Microsoft 070-521 Exam Information and Actual Questions

  • Exam Code/Number: 070-521
  • Exam Name/Title: Upgrade: Transition Your MCPD Windows Developer 3.5, or Enterprise Application Developer 3.5, Skills to MCPD Windows Developer 4
  • Certification Provider: Microsoft
  • Corresponding Certification: MCPD
  • Exam Questions: 115
  • Updated On: Jul 24, 2026

070-521
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Microsoft
070-521 Exam
Upgrade: Transition Your MCPD Windows Developer 3.5, or Enterprise Application Developer 3.5, Skills to MCPD Windows Developer 4

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Microsoft 070-521 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Upgrade: Transition Your MCPD Windows Developer 3.5, or Enterprise Application Developer 3.5 Skills to MCPD Windows Developer 4
Exam Number:70-521
Exam Duration:120-150
Available Languages:English
Exam Price:USD 165 (varies by region)
Related Certifications:MCPD Windows Developer 3.5
MCPD Enterprise Application Developer 3.5
MCPD Windows Developer 4
Passing Score:700 (on 1000 scale)
Exam Format:Multiple choice, Case studies, Scenario-based questions
Real Exam Qty:40-60
Certificate Validity Period:Retired (no longer active certification exam)
Sample Questions:Microsoft 070-521 Sample Questions
Exam Way:Computer-based exam at authorized testing centers (Prometric/Vue historically)
Pre Condition:MCPD Windows Developer 3.5 or MCPD Enterprise Application Developer 3.5 certification recommended/required (historical Microsoft certification path)

Microsoft 070-521 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security and Application Architecture- Application security
  • 1. Code access security fundamentals
    • 2. Authentication and authorization concepts
      - Application design principles
      • 1. Layered architecture
        • 2. Separation of concerns
          Topic 2: Application Deployment and Configuration- Application configuration
          • 1. .config files and settings management
            • 2. Versioning and updates
              - Deployment strategies
              • 1. MSI-based deployment concepts
                • 2. ClickOnce deployment
                  Topic 3: Data Access and Integration- ADO.NET and data connectivity
                  • 1. Connected and disconnected data models
                    • 2. DataSets and DataReaders
                      - Language Integrated Query (LINQ)
                      • 1. LINQ to DataSet and LINQ to SQL concepts
                        • 2. LINQ to Objects
                          Topic 4: Windows Client Application Development- Windows Forms development in .NET Framework 4
                          • 1. UI controls and events
                            • 2. Data binding in Windows Forms
                              • 3. Custom controls and components
                                - Windows Presentation Foundation (WPF)
                                • 1. Data binding and MVVM patterns
                                  • 2. Resources, styles, and templates
                                    • 3. XAML fundamentals and layout system


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