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Exam Code: 70-485
Exam Name: Advanced Windows Store App Development Using C#
Certification Provider: Microsoft
Corresponding Certification: MCSD: Windows Store Apps

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QUESTION 81
Drag and Drop Question
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,)

Answer:

QUESTION 82
Drag and Drop Question
You are developing a Windows Store app.
The app allows users to purchase additional features from within the app.
You need to run the EnableExtendedFeatures() method if the user has purchased extended features.
How should you complete the code segment? (To answer, drag the appropriate lines of code to the correct location or locations. Each line of code 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:

QUESTION 83
You are preparing a Windows Store game update for deployment.
Game performance must be analyzed by using a profiling tool.
You need to ensure that you collect the most accurate performance data for the analysis.
Which Visual Studio project configuration options should you use? (Each correct answer presents part of the solution. Choose all that apply.)

A.    Choose the Simulator deployment target for the game.
B.    Use the Release build of the game.
C.    Use the Debug build of the game.
D.    Choose the Local Machine deployment target for the game.

Answer: BD
Explanation:
http://msdn.microsoft.com/en-us/library/hh696631.aspx

QUESTION 84
You are preparing to deploy a Windows Store app to the marketplace.
You need to ensure that unhandled errors and exceptions are never displayed to users.
What should you do?

A.    In the app object, wrap the call to the Window.Current.Activate() method in a try-catch statement to
handle any exceptions that occur.
B.    Open the Exceptions window in Visual Studio and clear the check box for unhandled exceptions for
the Common Language Runtime.
C.    Write a handler for the UnhandledException event and set the Handled property on the UnhandledException
EventArgs object to true.
D.    Write a handler for the UnhandledException event and set the CancelBubble property on the
UnhandledExceptionEventArgs object to true.

Answer: C
Explanation:
http://msdn.microsoft.com/en-us/library/system.unhandledexceptioneventargs.aspx

QUESTION 85
Drag and Drop Question
You are collecting metrics from a Windows Store game that has been deployed to the Windows Store for a year.
You need to collect data to analyze the quality and success of the game.
Which metric should you use for each statistic? (To answer, drag the appropriate metrics to the correct location or locations in the answer area. Each metric 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:

QUESTION 86
Hotspot Question
You are developing a Windows Store app that allows users to copy music from their local computers to removable storage. The app displays songs grouped by the month the song was downloaded and allows individual songs to be copied to the removable storage device.
The user interface for selecting and copying songs uses data binding.
You need to load and return songs in a format appropriate for data binding.
How should you complete the code segment? (To answer, select the appropriate line of code from each drop-down list in the answer area.)

Answer:

QUESTION 87
Drag and Drop Question
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.
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:

QUESTION 88
Hotspot Question
You are developing a Windows Store app.
You need to encrypt data.
How should you complete the code segment? (To answer, select the appropriate line of code from each drop-down list in the answer area.)

Answer:

QUESTION 89
Drag and Drop Question
You are developing a Windows Store app that downloads large files from the Internet by using background tasks.
The app includes the following:
– TaskInstance is an instance of the IBackgroundTask interface that provides access to a background task instance.
– DownloadFilesAsync() is the asynchronous method that performs the download.
You need to ensure that the app performs the download operation asynchronously in a background task.
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,)

Answer:

QUESTION 90
Drag and Drop Question
You are developing a Windows Store app that must use a background task to retrieve local weather conditions from the Internet.
You need to ensure that the app can update the user interface while it is in a running or suspended state.
How should you complete the code segment? (To answer, drag the appropriate term to the correct location or locations in the answer area. Each term 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:

Explanation:
http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh977055.aspx


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