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

1. DRAG DROP
You need to allow users to capture video instead of photos. 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.)

2. You are developing a Windows Store app.
The app will store data in a text file.
You create the following method to store encrypted text in the text file:

The WriteData method writes the contents of an IBuffer object to a StorageFile object.
You need to recommend a solution to encrypt the data. The solution must minimize the use
of system resources and must ensure that the app can decrypt the data.
Which code segment should you recommend adding to line 06?

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

3. You are developing a Windows Store app that will be used to access large files stored online.
The files will be shared between users worldwide.
You need to recommend a solution to ensure that the users can download the files as quickly as possible.
Which storage solution should you recommend?

A) Microsoft Azure Mobile Services
B) OneDrive
C) A roaming folder
D) Microsoft Azure Content Delivery Network (CDN)

4. DRAG DROP
You are developing an augmented reality app.
You need to retrieve the direction to which the device points.
You have the following code:

Which code snippets should you include in Target 1, Target 2 and Target 3 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 implement a custom control to display thumbnail images of video clips. Which code segment should you use?

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

Solutions: