Microsoft MCSD 070-491

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Microsoft 070-491 Exam Syllabus Topics:

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

1. 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.)

A) the app files of the local app data store
B) a roaming app data store
C) a temporary app data store
D) the app settings of the local app data store

2. You are developing a Windows Store app named GeoLoc. You have the following code:

When you run the app on some devices, you receive the following error message: "An exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll but was not handled in user code."
You need to resolve the issue that causes the exception to occur.
Which file should you modify?

A) Package.appxmanifest
B) Assemblyinfo.es
C) App.xaml
D) Geoloc.csproj

3. You create a mobile service to send push notifications to the app.
You configure the service and the app to work with Windows Push Notification Services
(WNS).
You add the following code to the App.xaml.cs file:

You need to ensure that the app can access the push notification channel.
What should you do first?

A) Set the Uri property of pushChannel in the OnActivated event handler of the app.
B) Add a call to GetChannel in the OnActivated event handler of the app.
C) Add a call to GetChannel in the OnLaunched event handler of the app.
D) Set the Uri property of pushChannel in the OnLaunched event handler of the app.

4. You need to implement the photo viewer control to meet the requirements.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A) Add the themes\generic.xaml file to the project and reference it from the control.
B) Create a custom control.
C) Create a composite control.
D) Create a user control.
E) In the constructor of the class, set the value of the DefaultStyleKey to the type of the control.

5. 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.)

Solutions: