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Visual Studio

  • Published:
    October 18, 2012
  • Languages:
    English, Chinese (Simplified), French, German, Japanese, Portuguese (Brazil)
  • Audiences:
    Partners, developers
  • Technology:
    Visual Studio 2012
  • Credit toward certification:

Advanced Windows Store App Development Using C#

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Skills measured

This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area on the exam. The higher the percentage, the more questions you are likely to see on that content area on the exam. View video tutorials about the variety of question types on Microsoft exams.

Please note that the questions may test on, but will not be limited to, the topics described in the bulleted text.

Do you have feedback about the relevance of the skills measured on this exam? Please send Microsoft your comments. All feedback will be reviewed and incorporated as appropriate while still maintaining the validity and reliability of the certification process. Note that Microsoft will not respond directly to your feedback. We appreciate your input in ensuring the quality of the Microsoft Certification program.

If you have concerns about specific questions on this exam, please submit an exam challenge.

As of December 2, 2013, this exam includes content covering Windows 8.1 and Visual Studio 2013.

Develop Windows Store apps (15–20%)
  • Create background tasks
    • Implement the Windows.applicationmodel.background classes; implement the IBackgroundTask interface
  • Consume background tasks
    • Use timing and system triggers; keep communication channels open; request lock screen access; use the BackgroundTransfer class to finish downloads
  • Create and consume WinMD components
    • Create a WinMD component in C#; consume a WinMD component; handle WinMD reference types; reference a WinMD component

Preparation resources

Discover and interact with devices (15–20%)
  • Capture media with the camera and microphone
    • Use CameraCaptureUI to capture pictures or video; use MediaCapture to capture pictures, video, or audio; configure camera settings; set media formats; handle media capture events; implement advanced photo capabilities, such as sequence mode, thumbnails, and focus mode
  • Get data from sensors
    • Determine the availability of a sensor (Windows.devices.sensors); add sensor requests to the app manifest; handle sensor events; get sensor properties; determine location via GPS; enable geofencing
  • Enumerate and discover device capabilities
    • Discover the capabilities of a device (for example, GPS, accelerometer, near field communication, and camera)
  • Implement device access
    • USB; Bluetooth; Human Interface Device (HID); 3D printer support; Point of Service (PoS) devices

Preparation resources

Program user interaction (15–20%)
  • Implement printing by using contracts and charms
    • Implement the print contract; create a custom print template; construct a print preview; handle print pagination; implement in-app printing; expose printer settings within your app
  • Implement Play To by using contracts and charms
    • Register your app for Play To; use PlayToManager to stream media assets; register your app as a PlayToReceiver; programmatically implement Play To functionality
  • Notify users by using Windows Push Notification Service (WNS)
    • Authenticate with WNS; request, create, and save a notification channel; call and poll the WNS; configure and implement push notifications by using Azure Mobile Services

Preparation resources

Enhance the user interface (15–20%)
  • Design for and implement UI responsiveness
    • Choose an asynchronous strategy for your app; implement the Task Parallel library for multi-processor utilization; convert asynchronous operations to tasks
  • Create animations and transitions
    • Apply animations from the animation library; create and customize animations and transitions, including XAML transitions; implement storyboards and transformations; utilize built-in animations for controls
  • Create custom controls
    • Choose the appropriate base control to create a custom control template; style a control through control templates; design the control template to respond to changes in windowing modes
  • Design Windows Store apps for globalization and localization
    • Implement .resw files to translate text; implement collation and grouping to support different reading directions; implement culture-specific formatting for dates and times

Preparation resources

Manage data and security (15–20%)
  • Design and implement data caching
    • Choose which types of items (user data, settings, app data) in an app should be persisted to the cache according to requirements; choose when items are cached; choose where items are cached (Microsoft Azure, Azure Mobile Services, remote storage); select the caching mechanism; store data by using LocalStorage and SessionStorage
  • Save and retrieve files from the file system
    • Handle file streams; save and retrieve files by using StorageFile and StorageFolder classes; set file extensions and associations; save and retrieve files by using the file picker classes; compress files to save space; access libraries and KnownFolders, for example, pictures, documents, and videos; manage appearance of the file picker; improve searchability by using Windows Index; integrate OneDrive with apps; compare files; manage libraries; secure application data
  • Secure app data
    • Encrypt data by using the Windows.Security.Cryptography namespace; enroll and request certificates; encrypt data by using certificates; revoke file permissions
Prepare for a solution deployment (15–20%)
  • Design and implement monetization features in an app
    • Set up a timed trial; set up a feature-based trial; set up in-app purchases; transition an app from trial to full; implement in-app purchases
  • Design for error handling
    • Design the app so that errors and exceptions never reach the user; application class for global collection; handle device capability errors; handle asynchronous errors
  • Design and implement a test strategy
    • Recommend a functional test plan; implement a coded UI test; recommend a reliability test plan (performance testing, stress testing, scalability testing, duration testing); implement unit testing in an app; simulate in-app purchases
  • Design a diagnostics and monitoring strategy
    • Design profiling, tracing, performance counters, audit trails (events and information), and usage reporting; decide where to log events (local vs. centralized reporting)
  • Evaluate and configure for Windows store deployment
    • Configure app options to submit to store, such as age restrictions, privacy statement, permissions, images, and contact information; create application files, resource files, and application bundles; verify application readiness by using the Windows Application Certification Kit (WACK)

Preparation resources

Preparation options

Instructor-led training
Find a Microsoft Learning Partner near you
Exam prep video

Microsoft Certification PREP Talk: Exam 485

In this episode of Prep tips from certification experts, James Seymour, Certification Planner, and Jerry Nixon, Developer Evangelist, discuss the relevancy of the skills being measured on Exam 485.

Self-paced training
Advanced Windows Store App Development Using C# Refresh

Learn about the new windowing model, advanced contract scenarios, branding, monetization, and animations. Microsoft Technical Evangelist Jerry Nixon and the co-founder of Crank211, Daren May, show you how to implement these new features and APIs and how to differentiate your apps in the marketplace. You also learn about the new Windows Live SDK and how to take advantage of OneDrive from within your apps.

Practice test

Take a Microsoft Official Practice Test for Exam 485

From the community

Exam 70-485 wiki

Exam 70-485 forum

Follow @MSLearning and @visualstudio

Exam Ref 70-485: Advanced Windows Store App Development Using C#

Exam Ref 70-485: Advanced Windows Store App Development Using C#
Published: October 15, 2013

Prepare for Exam 70-485—and help demonstrate your real-world mastery of building Windows Store apps with C#. Designed for experienced developers ready to advance their status, Exam Ref focuses on the critical thinking and decision-making acumen needed for success at the MCSD level.

Buy this book at the Microsoft Press Store

Who should take this exam?

This exam is intended for developers with a minimum of two to five years of experience developing C# and XAML applications, including two or more years designing and developing Windows Store apps.

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We recommend that you review this exam preparation guide in its entirety and familiarize yourself with the resources on this website before you schedule your exam. See the Microsoft Certification exam overview for information about registration, videos of typical exam question formats, and other preparation resources. For information on exam policies and scoring, see the Microsoft Certification exam policies and FAQs.


This preparation guide is subject to change at any time without prior notice and at the sole discretion of Microsoft. Microsoft exams might include adaptive testing technology and simulation items. Microsoft does not identify the format in which exams are presented. Please use this preparation guide to prepare for the exam, regardless of its format. To help you prepare for this exam, Microsoft recommends that you have hands-on experience with the product and that you use the specified training resources. These training resources do not necessarily cover all of the topics listed in the "Skills measured" section.