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

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

2. You are designing a Windows Presentation Foundation (WPF) application that uses .NET
Framework 4.
The WPF application will be deployed to 5,000 users worldwide.
You need to recommend an approach for identifying problems that users will experience.
Which testing methodology should you recommend?

A) Usability testing
B) Acceptance testing
C) Functional testing
D) Integration testing

3. You are designing a Windows Presentation Foundation (WPF) application that accesses a business tier. The business tier is implemented as a Windows Communication Foundation (WCF) service and stores data in a Microsoft SQL Server 2008 database.
The WCF service will be accessed by external applications that do not use the .NET Framework.
You need to recommend an approach for passing data between layers.
What should you recommend?

A) Use custom .NET classes with XML serialization.
B) Use the DiffGram XML format.
C) Use custom .NET classes with binary serialization.
D) Use a DataSet object.

4. You are designing a Windows Presentation Foundation (WPF) application. The application data files have the file name extension.abc.
The WPF application installer must meet the following requirements:
----
Add a shortcut to the desktop.
Install infrequently used assemblies on demand.
Associate the .abc file name extension with the WPF application.
Roll back the installation in the event of a failure.
You need to recommend a deployment method.
What should you recommend?

A) ClickOnce
B) XCopy
C) Background Intelligent Transfer Service (BITS)
D) Windows Installer

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

Solutions: