70-518 무료 덤프문제 온라인 액세스

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.Remove the exception parameter from the ArgumentNullException handler.
• C.Use a DispatcherUnhandledExceptionEvent handler in the middle tier.
• D.Use a DispatcherUnhandledExceptionEvent handler in the UI tier.

You are analyzing a Windows client application that uses Microsoft Visual Studio 2010 and
Microsoft SQL Server 2008.
The application updates two database tables from the main user interface (UI) thread.
You need to ensure that the following requirements are met:
---
The database tables are either updated simultaneously or not updated at all.
Users are notified of the success or failure of the updates.
Users are able to perform other tasks during the update process.
What should you do?

• A.Use TransactionScope in a using block on the UI thread.
  Create a DependentTransaction object within the block and pass the object to the BackgroundWorkerReportProgress method.
  Use the object in the ReportProgress method to create a new TransactionScope block.
• B.Use TransactionScope in a using block on the main thread.
  Create a BackgroundWorker thread within the block.
  Move the database updates to the BackgroundWorkerDoWork method.
• C.Use TransactionScope in a using block on the UI thread.
  Batch the database updates by setting the DbDataAdapter.UpdateBatchSize property to 2.
• D.Move the database update logic to a BackgroundWorker thread.
  Ensure that the thread is enclosed in a TransactionScope using block in the BackgroundWorkerDoWork method

You are designing a sales and inventory tracking system by using Microsoft Visual Studio 2010 and Microsoft SQL Server 2008.
The sales, inventory, and shipping tables will reside in different databases on different database servers.
You need to ensure that the tables are updated simultaneously.
What should you do?

• A.Use Microsoft Sync Framework.
• B.Use Distributed transactions.
• C.Use the ADO.NET Entity Framework.
• D.Use LINQ to SQL.

You design a Windows Presentation Foundation (WPF) application that interacts with a Windows Communication Foundation (WCF) Web service. The WCF Web service throws exceptions of type Exception.
The WPF application crashes when the WCF Web service throws an exception.
You need to recommend an error-handling strategy that allows users to submit updated data to the WCF Web service without restarting the WPF application.
What should you recommend?

• A.Modify the Web service to throw custom exceptions derived from the Exception class.
• B.Modify the Web service to throw exceptions of type FaultException.
• C.Modify the Web service to throw exceptions of type InvalidOperationException.
• D.Modify the Web service to throw custom exceptions derived from the ApplicationException class.

You are designing a Windows Presentation Foundation (WPF) application.
The application will be localized into multiple languages.
You need to recommend an approach for preparing the application for localization.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

• A.Define aUICulture element for each language in the project file.
• B.Add an application setting for each language to the App.config file.
• C.Translate the contents of the appropriate XAML elements into each localization language.
• D.Add UID attributes to language-specific elements in the XAML file.