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Microsoft 070-490 Exam Syllabus Topics:

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

1. You are developing a line-of-business Windows Store app that will interact with a magnetic stripe reader. Your company distributes the magnetic stripe reader to an end user.
You need to activate the magnetic stripe reader.
Which method should you use?

A) CheckHealthAsync
B) ClaimScannerAsync
C) GetDeviceSelector
D) GetDefaultAsync

2. HOTSPOT
You are developing a Windows Store app by using JavaScript.
You plan to add an animation to the navigation button. The animation must do the following:
- Show motion when tapped.
- Move to the next app screen after completing the animation sequence.
You need to add the animation to the button.
How should you complete the relevant code? (To answer, select the correct code segment in each drop-down list in the answer area.)

3. You need to implement the code to meet the search requirements. Which code segment should you insert at line NP11?

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

4. HOTSPOT
You are developing a Windows Store app that will include a <div> element.
You are applying animation to the app. The animation must provide visual feedback that
the <div> element has been tapped or clicked.
You need to implement the animation by using a JavaScript library.
How should you complete the relevant code? (To answer, select the correct code segment
from each drop-down list in the answer area.)

5. You develop a Windows Store app that allows users to modify images by using filters and image-processing algorithms.
The app must meet the following requirements:
- Use a web worker to initiate the image-processing algorithms on a separate thread. - Clean up the web worker after processing the algorithms.
You need to ensure that the web worker releases memory after processing the algorithms. What should you do?

A) From the calling page, call the closet) command.
B) From the web worker, call the close() command.
C) From the calling page, call the postMessage() command with the terminate parameter.
D) From the web worker, call the GCollect method.

Solutions: