Microsoft Advanced Windows Store App Dev using HTML5 and JavaScript : 70-482

  • Exam Code: 70-482
  • Exam Name: Advanced Windows Store App Dev using HTML5 and JavaScript
  • Updated: Oct 10, 2026
  • Q & A: 175 Questions and Answers

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Microsoft 70-482 Exam Syllabus Topics:
SectionObjectives
Topic 1: Prepare apps for deployment and store submission- App packaging and signing
- Windows Store certification requirements
Topic 2: Access and manipulate data- Working with local and remote data
- Using REST services and JSON
Topic 3: Develop application logic using WinJS- WinJS controls and templates
- Data binding and promises
Topic 4: Design Windows Store apps- User experience design principles for Windows Store apps
- App architecture and lifecycle
Topic 5: Debugging and testing Windows Store apps- Performance profiling and optimization
- Debugging tools and techniques
Topic 6: Develop UI using HTML5, CSS3, and JavaScript- HTML5 semantic structure and controls
- JavaScript integration with UI
- Layout design and styling with CSS3
Microsoft Advanced Windows Store App Dev using HTML5 and JavaScript Sample Questions:
Question #1

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 postMessage() command with the close parameter.
  • B. From the calling page, call the postMessage() command with the terminate parameter.
  • C. From the web worker, call the close() command.
  • D. From the calling page, call the postMessage() command with the clean parameter.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Question #2

HOTSPOT
You are developing a Windows Store style app by using JavaScript. The app will send and receive encoded information and will display the encoded information to the user in a decrypted and recognizable state.
You need to appropriately decrypt the encoded information.
How should you complete the relevant code? (To answer, select the correct code segment from each drop-down list in the answer area.)

Reveal Solution  Discussion  0

Correct Answer:

Question #3

You are developing a Windows Store app by using JavaScript. The app persists a list of
restaurants in the app's settings. The restaurant list is identified by a key of city. The app must allow users to remove their restaurant lists from the app's settings. The following function call removes the city setting:
deleteListSetting("city") ;
You need to remove only city from the settings storage without disrupting other settings.
Which code segment should you use?

  • A. Option C
  • B. Option D
  • C. Option B
  • D. Option A
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #4

You need to debug the error that is displayed in the warning message.
What should you do?

  • A. In the package.appxmanifest file, set the Webcam property in the Capabilities list.
  • B. Insert the following code segment at line VD18:
    var dialog = new Windows.Media.Capture.CameraCaptureUI( );
    dialog.photoSettings.enableCamera( );
  • C. In the package.appxmanifest file, add Camera Settings to the available declarations.
  • D. Insert the following code segment at line VD18:
    var dialog = new Windows.Media.Capture.CameraCaptureUT( );
    dialog.videoSet tings.enableCamera ( );
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #5

You need to retrieve the background task collection for the iteration loop. Which code segment should you insert at line BG14?

  • A. Option C
  • B. Option D
  • C. Option B
  • D. Option A
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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