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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 access tier
C) The business tier
D) The data tier

2. You are designing a complex and critical Windows desktop application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to implement a logging strategy for the application.
You need to record all unexpected errors that occur in the application.
What should you do?

A) Subscribe to the unhandled exception event handler for the AppDomain object.
Record relevant application-specific information to an external log.
B) Create a global WIN 32 unhandled exception filter.
Record relevant application-specific information to an external log from within the filter.
C) Create a generic catch (Exception e) block in the Main method of the application.
Record relevant application-specific information to a log in the Main method.
D) Subscribe to the unhandled exception event handler for the application's dispatcher on the main application thread.
Record relevant application-specific information to an external log.

3. You are designing a Windows Presentation Foundation (WPF) application.
The application data files have the file name extension .abC.
The WPF application installer must meet the following requirements: - Add a shortcut to the desktop. - Install infrequently used assemblies on demand.
--
Associate the .abc file name extension with the WPF application. Roll back the installation in the event of a failure.
You need to recommend a deployment method.
What should you recommend?

A) Windows Installer
B) XCopy
C) ClickOnce
D) Background Intelligent Transfer Service (BITS)

4. You are designing a Windows Presentation Foundation (WPF) application.
The application calls methods that perform long-running computational tasks.
You need to recommend an approach for ensuring that the application remains responsive
while the tasks are executing What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A) Run the user interface from a new multi-threaded apartment (MTA) thread.
B) Use synchronous method calls from a thread other than the thread on which the user interface runs.
C) Use asynchronous method calls from the user interface thread.
D) Use synchronous method calls from the user interface thread.

5. You are designing a Windows Presentation Foundation (WPF) application that will be used to display real-time data from a Microsoft SQL Server 2008 database.
You need to recommend an approach for displaying the datA.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Use a SqlCacheDependency object in the data layer to query the database when a change is detected.
B) Implement OneWay binding between the controls in the WPF application and objects in the data layer.
C) Use a System.Runtime.Caching object in the data layer with a sliding expiration, and query the database when the Cache object expires.
D) Implement OneWayToSource binding between the controls in the WPF application and objects in the data layer.

Solutions: