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Updated: Sep 01, 2026

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70-355 Online Engine

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70-355 Practice Q&A's

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Microsoft 70-355 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Universal Windows Platform - App Data - Services - and Coding Patterns
Exam Number:70-355
Available Languages:English
Passing Score:700 / 1000
Certificate Validity Period:Retired since December 31, 2021
Exam Format:Case studies, Performance-based, Multiple-choice
Related Certifications:MCSA: Universal Windows Platform
Real Exam Qty:40-60
Exam Duration:120-150
Exam Price:$165 USD
Recommended Training:Microsoft Official Course 20694
Microsoft Virtual Academy / Microsoft Learn
Exam Registration:Pearson VUE (historical)
Exam Way:Proctored online or at authorized Pearson VUE test centers
Pre Condition:Recommended: 1-2 years experience in C#, XAML, and UWP development; no formal prerequisites
Official Syllabus URL:https://www.microsoft.com/learning/exam-70-355.aspx (no longer active)

Microsoft 70-355 Exam Syllabus Topics:

SectionWeightObjectives
Applying Coding Patterns35%- Design Patterns and Architecture
  • 1. Separation of concerns
    • 2. MVVM pattern implementation
      • 3. Dependency injection and loose coupling
        - Performance and Maintainability
        • 1. Asynchronous programming patterns
          • 2. Error handling and exception management
            • 3. Testable and maintainable code structure
              Implementing App Data30%- File and Data Management
              • 1. Data caching and synchronization
                • 2. Data serialization/deserialization
                  • 3. Reading/writing files
                    - Local and Roaming Data Storage
                    • 1. ApplicationData class usage
                      • 2. LocalFolder, RoamingFolder, TemporaryFolder
                        • 3. Application settings and containers
                          Integrating Services35%- Cloud and Web Services
                          • 1. Azure Mobile Services integration
                            • 2. Authentication and authorization
                              • 3. REST APIs and HTTP communication
                                - Background Tasks and App Services
                                • 1. Push notifications and background updates
                                  • 2. Implementing app-to-app services
                                    • 3. Creating and registering background tasks

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                                      Frequently Asked Questions

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                                      Test Engine: 70-355 study test engine can be downloaded and run on your own devices. Practice the test on the interactive & simulated environment.
                                      PDF (duplicate of the test engine): the contents are the same as the test engine, support printing.

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                                      The free update offer is valid for one year after you've purchased the 70-355 products. You will be informed if there is any update

                                      What's the different of the three versions?

                                      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.
                                      Online Test Engine supports offline practice, while the precondition is that you should run it with the internet at the first time.
                                      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.

                                      How does your Testing Engine works?

                                      Once download and installed on your PC, you can practice 70-355 test questions, review your questions & answers using two different options 'practice exam' and 'virtual exam'.
                                      Virtual Exam - test yourself with exam questions with a time limit.
                                      Practice Exam - review exam questions one by one, see correct answers.

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                                      Sure. We have the money back guarantee in case of failure by our products. The process of money back is very simple: you just need to show us your failure score report within 60 days from the date of purchase of the exam. We will then verify the authenticity of documents submitted and arrange the refund after receiving the email and confirmation process. The money will be back to your payment account within 7 days.

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