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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:

1. You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application and a Windows Workflow Foundation (WF) component. The WF component contains functionality to incorporate frequently changing rules.
You need to recommend a tier for the deployment of the WF component that will not degrade the performance of the WPF application.
Which tier should you recommend?

A) The presentation tier
B) The data tier
C) The data access tier
D) The business tier

2. You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
During testing of the application, you identify several bottlenecks by using Windows Task Manager and Windows Performance Monitor.
You need to recommend a system test strategy that will meet the following requirements:
- Identify major application workloads.
- Identify the functions of the application that are most impacted.
Which testing strategy should you recommend?

A) Stability testing
B) Security testing
C) Scalability testing
D) Usability testing

3. You are designing a Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The application uses a subset of the functionality provided by a third-party COM component that will be replaced later.
The application developers must have access to only the required subset of functionality.
You need to recommend a solution that meets the requirements.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) In the adapter assembly, use an embedded interop reference.
B) Create an adapter assembly that exposes the entire functionality of the COM component.
C) Create an adapter assembly that exposes the required subset of the COM component functionality.
D) In the adapter assembly, use a standard interop reference.

4. You are designing a Windows Presentation Foundation (WPF) data entry application. The application uses data binding to bind controls in the user interface (UI) to business objects. The UI uses validation rules for each input control.
The data validation rules change based on the state of the business object.
You need to recommend a validation strategy that will allow changes to the validation rules without changes to the UI code.
What should you recommend?

A) Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with ExceptionValidationRule elements.
B) Set the ValidationStep attribute on ValidationRule elements to RawProposedValue.
C) Set the ValidationStep attribute on ValidationRule elements to CommittedValue.
D) Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with DataErrorValidationRule elements.

5. You are debugging a Windows application that uses Windows Presentation Foundation (WPF) and Microsoft Visual Studio 2010.
The application is deployed as an XAML browser application (XBAP). Some users report that they are not able to use the drag-and-drop functionality.
You need to ensure that all users can use the drag-and-drop functionality.
What should you do?

A) Register the assembly that contains the IDataObject objects to the GAC on all client computers.
B) Use loose XAML.
C) Require the FullTrust permission on the XBAP application.
D) Add the URL for the application to the browser's trusted sites list.

Solutions: