You are designing a Windows Presentation Foundation (WPF) application. The WPF application displays indicators to compare your company’s past performance to the current day’s operations data. The WPF application accesses historic data from your company’s data warehouse through a Web…

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…

You are modifying an existing Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The WPF application uses a wizard to capture data and insert the data into a database. The database includes one parent table and many child…

You are developing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010. The application contains a grid that displays customer data stored in a database table. Users report that the grid takes a long time to…

You are designing a Windows Presentation Foundation (WPF) application that will process data. The data is stored in a Microsoft SQL Server 2008 database. You plan to access the data by using ADO.NET Entity Framework 4. You need to recommend…

You are analyzing an application that uses Microsoft .NET Framework 4 and Microsoft SQL Server 2008. The application is used to maintain an inventory database and is accessed from several remote Windows client applications. The application frequently updates multiple rows…

You are designing a .NET Framework 4 solution. The solution contains a Windows Presentation Foundation (WPF) application and a Windows Communication Foundation (WCF) Web service. The WPF application uses the WCF Web service to store data in a Microsoft SQL…

You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application. The WPF application will access data stored in a Microsoft SQL Server 2008 database by using the solution’s data access tier. The data…

You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008. You have designed the application to use the ADO.NET Entity Framework for the Data Access Layer…