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Q41. - (Topic 9)
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. Proximity
D. Internet (Client & Server)
E. Private Networks (Client & Server)
F. Enterprise Authentication
Answer: A,B,D
Explanation: A: The webcam capability provides access to the webcam’s video feed, which allows the app to capture snapshots and movies from a connected webcam.
B: The picturesLibrary capability provides programmatic access to the user's Pictures, allowing the app to enumerate and access all files in the library without user interaction. This capability is typically used in photo playback apps that need to access the entire Pictures library.
D: Internet and public networks The internetClient capability provides outbound access to the Internet and public networks through the firewall. Almost all web apps use this capability. The internetClientServer capability provides inbound and outbound access to the Internet and public networks through the firewall.
http://msdn.microsoft.com/en-us/library/windows/apps/hh464936.aspx
Q42. DRAG DROP - (Topic 9)
You are developing a Windows Store app.
The app has the following accessibility requirements: . The automation name of each text box must be the same as the text box caption. . Each Label element must be associated with its corresponding text box. You need to create an interface that meets the requirements.
You have the following code:
Which code snippets should you include 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.)
Answer:
Q43. - (Topic 3)
You place a breakpoint at line MP31 in the app.
When you debug the app, the debugger continuously catches a
System.UnauthorizedAccess exception.
You need to resolve the exception.
What should you do?
A. Wrap lines CE43 through CE46 in a try-catch statement.
B. At line MP10, change the code segment to the following line of code.
read if(cameraUI != null)
C. Move line CE09 to CE16.
D. At line PA25, insert the following line of code. <Capability Name="picturesLibrary"/>
Answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/windows/apps/hh464936.aspx
Q44. DRAG DROP - (Topic 9)
You are developing a Windows Store app named App1.
You need to ensure that App1 meets the following requirements:
. Must be able to display a list of items in rows and columns.
. Must be able to display items one at a time.
What should you use for each requirement? (To answer, drag the appropriate elements to the correct requirements. 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.)
Answer:
Q45. - (Topic 9)
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 the Videos Library capability to the Appxmanifest file.
B. Modify the OnActivated event of the App.xaml.cs file to pass ProtocolActivatedEventArgs to the page if ActivatedEventArgs.Kind == ProtocolActivatedEventArgs.
C. Add a File Type Associations declaration to the Appxmanifest file.
D. Add an OnFileActivated event handler to the App.xaml.cs file.
E. Add an AutoPlay Content declaration to the Appxmanifest file.
Answer: C,D
Explanation: http://msdn.microsoft.com/en-us/library/windows/apps/xaml/jj191724.aspx
Q46. - (Topic 9)
You are developing a Windows Store app that allows users to record audio and video files and save them to their devices.
You have the following requirements:
. The audio and video files must be shorter than three minutes in duration.
. The app must finalize recording automatically when the time limit is reached.
. You cannot use continuous polling to test when the time limit is reached.
You need to ensure that the app meets the requirements.
What should you do?
A. Handle the RecordLimitationExceeded event.
B. Assign a handler lo the DefaultAudioCaptureDeviceChanged event.
C. Handle the AudioTransferRequested event.
D. Call the StopRecordAsyncO method.
Answer: C
Q47. DRAG DROP - (Topic 9)
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.)
Answer:
Q48. - (Topic 5)
You need to protect the metadata for the secure documents.
Which protection descriptor should you use for the DataProtectionProvider object?
A. SID
B. WEBCREDENTIALS=userrpassword
C. LOCAL=user
D. USER=current
Answer: C
Explanation: http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.cryptography.dataprotection.dataprotectionprovi der.aspx
Q49. - (Topic 9)
You are developing a Windows Store app that will provide users with the ability to subscribe to content by using in-app purchases.
You need to test the in-app purchase functionality of the app before you deploy the app to the Windows Store.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Modify the Package.appxmanifest file.
B. Use the CurrentAppSimulator class.
C. Modify the App.xaml file.
D. Modify the Windowsstoreproxy.xml file.
E. Use the CurrentApp class.
Answer: B,E
Q50. DRAG DROP - (Topic 9)
You are developing an augmented reality app.
You need to retrieve the direction to which the device points.
You have the following code:
Which code snippets should you include in Target 1, Target 2 and Target 3 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.)
Answer:
