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

1. You are designing an application by using Windows Presentation Foundation (WPF), Microsoft .NET Framework 4, and Microsoft SQL Server 2008.
The application will contain several forms that include custom data validators.
You need to ensure that data is validated before the database updates occur. You also need to ensure that the validation logic can be reused.
How should you design the validation?

A) Subscribe to the TextChanged event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs.
B) Subscribe to the MouseLeave event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs.
C) Implement the INotifyPropertyChanged interface in the data class of the application.
D) Implement the IDataErrorlnfo interface in the data class of the application.

2. You are developing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to use Microsoft Sync Framework to synchronize the data stored in a local Microsoft SQL Server Compact Edition database with the data stored in a centralized SQL Server 2008 database.
Four columns are added to each table involved in the synchronization process to track changes to the database. You add the following four columns to the database table.

Users report that the synchronization process is not always successful. You need to ensure that the application synchronizes data successfully. What should you do?

A) Option B
B) Option D
C) Option C
D) Option A

3. You are reviewing multiple Windows Presentation Foundation (WPF) applications that capture postal addresses. The WPF applications have different appearances and functionality. Each WPF application uses a different control to visualize the captured addresses.
You plan to modify all WPF applications to allow developers to visualize addresses by using a common template.
You need to recommend an approach for standardizing the visualization of captured addresses.
What should you recommend?

A) Use a DataTemplate object.
B) Use a ControlTemplate object.
C) Use an ItemsPanelTemplate object.
D) Use a FrameworkTemplate object.

4. 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 access logiC.
You need to recommend a data access technology.
What should you recommend?

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

5. 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 display.
You plan to implement data caching to improve loading time for the grid.
You need to ensure that the cached data expires when the customer data is updated.
What should you do?

A) Use the System.WeB.Caching.CacheDependency class.
B) Use a static variable to store the Grid object.
C) Use the ADO.NET Entity Framework.
D) Use the System.Runtime.Caching.SqlChangeMonitor class.

Solutions: