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Microsoft 070-491 Exam Syllabus Topics:

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

1. 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) Internet (Client & Server)
B) Private Networks (Client & Server)
C) Enterprise Authentication
D) Pictures Library
E) Webcam
F) Proximity

2. DRAG DROP
You are developing a Windows Store app.
The app consumes data from a business layer.
You need to develop a unit test.
The test method must ensure that the collection of person objects returned by the business
layer meets the following requirements:
- Always contains elements
- Orders elements consistently between calls
You have the following code:

Which code snippets should you include in Target 1, Target 2, Target 3 and Target 4 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.)

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

4. 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) Move line CE09 to CE16.
B) At line MP10, change the code segment to the following line of code. read if(cameraUI != null)
C) At line PA25, insert the following line of code. <Capability Name="picturesLibrary"/>
D) Wrap lines CE43 through CE46 in a try-catch statement.

5. DRAG DROP
You are developing a Windows Store app.
You need to implement claims according to their appropriate use.
Which claim is appropriate for each purpose? (To answer, drag the appropriate claims to the correct locations in the answer area. Each claim 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.)

Solutions: