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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.
The app will access several web resources that use an OAuth 2.0 authentication provider.
You need to recommend in which class to store user credentials so that users do not have
to reenter their credentials when they access the web resources.
Which class should you recommend?

A) Windows.Security.Credentials.WebAccount
B) System.Net.NetworkCredential
C) System.Net.AuthenticationManager
D) Windows.Security.Credentials.PasswordVault

2. 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.
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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.

3. DRAG DROP
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.)

4. DRAG DROP
You add a MediaElement named VideoTour and a button named playToButton to the
properties details page.
You need to ensure that video tours can be played to other devices.
You have the following code: (Line numbers are included for reference only.)

Which elements should you include in Target 1, Target 2 and Target 3 to complete the code? (To answer, drag the appropriate elements to the correct targets in the answer area. 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.)

5. You need to enable the capabilities that allow communication according to the technical requirements.
Which capabilities should you enable? (Each correct answer presents part of the solution. Choose all that apply.)

A) SSL Certificates
B) Shared User Certificates
C) Default Windows Credentials
D) Internet (Client)

Solutions: