Microsoft 70-518 : PRO: Design & Develop Wndws Apps Using MS .NET Framework 4
- Exam Code: 70-518
- Exam Name: PRO: Design & Develop Wndws Apps Using MS .NET Framework 4
- Updated: Sep 19, 2026
- Q & A: 155 Questions and Answers
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Microsoft 70-518 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Design Windows Applications | - User interface design principles
|
| Data Access and Storage | - Data handling
|
| Deployment and Maintenance | - Application lifecycle management
|
| Develop Windows Applications | - UI implementation
|
Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:
You are developing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will run in a partially trusted sandbox.
You plan to deploy the application on client computers by using the ClickOnce deployment technology. You plan to sign the deployment and application manifest by using a trusted publisher certificate.
You need to ensure that the following requirements are met:
- Users are not prompted for elevated permissions during application deployment.
- The application can request elevated permissions at runtime.
Where should you install the trusted publisher certificate?
- A. In the trusted root store on each client computer
- B. In the trusted root store on the deployment server
- C. In the trusted publisher store on each client computer
- D. In the trusted publisher store on the deployment server
Correct Answer: C 🗳️
You are designing an application by using Windows Presentation Foundation (WPF), Microsoft .NET Framework 4, and Microsoft SQL Server 2008.
The application will contain several forms that include custom data validators.
You need to ensure that data is validated before the database updates occur. You also need to ensure that the validation logic can be reused.
How should you design the validation?
- A. Implement the INotifyPropertyChanged interface in the data class of the application.
- B. Implement the IDataErrorlnfo interface in the data class of the application.
- C. Subscribe to the TextChanged event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs. - D. Subscribe to the MouseLeave event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs.
Correct Answer: B 🗳️
You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application.
You need to recommend an approach for ensuring that the solution can support 5,000 concurrent users.
What should you recommend?
- A. Component stress testing
- B. Integration testing
- C. Stress testing
- D. Buffer overflow testing
Correct Answer: D 🗳️
You are designing a Windows Presentation Foundation (WPF) data entry application. The application uses data binding to bind controls in the user interface (UI) to business objects. The UI uses validation rules for each input control.
The data validation rules change based on the state of the business object.
You need to recommend a validation strategy that will allow changes to the validation rules without changes to the UI code.
What should you recommend?
- A. Set the ValidationStep attribute on ValidationRule elements to CommittedValue.
- B. Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with ExceptionValidationRule elements.
- C. Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with DataErrorValidationRule elements.
- D. Set the ValidationStep attribute on ValidationRule elements to RawProposedValue.
Correct Answer: C 🗳️
You are designing a Windows Presentation Foundation (WPF) application by using
Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will consist of a user interface (UI) tier and a middle tier. The middle tier will
be implemented by using Windows Communication Foundation (WCF).
You plan to design the exception handling strategy for the application. Each method in the middle tier will contain the following catch block. Catch e AsArgumentNullException.
Throw e
When testing the application, you discover that all ArgumentNullExceptions that occur in
the middle tier do not contain accurate stack trace information.
What should you do?
- A. Remove the exception parameter from the ArgumentNullException handler.
- B. Use a DispatcherUnhandledExceptionEvent handler in the UI tier.
- C. Create an ArgumentNullException handler in the UI tier.
- D. Use a DispatcherUnhandledExceptionEvent handler in the middle tier.
Correct Answer: A 🗳️
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