Microsoft Recertification for MCSD: Windows Store Apps using C# : 70-491 Exam Questions

Exam Code: 70-491
Exam Name: Recertification for MCSD: Windows Store Apps using C#
Updated: Sep 10, 2026
Q&As: 91 Questions and Answers

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Microsoft 70-491 Exam Syllabus Topics:

Section	Weight	Objectives
Implement Security, Devices, and Windows Platform Features	25%	- Integrate platform capabilities 1. Access device capabilities and sensors 2. Implement authentication and authorization 3. Use contracts, tiles, notifications, and background tasks
Design and Implement Application Architecture	25%	- Design application structure 1. Manage application lifecycle and state 2. Implement dependency management 3. Implement MVVM and architectural patterns
Implement Data Access and Connectivity	25%	- Work with local and remote data 1. Store and retrieve local application data 2. Implement synchronization and caching 3. Consume REST and web services
Develop User Interface and User Experience	25%	- Create adaptive user interfaces 1. Support different resolutions and orientations 2. Implement animations and visual states 3. Implement XAML controls and layouts

Microsoft Recertification for MCSD: Windows Store Apps using C# Sample Questions:

Question #1

DRAG DROP
You are developing a Windows Store app that caches user application data in the local data store.
The app must create a setting named UserName within a container named UserSettings. The app must store the user name in the local store.
You need to meet the requirements.
How should you complete the code segment? (To answer, drag the appropriate options to the correct location or locations. Each option 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.)

Reveal Solution Discussion 0

Correct Answer:

Question #2

You are developing a Windows Store app.
The app will store user names and passwords by using Windows Azure.
You need to recommend a method to store the passwords. The solution must minimize the likelihood that the passwords will be compromised.
Which algorithm should you recommend using?

A. 3DES
B. DES
C. SHA512
D. AES

Reveal Solution Discussion 0

Correct Answer: C 🗳️

Explanation: Only visible for VCEPrep members. You can sign-up / login (it's free).

Question #3

DRAG DROP
You are developing a Windows Store app.
The app has the following requirements:
- Open the Search charm.
- Provide query suggestions by using the GetSuggestions() method-
You need to ensure that the app meets the requirements. You have the following code:

Which code snippets should you insert in Target 1 and Target 2 to complete the code? (To answer, drag the appropriate code snippets to the correct targets in the answer area. Each code snippet 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.)

Reveal Solution Discussion 0

Correct Answer:

Question #4

DRAG DROP
You need to allow users to capture video instead of photos. You have the following code:

Which code snippets should you include in Target 1 and Target 2 to complete the code? (To answer, drag the appropriate code snippets to the correct targets in the answer area. Each code snippet 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.)

Reveal Solution Discussion 0

Correct Answer:

Question #5

You place a breakpoint at line MP31 in the app.
When you debug the app, the debugger continuously catches a
System.UnauthorizedAccess exception.
You need to resolve the exception.
What should you do?

A. Wrap lines CE43 through CE46 in a try-catch statement.
B. Move line CE09 to CE16.
C. At line MP10, change the code segment to the following line of code. read if(cameraUI != null)
D. At line PA25, insert the following line of code. <Capability Name="picturesLibrary"/>

Reveal Solution Discussion 0

Correct Answer: D 🗳️

Explanation: Only visible for VCEPrep members. You can sign-up / login (it's free).