Online Access Free 70-518 Exam Questions

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

You are designing a Windows Presentation Foundation (WPF) application that will be used to display real-time data from a Microsoft SQL Server 2008 database.
You need to recommend an approach for displaying the datA.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

• A.Implement OneWay binding between the controls in the WPF application and objects in the data layer.
• B.Use a System.Runtime.Caching object in the data layer with a sliding expiration, and query the database when the Cache object expires.
• C.Implement OneWayToSource binding between the controls in the WPF application and objects in the data layer.
• D.Use a SqlCacheDependency object in the data layer to query the database when a change is detected.

You are designing a Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The application uses a subset of the functionality provided by a third-party COM component that will be replaced later.
The application developers must have access to only the required subset of functionality.
You need to recommend a solution that meets the requirements.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

• A.In the adapter assembly, use an embedded interop reference.
• B.Create an adapter assembly that exposes the required subset of the COM component functionality.
• C.Create an adapter assembly that exposes the entire functionality of the COM component.
• D.In the adapter assembly, use a standard interop reference.

You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
The application will run on Windows 7-based kiosks that are located indoors and outdoors. The kiosk displays have a photo sensor that will update the application with the current ambient luminosity.
You need to ensure that the user interface (UI) of the application dynamically changes the application theme based on the ambient luminosity.
What should you use?

• A.A RenderTransform control applied to the root canvas
• B.An attached behavior to change a merged resource dictionary
• C.A visual state manager to add VisualStateGroup objects
• D.A VisualBrush control to paint the UI

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