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Microsoft Recertification for MCSD: Windows Store Apps using C# Sample Questions:

1. You are developing a Windows Store app named GeoLoc. You have the following code:

When you run the app on some devices, you receive the following error message: "An exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll but was not handled in user code."
You need to resolve the issue that causes the exception to occur.
Which file should you modify?

A) App.xaml
B) Package.appxmanifest
C) Geoloc.csproj
D) Assemblyinfo.es

2. DRAG DROP
You are developing a Windows Store app.
The following code segment defines an event procedure. (Line numbers are included for reference only.)

You need to define a custom help setting in the event procedure.
Which three code segments should you insert in sequence at line 03? (To answer, move the appropriate code segments to the answer area and arrange them in the correct order.)

3. You are developing a Windows Store app. The app has the following requirements:
- Files must be stored on a device's file system so other Windows Store apps can access them. - Additional configuration must be performed to make the location of the files available to other Windows Store apps.
You need to meet the requirements.
Where should you store the files? (Each correct answer presents a complete solution. Choose all that apply.)

A) Removable devices
B) App install directory
C) Documents library
D) App data locations
E) User's download folder

4. DRAG DROP
You are developing a Windows Store app.
You need to ensure that the app meets the following requirements:
- When the app is started, the app bar must appear at the top of the app. - When the app is resized, if the new width of the app is less than 400 pixels, the app bar must be hidden. Users must be able to show the app bar by right-clicking.
- When the app is resized, if the new width is greater than 400 pixels, the app bar must be visible. Users must be able to hide the app bar by right-clicking, pressing Windows + Z, or swiping in from the top edge of the screen.
You have the following XAML markup in a file named MainPage.xaml. (Line numbers are included for reference only.)

You have the following code in a file named MainPage.xaml.es. {Line numbers are included for reference only.)

Which code segments should you insert in MainPage.xaml and MainPage.xaml.cs? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

5. You are developing a Windows Store app.
The app contains a page named MainPage. The page contains a media element named videoPlayer.
You need to provide users with the ability to play the contents of videoPlayer on different devices by using the Devices charm.
Which two code segments should you add to the OnNavigateTo event handler on MainPage? (Each correct answer presents part of the solution. Choose two.)

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

Solutions: