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

1. You need to implement the requirements for the playback of media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A) Add the following line of code at line MC06.
ptMgr.DefauitSourceSelection = false;
B) Add the following line of code at line MC10.
ptMgr.PlayRequested += SourceRequestHandler;
C) Add the following line of code at line MC02.
private void ShowPlayTo()
{
Windows.Media.PlayTo.PlayToManager.ShowPlayToUI();
}
D) Add the following line of code at line MC05.
ptMgr.SourceRequested += SourceRequestHandler;

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

3. You are developing a Windows Store app.
The app will access a web service.
You need to declare the web service Uniform Resource Identifier (URI).
Which file should you modify?

A) AppConfig
B) xap
C) AppxManifest
D) WebConfig
E) Wsp

4. DRAG DROP
You are developing a Windows Store app that uses a light sensor to detect and respond to light changes. An object named lightSensor is an instance of the sensor service.
The light sensor must detect changes once per second. If the sensor is unable to record as fast as once per second, then it must use the fastest interval possible.
You need to ensure that the app meets the requirements. You have the following code:

Which code snippets should you include 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.)

5. You plan to develop a Windows Store app to create pictures.
Users of the app will be able to save the pictures that they create and to share the pictures with friends by using a web link.
You need to ensure that the friends can makes comments on the shared pictures.
Which storage technology should you use? (More than one answer choice may achieve the goal. Select the BEST answer.)

A) Roaming storage
B) Microsoft Azure Mobile Services
C) One Drive
D) Microsoft Azure blob storage

Solutions: