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

1. ----
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) Move the initialization code to the code-behind of the main window.
B) Launch a custom splash screen by using a Window object. When the initialization completes, launch the main window from the splash screen.
C) Create a SplashScreen object. Display the object in the code-behind of the App.xaml file.
D) Compile an image into the WPF application with a Build Action value of SplashScreen.

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

3. You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application and a Windows Workflow Foundation (WF) component. The WF component contains functionality to incorporate frequently changing rules.
You need to recommend a tier for the deployment of the WF component that will not degrade the performance of the WPF application.
Which tier should you recommend?

A) The data tier
B) The data access tier
C) The business tier
D) The presentation tier

4. You are reviewing an existing Windows application that uses .NET Framework 4.
When the user clicks a button, the application sequentially processes thousands of image
files contained in a directory.
The user interface becomes unresponsive while the application processes the files.
You have the following requirements:
---
Modify the button's click event.
Increase application throughput by processing multiple image files concurrently.
Ensure that the user interface remains responsive while the application processes
the image files.
You need to recommend an approach for meeting the requirements.
What should you recommend?

A) Iterate over the image files by using the Parallel.ForEach() method. For each image file, start a separate thread that processes the image file, by using the Thread.Start()method.
B) Use the Parallel.ForEach() method to process the images concurrently.
C) Use the ThreadPool.QueueUserWorkItem() method to queue up a single work item that uses the Parallel.ForEach () method to process the image files concurrently.
D) Iterate over the image files. For each image file, use the Process.Start() method to launch a console application that processes the image file.

5. You are developing a Windows application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
New features that require changes to be made to the database schema are added to the application every week.
You need to ensure that the changes made to the database schema do not require the application to be recompiled.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Build a storage model and use it to access data from the business entities.
B) Build a conceptual model and use it to access data from the business entities.
C) Modify the xml mapping file when the schema changes occur.
D) Modify the conceptual schema xml file when the schema changes occur.

Solutions: