Exam 70-491 – Recertification for MCSD-Windows Store Apps using C#
Skills measured
This exam measures your ability to accomplish the technical tasks listed below.
Please note that the questions may test on, but will not be limited to, the topics described in the bulleted text.
Design Windows Store apps
- Design the UI layout and structure
- Evaluate the conceptual design; decide how the UI will be composed; design for the inheritance and re-use of visual elements (e.g., styles, resources); design for accessibility; decide when custom controls are needed; use the Hub App template
Develop Windows Store apps
- Implement search
- Provide search suggestions using the SearchPane and SearchBox control class; search and launch other apps; provide and constrain search within an app, including inside and outside of search charm; provide search result previews; implement activation from within search; configure search contracts
- Implement Share in an app
- Use the DataTransferManager class to share data with other apps; accept sharing requests by implementing activation from within Share; limit the scope of sharing using the DataPackage object; implement in-app Share outside of Share charm; use web links and application links
- Manage app settings and preferences
- Choose which app features are accessed in AppSettings; add entry points for AppSettings in the Settings window; create settings flyouts; store and retrieve settings from the roaming app data store
- Integrate media features
- Support DDS images; implement video playback; implement XVP and DXVA; implement Text to Speech (TTS)
Create the user interface
- Create layout-aware apps to handle windowing modes
- Use CSS3 media queries to adapt to different devices; respond to changes in orientation; adapt to new windowing modes by using the ViewManagement namespace; manage setting for an apps view
- Design and implement the app/nav bar
- Determine what to put on the app/nav bar based on app requirements; style and position app/nav bar items; design the placement of controls on the app/nav bar; handle app/nav bar events; design the placement of controls on the app/nav bar
- Design and implement data presentation
- Choose and implement data controls and properties to meet app requirements (e.g., ListView, GridView, FlipView, DatePicker, TimePicker, Hyperlink, PlaceholderText, menu flyouts, and CommandBar); create data templates to meet app requirements
Program user interaction
- Notify users by using toast
- Enable an app for toast notifications; populate toast notifications with images and text by using the ToastUpdateManager; play sounds with toast notifications; respond to toast events; control toast duration; configure and use Azure Mobile Services for push notifications
Manage security and data
- Choose an appropriate data access strategy
- Choose the appropriate data access strategy (file based; web service; remote storage, including Microsoft Azure storage and Azure Mobile Services) based on requirements
- Manage Windows Authentication and Authorization
- Retrieve a user’s roles or claims; store and retrieve credentials by using the PasswordVault class; implement the CredentialPicker class; verify credential existence by using credential locker; store account credentials in app settings
- Manage Web Authentication
- Use the Windows.Security.Authentication.Web namespace; set up OAuth2 for authentication; CredentialPicker; set up single sign-on (SSO); implement credential roaming; implement the WebAuthenticationBroker class; support proxy authentication for enterprises
Discover and interact with devices
- Capture media with the camera and microphone
- Use CameraCaptureUI to take pictures or video, and configure camera settings; use MediaCapture to capture pictures, video, and 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
- Implement device access
- USB; Bluetooth; Human Interface Device (HID); 3D printer support; Point of Service (PoS) devices
Program user interaction
- Implement Play To by using contracts and charms
- Register an app for Play To; use PlayToManager stream media assets; register an app as a PlayToReceiver; programmatically implement PlayTo 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
Enhance the user interface
- 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
Manage data and security
- Design and implement data caching
- Choose which types of items (user data, settings, application data) in your app should be persisted to the cache based on requirements; choose when items are cached; choose where items are cached (Microsoft Azure, Azure Mobile Services, remote storage); select a caching mechanism; store data by using indexDB, LocalStorage, and SessionStorage
- Save and retrieve files
- Handle file streams; save and retrieve files by using the StorageFile and StorageFolder classes; set file extensions and associations; save and retrieve files by using file pickers and the folder picker; 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
- 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
- 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
- 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)