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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:

1. You are designing a Windows Presentation Foundation (WPF) client application from which
employees will access a Web service.
Business partners will access the Web service by using proprietary client applications.
You need to recommend a solution for ensuring the integrity of data in the system.
What should you recommend?

A) Encrypt data while storing it in the database.
B) Implement data validation on the client and reject invalid datA.
C) Implement data validation at the service layer and reject invalid datA.
D) Secure the Web service by using SSL.

2. You are designing an application by using Windows Presentation Foundation (WPF) and
Microsoft .NET Framework 4.
The user interface (UI) tier of the application will be implemented in WPF.
The middle tier of the application is implemented by using an existing COM component.
The middle tier contains a long-running method named ProcessDatA.
You need to ensure that users can continue to use the UI while ProcessData is running.
What should you do?

A) Use the Invoke method of the Dispatcher class to call ProcessDatA.
B) Call the DoEvents method of the Application class before invoking ProcessDatA.
C) Call the Run method of the Dispatcher class before invoking ProcessDat
D) Use an asynchronous worker thread to call ProcessDatA.

3. 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 publisher store on the deployment server
B) In the trusted publisher store on each client computer
C) In the trusted root store on the deployment server
D) In the trusted root store on each client computer

4. You design a Windows Presentation Foundation (WPF) application that connects to a Microsoft SQL Server 2008 database.
The WPF application becomes unresponsive at times. When the WPF application is running, physical memory usage is between 90 percent and 95 percent.
You need to recommend a tool that will identify the memory usage characteristics of the WPF application.
Which tool should you recommend?

A) SQL Profiler
B) Application Center Test (ACT)
C) CLR Profiler
D) Event Tracing for Windows (ETW)

5. You are designing an update to an existing Windows Presentation Foundation (WPF) application. You plan to use Microsoft Visual Studio 2010. The updated WPF application will require a specific version of a third-party component.
You have the following requirements:
- Deploy the update by using Windows Installer. - Update the WPF application only if the required version of the third-party component is present on the client computer.
You need to recommend configuration settings for the application installer.
Which property should you recommend be set?

A) The Version property of the Setup Project
B) The Condition property of a new Launch Condition
C) TheRemovePreviousVersions property of the Setup Project
D) The Version property of the .NET Launch Condition

Solutions: