- A. if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return new List<IAuthorizationPolicy>(0).AsReadOnly();
else
return null; - B. if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
throw new SecurityTokenValidationException();
else
return null; - C. if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return null;
else
return new List<IAuthorizationPolicy>(0).AsReadOnly(); - D. if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return null;
else
throw new SecurityTokenValidationException();
Correct Answer: A 🗳️
You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to insert an additional header in a response message.
What should you do?
- A. Implement the BeforeSendReply method of the IDispatchMessagelnspector interface.
- B. Implement the BeforeSendRequest method of the IClientMessagelnspector interface.
- C. Implement the AfterCall method of the IParameterlnspector interface.
- D. Implement the AfterReceiveRequest method of the IDispatchMessagelnspector interface.
Correct Answer: A 🗳️
You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The service will be hosted on a Web server that hosts other Microsoft ASP.NET applications.
You need to enable service model extension (.svc) for the W3SVC/l/ROOT/SampleApp directory and its subdirectories.
Which command should you use?
- A. ServiceModelReg.exe - k: W3SVC/l/ROOT/SampleApp
- B. ServiceModelReg.exe - sn: W3SVC/l/ROOT/SampleApp
- C. ServiceModelReg.exe - i: W3SVC/l/ROOT/SampleApp
- D. ServiceModelReg.exe -s: W3SVC/1/ROOT/SatripleApp
Correct Answer: A 🗳️
You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The component will return custom business objects. You plan to develop a design strategy that meets the following requirements:
The component can be accessed by the .NET Windows applications and JavaScript-based Web applications. The component can be consumed by the client applications by using the minimum amount of code. The least amount of network bandwidth is consumed. You need to implement the design strategy by using the minimum amount of development effort. What should you do?
- A. Develop the component as a Web service. Return the business objects as strings that contain the values of the properties concatenated and separated by a comma.
- B. Develop the component as a Windows Communication Foundation service. Return the business objects as JavaScript Object Notation objects.
- C. Develop the component as a Windows Communication Foundation service. Return the business objects as serialized binary objects.
- D. Develop the component as a Web service. Return the business objects as XML.
Correct Answer: B 🗳️
You are creating an endpoint for a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the endpoint by using a custom binding. You write the following code segment.
You need to prevent the custom binding from making a persistent connection to the service endpoint.
Which code segment should you use?
- A. Option B
- B. Option C
- C. Option D
- D. Option A
Correct Answer: B 🗳️
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