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

1. HOTSPOT
You are developing a Windows Store app.
The app receives badge notifications from Windows Push Notification Services (WNS).
You configure the app to establish a communication channel with WNS. You use a variable named pushChannel to store the notification channel object used for communication. You add the following line of code to the app:

Which code snippets should you insert in Target 1, Target 2 and Target 3 to complete the code? (To answer, select the correct code snippet from each drop-down list in the answer area.)

2. You plan to create a custom panel that displays a pie chart. Each value of the pie chart will have a control.
You need to register a custom dependency property to the panel.
Which code segment should you use?

A) Option C
B) Option D
C) Option B
D) Option A

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

4. 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.)

5. You need to authenticate to a social networking site.
Which code segments should you insert at line SR40? (Each correct answer presents part of the solution. Choose all that apply.)

A) source.RequestUri.SecureString,
B) WebAuthenticationOptions.SilentMode,
C) WebAuthenticationOptions.None,
D) source.RequestUri,

Solutions: