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

1. 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 the user interface thread.
C) Use asynchronous method calls from the user interface thread.
D) Use synchronous method calls from a thread other than the thread on which the user interface runs.

2. You are designing a sales and inventory tracking system by using Microsoft Visual Studio 2010 and Microsoft SQL Server 2008.
The sales, inventory, and shipping tables will reside in different databases on different
database servers.
You need to ensure that the tables are updated simultaneously.
What should you do?

A) Use Distributed transactions.
B) Use the ADO.NET Entity Framework.
C) Use Microsoft Sync Framework.
D) Use LINQ to SQL.

3. 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 application's dispatcher on the main application thread.
Record relevant application-specific information to an external log.
B) 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.
C) Create a global WIN 32 unhandled exception filter.
Record relevant application-specific information to an external log from within the filter.
D) Subscribe to the unhandled exception event handler for the AppDomain object.
Record relevant application-specific information to an external log.

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 the user interface thread.
C) Use asynchronous method calls from the user interface thread.
D) Use synchronous method calls from a thread other than the thread on which the user interface runs.

5. You are designing an update to an existing Windows Presentation Foundation (WPF) application. You plan to use Microsoft Visual Studio 2010. The updated WPF application will require a specific version of a third-party component.
You have the following requirements:
- Deploy the update by using Windows Installer. - Update the WPF application only if the required version of the third-party component is present on the client computer.
You need to recommend configuration settings for the application installer.
Which property should you recommend be set?

A) TheRemovePreviousVersions property of the Setup Project
B) The Version property of the Setup Project
C) The Version property of the .NET Launch Condition
D) The Condition property of a new Launch Condition

Solutions: