Microsoft 70-355 : Universal Windows Platform - App Data - Services - and Coding Patters

70-355 pass collection

Exam Code: 70-355

Exam Name: Universal Windows Platform - App Data - Services - and Coding Patters

Updated: Sep 22, 2026

Q & A: 0 Questions and Answers

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About Microsoft 70-355 Exam

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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
Related Certifications:Microsoft Certified: Universal Windows Platform Developer
Real Exam Qty:40-60
Certificate Validity Period:Retired (no longer available)
Exam Price:USD 165 (varies by region)
Exam Format:Case studies, Scenario-based questions, Multiple choice
Exam Duration:150 minutes
Available Languages:English
Passing Score:700 (out of 1000)
Recommended Training:Microsoft Learn - UWP development resources
Exam Registration:Microsoft Certification Dashboard
Exam Way:Onsite or online proctored exam (availability depends on testing provider and region)
Pre Condition:No formal prerequisites; recommended familiarity with C#, XAML, and UWP development concepts.
Official Syllabus URL:https://learn.microsoft.com/

Microsoft 70-355 Exam Syllabus Topics:

SectionObjectives
Topic 1: Manage Application Data- File handling and serialization
  • 1. JSON serialization and deserialization
    • 2. Working with files and folders in UWP
      - Local and roaming data storage strategies
      • 1. ApplicationData APIs and usage patterns
        • 2. Data persistence and lifecycle management
          Topic 2: Implement Services and Background Processing- Background tasks
          • 1. Task registration and execution
            • 2. Trigger types and constraints
              - App services
              • 1. App-to-app communication
                • 2. Service contracts and messaging patterns
                  Topic 3: Implement Coding Patterns and Architecture- Dependency injection and separation of concerns
                  • 1. Loose coupling strategies
                    • 2. Service abstraction layers
                      - MVVM pattern
                      • 1. Command and notification patterns
                        • 2. ViewModel design and data binding
                          Topic 4: Integrate External Data and Services- RESTful services consumption
                          • 1. Parsing JSON and handling responses
                            • 2. HTTP client usage and request handling
                              - Cloud and Azure integration concepts
                              • 1. Authentication and API access
                                • 2. Data synchronization strategies

                                  70-355 Exam Questions and Study Options

                                  Whichever matches your habits — all three are built around the same Microsoft Universal Windows Platform - App Data - Services - and Coding Patters content. The PDF version suits paper readers: print it out, mark it up, and share pages with a study partner. The PC test engine suits computer-based learners: it simulates the real exam scene, lets you set a time limit like the live 70-355 exam, flags your mistakes, and reminds you to re-practice them daily. The online APP includes every software function and runs on Windows, Mac, Android, and iOS. Choose the one you will actually use every day.

                                  The 70-355 exam contains 40-60 questions to be completed in 150 minutes minutes. That pace is exactly what the PC test engine's timed mode trains — set the same limit in practice, and the real clock stops being a surprise.

                                  Microsoft recommends these training options for candidates:

                                  Official courses build understanding; a daily practice routine with expert-verified answers builds exam-day readiness. The strongest preparation uses both.

                                  To pass the 70-355 exam you need 700 (out of 1000), and registration costs USD 165 (varies by region). Set against that fee, thorough preparation is the smaller expense by far — and the one most likely to protect the larger one.

                                  The official outline divides the 70-355 exam into weighted domains, including:

                                  • Integrate External Data and Services ()
                                  • Implement Services and Background Processing ()
                                  • Manage Application Data ()

                                  The Microsoft Universal Windows Platform - App Data - Services - and Coding Patters practice questions at PassCollection follow these same objectives, whichever of the three study formats you use.

                                  Yes. We understand that many candidates prefer not to advertise how they prepare. PassCollection runs a strict information protection system: your personal details and your 70-355 exam purchase are kept secret and safe, and never disclosed to any third party. You can order the Microsoft Universal Windows Platform - App Data - Services - and Coding Patters materials with complete peace of mind.

                                  No formal prerequisites; recommended familiarity with C#, XAML, and UWP development concepts.

                                  The 70-355 exam is the official assessment behind the Microsoft Universal Windows Platform - App Data - Services - and Coding Patters certification from Microsoft. Many IT professionals pursue it as a step toward leadership roles, because the credential verifies practical command of the published objectives. Solid preparation — not luck — is what carries candidates through it.

                                  You can register for the 70-355 exam through these official channels:

                                  Book your seat only when your timed practice scores say you are ready — the registration fee is better paid once than twice.

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