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Updated: Sep 15, 2026

No. of Questions: 115 Questions & Answers with Testing Engine

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Microsoft 70-521-VB Exam Overview:

Certification Vendor:Microsoft
Exam Name:UPG: Transition MCPD .NET Framework 3.5 Developer Skills to .NET Framework 4 Windows Applications Developer (VB)
Exam Number:70-521-VB
Available Languages:English, Visual Basic (VB) version
Exam Format:Scenario-based questions, Upgrade exam, Microsoft certification exam, Multiple-choice
Related Certifications:MCPD: Windows Applications Developer 4
MCPD: Windows Developer 3.5
Certificate Validity Period:Historically associated with the Microsoft Certified Professional Developer (MCPD) program; certification validity policy depended on Microsoft's certification lifecycle.
Sample Questions:Microsoft 70-521-VB Sample Questions
Exam Way:Microsoft authorized testing centers (historically) and, where available during the exam lifecycle, Microsoft-authorized online proctoring.
Pre Condition:Designed as an upgrade exam for developers who already held MCPD .NET Framework 3.5 Windows Developer skills/certification and wanted to transition to the .NET Framework 4 Windows Applications Developer credential.

Microsoft 70-521-VB Exam Syllabus Topics:

SectionObjectives
Windows Application Development with .NET Framework 4- Application Architecture and Design
  • 1. Apply object-oriented design principles
  • 2. Design Windows desktop application architecture
- User Interface Development
  • 1. Handle events, controls, and user interaction
  • 2. Implement Windows Forms user interfaces
- Application Deployment and Configuration
  • 1. Manage application configuration and updates
  • 2. Deploy Windows applications
- Data Access and Management
  • 1. Implement data binding and data validation
  • 2. Access and manipulate data using ADO.NET
- Performance and Maintenance
  • 1. Optimize application performance
  • 2. Debug and maintain Windows applications
- Security and Reliability
  • 1. Handle exceptions and improve application reliability
  • 2. Implement authentication and authorization

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Online Test Engine can supports Windows / Mac / Android / iOS, etc., because it is the software based on WEB browser. You can use it on any electronic device and practice with self-paced.
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Self Test Engine is suitable for windows operating system, running on the Java environment, and can install on multiple computers.
PDF Version: can be read under the Adobe reader, or many other free readers, including OpenOffice, Foxit Reader and Google Docs.

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