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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) Secure the Web service by using SSL.
C) Implement data validation at the service layer and reject invalid datA.
D) Implement data validation on the client and reject invalid datA.

2. ---
You are designing a distributed Windows Presentation Foundation (WPF) application. You have the following requirements:
Ensure that all errors are logged in a central location.
Ensure that the WPF application logs related errors within a single transaction.
Secure error information during transmission.
You need to recommend a strategy for collecting error information.
What should you recommend?

A) Write the information to the Windows Application log on each client system. Use Windows Error Reporting to collect the results.
B) Create a Windows Communication Foundation (WCF) service. Use the wsHttpBinding protocol to transport the information.
C) Create a Windows Communication Foundation (WCF) service. Use the basicHttpBinding protocol to transport the information.
D) Write the information to the Windows Application log on each client system. Use Windows Management Instrumentation (WMI) to collect the results.

3. 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).
Each method in the middle tier will contain the following catch block.
Catch(ArgumentNullExceptione)
{
throw e;
}
When testing the application, you discover that all ArgumentNullExceptions exceptions that occur in the middle tier do not contain accurate stack trace information.
You need to design the exception handling strategy for the application.
What should you do?

A) Create an ArgumentNullException handler in the UI tier.
B) Use a DispatcherUnhandledExceptionEvent handler in the UI tier.
C) Use a DispatcherUnhandledExceptionEvent handler in the middle tier.
D) Remove the exception parameter from the ArgumentNullException handler.

4. You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application is used mostly in a disconnected scenario. The application requires offline data from a Microsoft SQL Server 2008 database. When the application connects to the network, data will be modified and synchronized.
You need to ensure that the application does not access the database server directly to synchronize data when online.
Which technology should you use?

A) SQL Server Merge Replication
B) Remote Data Access
C) WCF Data Service
D) ADO.NET Sync Services

5. You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You need to use a replacement culture for the application at runtime.
You also need to ensure that the information in the custom culture will be available to the application.
Which two tasks should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Register the replacement culture by using the CultureInfo class.
B) Call the Save method of the CultureAndRegionInfoBuilder class instance.
C) Restart the process that is displaying the user interface.
D) Register the replacement culture by using the CultureAndRegionInfoBuilder class.

Solutions: