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

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

2. HOTSPOT
You are developing a Windows Store app.
You define an app bar named BottomAppBar.
You need to ensure that you can open the app bar programmatically.
You have the following code:

Which code snippets should you insert in Target 1 and Target 2 to complete the code? (To answer, select the correct code snippet from each drop-down list in the answer area.)

3. DRAG DROP
You are developing an app that converts text to speech.
You need to ensure that the app can read text from open documents.
You have the following code for the reading function of the app. (Line numbers are included
for reference only.)

Which code segments should you insert at lines 03, 05, and 08? (To answer, drag the appropriate code segments to the correct locations. Each code segment 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. 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?

A) Handle the RecordLimitationExceeded event.
B) Handle the AudioTransferRequested event.
C) Call the StopRecordAsyncO method.
D) Assign a handler lo the DefaultAudioCaptureDeviceChanged event.

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: