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

1. 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.

2. You need to implement the requirements for the playback of media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A) Add the following line of code at line MC05.
ptMgr.SourceRequested += SourceRequestHandler;
B) Add the following line of code at line MC02.
private void ShowPlayTo()
{
Windows.Media.PlayTo.PlayToManager.ShowPlayToUI();
}
C) Add the following line of code at line MC10.
ptMgr.PlayRequested += SourceRequestHandler;
D) Add the following line of code at line MC06.
ptMgr.DefauitSourceSelection = false;

3. HOTSPOT
You need to verify whether the app conforms to the Windows Store requirements.
What command should you run? (To answer, select the appropriate options in the answer area.)

4. You are developing a Windows Store app.
The app will store user names and passwords by using Windows Azure.
You need to recommend a method to store the passwords. The solution must minimize the likelihood that the passwords will be compromised.
Which algorithm should you recommend using?

A) AES
B) DES
C) 3DES
D) SHA512

5. DRAG DROP
You are developing a Windows Store app.
You need to create and run unit tests for the app.
Which three actions should you perform in sequence? (To answer, move the appropriate
actions from the list of actions to the answer area and arrange them in the correct order,)

Solutions: