Microsoft 70-490 : Recertification for MCSD: Windows Store Apps using HTML5

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Microsoft 70-490 Exam Syllabus Topics:

Microsoft Recertification for MCSD: Windows Store Apps using HTML5 Sample Questions:

Question #1
You are developing a Windows Store app that will allow users to take photos by using the built-in device camera. The app will immediately open the photo for editing.
You need to programmatically specify the location from which to open the most recent photo taken by the app.
What is the best option to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.

A. KnownFolders.pictureslibrary
B. SkyDrive.Pictures
C. KnownFolders.savedPictures
D. KnownFolders.cameraRoll

Question #2
In the following code segment, three functions return WinJS.Promise objects.

You need to chain the promise operations to optimize error handling. Which code segment should you use?

A. Option D
B. Option B
C. Option C
D. Option A

Question #3
You are developing two Windows Store apps by using JavaScript. A Source app will store sensitive customer information. A Target app will retrieve the stored information for validation and further processing.
The Source app must secure data by using a private-public key pair. Only the Target app must be able to consume data that has been secured by the Source app.
You need to ensure that the security of the data is not compromised.
What should you do?

A. Encrypt and decrypt data by using a symmetric algorithm.
B. Encrypt data by using an asymmetric algorithm. Decrypt data by using a symmetric algorithm.
C. Encrypt and decrypt data by using an asymmetric algorithm.
D. Encode data to and decode data from a Base64 string.

Question #4
You need to ensure that the PrintNearMeCall function meets the technical requirements. Which code segment should you insert at line PS24?

A. Option D
B. Option B
C. Option C
D. Option A

Question #5
DRAG DROP
You are developing a Windows Store app that streams photos to and from any Windows-compliant device on the same network.
You need to configure the Play To receiver.
How should you complete the relevant code? To answer, drag the appropriate code segments to the correct targets. 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.

Solutions: