Instant Download 70-490 Exam Dumps : Recertification for MCSD: Windows Store Apps using HTML5
Updated: Sep 05, 2026
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Microsoft 70-490 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Debug, Test, and Deploy Apps | 10% | - Diagnose and fix runtime errors - Prepare for Windows Store submission - Optimize performance and responsiveness |
| Topic 2: Manage App Lifecycle and State | 25% | - Manage session data and settings - Save and restore application state - Handle activation, suspension, and termination |
| Topic 3: Design and Develop Windows Store Apps | 30% | - Apply styling with CSS3 - Plan application architecture and design - Implement navigation and user interface |
| Topic 4: Implement Data Access and Storage | 20% | - Consume REST services and data sources - Use local, roaming, and temporary storage - Work with files and folders |
| Topic 5: Implement Security and Authentication | 15% | - Manage application permissions and capabilities - Implement authentication and authorization - Secure data and communications |
Microsoft Recertification for MCSD: Windows Store Apps using HTML5 Sample Questions:
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 terminate parameter.
- B. From the calling page, call the closet) command.
- C. From the web worker, call the GCollect method.
- D. From the web worker, call the close() command.
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.
You are developing a Windows Store photography app by using JavaScript. The app includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that the app captures all pictures as landscape-oriented photos at the maximum resolution.
Which code segment should you insert at line 03?
- A. Option A
- B. Option C
- C. Option D
- D. Option B
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. Encode data to and decode data from a Base64 string.
- B. Encrypt and decrypt data by using an asymmetric algorithm.
- C. Encrypt data by using an asymmetric algorithm. Decrypt data by using a symmetric algorithm.
- D. Encrypt and decrypt data by using a symmetric algorithm.
HOTSPOT
You need to ensure that the Printer Survey task populates the map pinpoints according to the requirements.
What code should you insert at line PM31? (To answer, select the correct code segment from each dropdown list in the answer area.)
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