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You create a Microsoft Windows Installer file for a Windows Presentation Foundation (WPF) application that requires Microsoft .NET Framework 4.
You need to ensure that the installation starts only if .NET Framework 4 is already installed on the computer.
What should you do?

• A. Set the Version property of Windows Installer to .NET Framework 4.
• B. Use a custom action.
• C. Set the MinVersion property to .NET Framework 4.
• D. Set the Version property of the Launch Condition to .NET Framework 4.

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You write the following code fragment.
<StackPanel TextBox.PceviewTextInput="StackPanel_PreviewTextInput">
<TextBox Name="TxtBoxA"/>
<TextBox Name="TxtBoxB"/>
<TextBox Naroe="TxtBoxC"/>
</StackPanel>
You create an event handler named StackPanel_PreviewTextInput. You also have a collection of strings named Keywords.
You need to ensure that TxtBoxA and TxtBoxB do not contain any of the strings in the Keywords collections.
Which code segment should you use?

• A. Handled = True End If End Sub
• B. Handled = True End If End Sub
• C. Handled = False End If End Sub
• D. Private Sub StackPanel_PreviewTextInput(sender As Ctoject, e As TextCompositionEventArgs) Dim feSource As FrameworkElement = TryCast(e.Source, FrameworkElement) If feSource.Name = "TxtBoxA" OrElse feSource.Name = "TxtBoxB" Then For Each keyword As String In Keywords If e.Text.Contains(keyword) Then e.Handled = True Return End If Next
• E. Handled = False End If End Sub
• F. Private Sub StackPanel_PreviewTextInput(sender As Object e As TextCompositionEventArgs) Dim feSource As FrameworkElement = TryCast(e.Source, FrameworkElement) If feSource.Name = "TxtBoxA" OrElse feSource.Name = "TxtBoxB" Then For Each keyword As String In Keywords If e.Text.Contains(keyword) Then e.Handled False Return End If Next
• G. Private Sub StackPanel_PreviewTextInput(sender As Object, e As TextCompositionEventArgs) Dim feSource As FrameworkElement = TryCast(sender, FraroeworkElement) If feSource.Name = "TxtBoxA" OrElse feSource.Name = "TxtBoxB" Then For Each keyword As String In Keywords If e.Text.Contains(keyword) Then e.Handled = True Return End If Next
• H. Private Sub StackPanel_PreviewTextInput(sender As Ctoject, e As TextCompositionEventArgs) Dim feSource As FrameworkElement = TryCast(sender, FrameworkElement) If feSource.Name - "TxtBoxA" OrElse feSource.Name - "TxtBoxB" Then For Each keyword As String In Keywords If e.Text.Contains(keyword) Then
• I. Handled = False Return End If Next

You are developing a Windows Presentation Foundation (WPF) application.
The MainWindow.xaml file contains a TreeView control with a DataTemplate that displays three levels in the following hierarchical order:
1. Household
a.Parents
i.Children
You need to ensure that a Menu control is configured to display the same hierarchy.
What should you do?

• A. Set the ItemSource for the Menu control to the ResourceKey value of the TreeView's ItemTemplate.
  Set the ResourceKey for the Menu control's ItemTemplate to the Key value for the DataTemplate.
• B. Set the ItemSource for the Menu control to the ItemSource value of the TreeView control.
  Set the ResourceKey for the Menu control's ItemTemplate to the Key value for the DataTemplate.
• C. Set the ItemSource for the Menu control to the ItemSource value of the TreeView control.
  Set the ResourceKey for the Menu control's ItemTemplate to the ResourceKey value for the TreeView's ItemTemplate.
• D. Set the ItemSource for the Menu control to the ResourceKey value of the TreeView's ItemTemplate.
  Set the ResourceKey for the Menu control's ItemTemplate to the ItemSource value for the TreeView.

You develop a Windows Presentation Foundation (WPF) application. The application runs
on 64-bit machines only.
The application architects want to store application settings in the registry. The users do not have write access to these settings. These application settings apply to everyone using the application.
You need to read the application settings successfully from the registry.
Which code segment should you use?

• A. RegistryKey
  *OpenBaseKey{RegistryHive.LocalMachine, RegistryView.Registry64)
  *OpenSubKey(@"Sofware\MyProgram")
  *GetValue("ConnectionString") ;
• B. RegistryKey
  *OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64)
  *OpenSubKey(@"Software\MyProgram")
  *GetValue("ConnectionString");
• C. RegistryKey
  *OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64)
  *CreateSubKey(@"Software\MyProgram")
  *GetValue("ConnectionString");
• D. RegiatryKey
  *OpenBaseKey(RegistryHive.LocalMachine. RegistryView.Registry64)
  *CreateSubKey(@"Software\MyProgram")
  *GetValue("ConnectionString") ;

You are developing a Windows Presentation Foundation (WPF) application.
The application will be used by users in France and users in Germany.
The Window element for the main window contains the following declaration:
<Window xmlns:properties="ctr-namespace : LocalizedApp. Properties"...
You need to ensure that the application appears in the language of each user.
What should you do?

• A. Add a content control to the Window element.
• B. Modify the Application.Resources section of the App.xaml file.
• C. Add language entries to the appSettings section of the Machine.config file.
• D. Add language-specific resource files.