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Microsoft 70-490 Exam Syllabus Topics:

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

Question 1

HOTSPOT
You develop a Windows Store app by using JavaScript. The current environment is shown in the following diagram.

A central cloud server must be able to push notifications to all mobile platforms including, but not limited to, Windows 8.x devices and Windows 8 Phones.
You need to configure the environment.
Select the correct answer from each list based on the information presented in the diagram. Each correct selection is worth one point.

Question 2

You are developing a Windows Store enterprise app.
The app must retrieve data from other apps asynchronously across domains by using the XMLHttpRequest object.
You need to retrieve the data.
What should you use?

A. WinJS.xhr
B. HTTPClient
C. HttpWebRequest
D. GetResponseStream()

Question 3

You need to modify the app so that the user can play videos by tapping the screen. What should you do?

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

Question 4

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

Question 5

HOTSPOT
The following image depicts three apps. App1 and App3 have been launched by App2.

Select the correct answer from each list based on the information presented in the image. Each correct selection is worth one point.

Solutions: