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

1. You are developing a Windows Store app.
You declare a Search declaration in the app manifest and you add a search results page.
You plan to display search results by using a Query Text property that derives from EventArgs,
You need to ensure that users can use the Search charm to search for content within the app.
What should you do?

A) Add an event handler for the SearchPane.QuerySubmitted event to MainPage.xaml.es. Register the event handler in the OnWindowCreated method in MainPage.xaml.es.
B) Add an event handler for the SearchPane.QueryChanged event to MainPage.xaml.es. Register the event handler in the OnWindowCreated method in MainPage.xaml.es.
C) Add an event handler for the SearchPane.QuerySubmitted event to App.xaml.cs. Register the event handler in the constructor of the page.
D) Add an event handler for the SearchPane.QuerySubmitted event to App.xaml.cs. Register the event handler in the OnWindowCreated method of the page.

2. You are developing an app that will be used to purchase and share music. Users will be allowed to share only content that they have purchased.
You need to display a message within the Share charm when users attempt to share content that they have not purchased.
What should you do?

A) Use the FailWithDisplayText() method of the DataRequest object.
B) Use the SetText() method of the DataPackage object.
C) Set the LegalInformation property of the DataPackage object.
D) Use a toast notification.

3. You are developing a Windows Store app named VideoPlayer.
The app will provide user with the ability to select video files by using the file picker and to play the video.
You need to recommend a solution for the app that meets the following requirements:
- If the app is terminated while playing a video, the next time the app starts, the
video must play.
- The app must minimize the amount of storage space used.
- The app must NOT request any capabilities.
What should you include in the recommendation?

A) Store the StorageFile.Path property in ApplicationData.Current.LocalSettings.
B) Add the file to AccessCache.StorageApplicationPermissions.MostRecentlyUsedList.
C) Store the video in ApplicationData.Current.RoamingFolder.
D) Store the video in ApplicationData.Current.LocalFolder.

4. You are developing a Windows Store app that will provide users with the ability to create photos by using the hardware on a device.
Once the users create the photos, they can save the photos to the Pictures library.
If the users sign in by using a Microsoft account, they can grant other users remote access
to the photos.
You need to identify which capabilities must be enabled for the app.
Which three capabilities should you identify? (Each correct answer presents part of the
solution. Choose three.)

A) Webcam
B) Pictures Library
C) Internet (Client & Server)
D) Private Networks (Client & Server)
E) Proximity
F) Enterprise Authentication

5. DRAG DROP
You are developing a Windows Store app.
The app will provide users with the ability to play music remotely on another user's device
and then the other users will guess the name of the song.
You need to access the music storage and to retrieve files and folders.
You have the following code:

Which elements should you include in Target 1, Target 2, Target 3 and Target 4 to complete the code? (To answer, drag the appropriate elements to the correct targets in the answer area. Each element 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.)

Solutions: