Microsoft 070-491 : Recertification for MCSD: Windows Store Apps using C#

  • Exam Code: 070-491
  • Exam Name: Recertification for MCSD: Windows Store Apps using C#
  • Updated: Aug 19, 2026     Q & A: 91 Questions and Answers

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Microsoft 070-491 Exam Syllabus Topics:

SectionObjectives
Topic 1: Debugging, Performance, and Troubleshooting- Debugging tools and techniques
- Exception handling and diagnostics
- Performance optimization strategies
Topic 2: Networking and Services- Consuming RESTful services
- Handling HTTP requests and responses
- Background transfers and connectivity scenarios
Topic 3: Application Lifecycle Management- State management and persistence during lifecycle events
- App activation, suspension, and termination handling
Topic 4: Data Access and Storage- Serialization and data persistence techniques
- File system access and permissions
- Local storage and roaming data
Topic 5: App Deployment and Windows Store- Windows Store certification requirements
- Packaging and deployment process
Topic 6: User Interface Design with XAML- Data binding and MVVM pattern implementation
- Control templates and styling
- Layout controls and adaptive UI design

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

1. You need to implement the requirements for the playback of media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A) Add the following line of code at line MC10.
ptMgr.PlayRequested += SourceRequestHandler;
B) Add the following line of code at line MC06.
ptMgr.DefauitSourceSelection = false;
C) Add the following line of code at line MC05.
ptMgr.SourceRequested += SourceRequestHandler;
D) Add the following line of code at line MC02.
private void ShowPlayTo()
{
Windows.Media.PlayTo.PlayToManager.ShowPlayToUI();
}


2. You are designing a Windows Store app that creates large amounts of temporary binary data each time it is run.
You need to ensure that data is persisted while the app is running but deleted when the app is closed.
Which app data storage mechanism should you use? (Each correct answer presents a complete solution. Choose all that apply.)

A) the app settings of the local app data store
B) a roaming app data store
C) a temporary app data store
D) the app files of the local app data store


3. DRAG DROP
You are developing a Windows Store app.
The following code segment defines an event procedure. (Line numbers are included for reference only.)

You need to define a custom help setting in the event procedure.
Which three code segments should you insert in sequence at line 03? (To answer, move the appropriate code segments to the answer area and arrange them in the correct order.)


4. You are developing a Windows Store multi-player game.
You need to ensure that the game can authenticate users by using the credentials of a third-party social networking site.
Which class should you use?

A) PassportAuthenticationModule
B) WindowsAuthenticationModule
C) WebAuthenticationBroker
D) FormsAuthentication


5. DRAG DROP
You are developing a Windows Store app that uses the Windows Push Notification Service (WNS) to provide real-time updates to users. The app uses an HTTP request to authenticate a cloud service to interact with WNS.
The Package Security Identifier (SID) prefix is app://.
Parameter values must be URL encoded.
You need to ensure that the authentication request provides the required parameters.
Which parameters should you use? (To answer, drag the appropriate parameters to the correct location or locations. Each parameter 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.)


Solutions:

Question # 1
Answer: B,C
Question # 2
Answer: A,C,D
Question # 3
Answer: Only visible for members
Question # 4
Answer: C
Question # 5
Answer: Only visible for members

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