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

1. 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 access tier must also be available from within Microsoft Excel 2010.
You need to recommend a technology for accessing the data access tier.
Which technology should you recommend?

A) LINQ to XML
B) LINQ to SQL
C) WCF Data Services
D) ADO.NET Entity Framework 4

2. You are designing a Windows Presentation Foundation (WPF) application.
The WPF application must run against either Microsoft SQL Server 2008 or a third-party
database system without duplicating data accesslogic.
You need to recommend a data access technology.
What should you recommend?

A) ADO.NET using DataSet objects and SqlDataReader objects
B) ADO.NET using DataSet objects and SqIDataAdapter objects
C) LINQ to SQL
D) LINQ to Entities

3. You are working with an existing Windows Presentation Foundation (WPF) application in Microsoft Visual Studio 2010. The WPF application requires approximately one minute to initialize before displaying its main window.
You have the following requirements:
---
Immediately display a splash screen when the WPF application launches. Allow for the display of an initialization progress bar on the splash screen. Close the splash screen when the WPF application is ready to display the main window.
You need to recommend an approach for meeting the requirements.
What should you recommend?

A) Create a SplashScreen object. Display the object in the code-behind of the App.xaml file.
B) Move the initialization code to the code-behind of the main window.
C) Compile an image into the WPF application with a Build Action value of SplashScreen.
D) Launch a custom splash screen by using a Window object. When the initialization completes, launch the main window from the splash screen.

4. You are updating a Windows desktop client application that was created by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application displays data derived from several database queries. The display takes a long time to update.
The application currently uses a BackgroundWorker thread and a Parallel.ForEach statement on that thread.
Users have requested a modification to the program that would allow them to interrupt the display of data and begin processing a new and different query.
You decide to provide a new Stop button on the user interface (UI) to allow the user to terminate the current data display and initiate the new query. The main UI thread must be notified when the current data processing is terminated so that the new query can be started.
You need to implement the Stop button event handler.
What should you do?

A) Use the DoWork handler of the worker thread and test a shared status value.
Use a break statement to terminate the Parallel.ForEach loop.
B) Use the DoWork handler of the worker thread and test a shared status value.
Use a loopStatus.Stop() statement to terminate the Parallel.ForEach loop.
C) Use the DoWork handler of the worker thread and test a shared status value.
Use the Thread.Abort () statement to terminate the worker thread.
Start a new BackgroundWorker thread from the main UI thread.
D) Use a CancelAsync() function to cancel the worker thread.
In the Parallel.ForEach loop, test the CancellationPending property.
If the property is set to true, perform the following tasks:
Write a loopStatus.Stop() statement.
Set the DoWorkEventArgs.Cancel property to true.
Use a return statement to exit from the loop.

5. You are designing an n-tier solution that connects to a Microsoft SQL Server 2008 database.
You plan to deploy the database to development machines and to a staging database server from within Microsoft Visual Studio 2010. You plan to set up separate build configurations for development and staging. You also plan to deploy to multiple production database servers managed by an outside vendor.
You must not allow the outside vendor to access the Visual Studio projects.
You need to recommend an approach for configuring and deploying the production database servers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Use a SQL Server 2008 Database Project.
B) Use a Visual Basic SQL CLR Database Project.
C) Use VSDBCMD to deploy the production databases.
D) Use SQL Server 2008 Management Studio to deploy the production databases.

Solutions: