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Recertification for MCSD: Windows Store Apps using C#

Question No: 51 – (Topic 9)

You are developing a Windows Store app. The app has the following requirements:

->Files must be stored on a device#39;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.)

  1. Removable devices

  2. App data locations

  3. User#39;s download folder

  4. Documents library

  5. App install directory

Answer: A,E

Explanation: http://msdn.microsoft.com/en-us/library/windows/apps/hh967755.aspx

Question No: 52 – (Topic 9)

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?

  1. Use a toast notification.

  2. Use the SetText() method of the DataPackage object.

  3. Set the LegalInformation property of the DataPackage object.

  4. Use the FailWithDisplayText() method of the DataRequest object.

Answer: D

Explanation: Use the FailWithDisplayText method when your app is unable to supply a DataPackage to a target app. This method cancels the share operation and supplies a text message to the target app. The target app can then display this text to the user to explain why the share operation failed.

Question No: 53 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.)

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Answer:

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Explanation:

Dumps4Cert 2018 PDF and VCE

C:\Users\Kamran\Desktop\image.jpg

Question No: 54 – (Topic 9)

You are designing a Windows Store app that creates large amounts of temporary binary data each time it is run.

You need to ensure that data is persisted while the app is running but deleted when the app is closed.

Which app data storage mechanism should you use? (Each correct answer presents a complete solution. Choose all that apply.)

  1. a temporary app data store

  2. the app files of the local app data store

  3. the app settings of the local app data store

  4. a roaming app data store

Answer: A,B,C

Explanation: http://msdn.microsoft.com/en-us/library/windows/apps/hh464917.aspx

Question No: 55 – (Topic 9)

You are developing a Windows Store app that will be used as an IT support ticket system. You need to ensure that user settings are available to only a single device.

Which property should you use?

  1. Windows.Storage.ApplicationData.Current.LocalFolder

  2. Windows.Storage.ApplicationData.Current.LiveSyncFolder

  3. Windows.Storage.ApplicationData.Current.RoaimingFolder

  4. Windows.Storage.ApplicationData.DefaultRemoteFolder

Answer: A

Explanation: http://msdn.microsoft.com/en- us/library/windows/apps/windows.storage.applicationdata.aspx

Question No: 56 – (Topic 9)

You are developing a Windows Store app. You have the following requirements:

->Enable the app to receive shared data.

->Save the sharing settings for future use.

You need to ensure that the requirements are met. What should you implement?

  1. a play to charm

  2. a Share target

  3. a share charm

  4. a QuickLink

Answer: D

Explanation: * When people swipe from the side of the screen and tap the Share charm, the Share pane appears with a list of apps people can use to share their content. This list includes any installed apps that are “share targets” for a particular data format.

The links at the top of the image, called QuickLinks, allow users to complete specific share tasks directly.

* QuickLink class

Applies to Windows and Windows Phone

Represents shortcuts that help users share content with the apps they use most.

Question No: 57 HOTSPOT – (Topic 9)

You are developing a Windows Store app to check the weather.

You need to ensure the app polls an external web service once per hour for tile updates. You have the following code:

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Which code snippet should you insert in Target 1 to complete the code? (To answer, select the correct code snippet from the dropdown list in the answer area.)

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Answer:

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Dumps4Cert 2018 PDF and VCE

Explanation:

http://msdn.microsoft.com/en- us/library/windows/apps/windows.ui.notifications.tileupdater.startperiodicupdate.aspx

Question No: 58 DRAG DROP – (Topic 9)

You are developing a Windows Store app that caches user application data in the local data store.

The app must create a setting named UserName within a container named UserSettings. The app must store the user name in the local store.

You need to meet the requirements.

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How should you complete the code segment? (To answer, drag the appropriate options to the correct location or locations. Each option 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:

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Explanation: Localsettings Values Localstore Always

http://msdn.microsoft.com/en- us/library/windows/apps/windows.storage.applicationdata.localsettings.aspx http://msdn.microsoft.com/en- us/library/windows/apps/windows.storage.applicationdatacontainer.aspx http://msdn.microsoft.com/en- us/library/windows/apps/windows.storage.applicationdatacreatedisposition.aspx

Question No: 59 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:

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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.)

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Answer:

Dumps4Cert 2018 PDF and VCE

Question No: 60 – (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?

  1. Handle the RecordLimitationExceeded event.

  2. Assign a handler lo the DefaultAudioCaptureDeviceChanged event.

  3. Handle the AudioTransferRequested event.

  4. Call the StopRecordAsyncO method.

Answer: C

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