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Microsoft 070-491 Exam Syllabus Topics:

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

1. You are developing a Windows Store app to view MP4 videos.
You need to ensure that when a user double-clicks an MP4 file, the app starts and plays back the video automatically.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Add an OnFileActivated event handler to the App.xaml.cs file.
B) Add the Videos Library capability to the Appxmanifest file.
C) Modify the OnActivated event of the App.xaml.cs file to pass ProtocolActivatedEventArgs to the page if ActivatedEventArgs.Kind == ProtocolActivatedEventArgs.
D) Add a File Type Associations declaration to the Appxmanifest file.
E) Add an AutoPlay Content declaration to the Appxmanifest file.

2. You are developing a Windows Store app that beeps when a device is turned upside down.
You need to identify which type of sensor to use for the app.
Which sensor should you identify?

A) Gyrometer
B) Inclinometer
C) Accelerometer
D) GPS

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

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

5. DRAG DROP
You are developing a Windows Store social media app. The app communicates with the server by using a secure web service.
You need to ensure that users can securely store and retrieve web service credentials. You have the following code:

Which code snippets should you insert in target 1 and target 2 to complete the code? (To answer, drag the appropriate code snippets to the correct targets in the answer area. Each code snippet 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: