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

1. ---
You are designing updates to a Windows solution that processes complex scientific datA.The solution extracts analyzed data from Microsoft Excel by using an application-level add-in.
You have the following requirements:
Deploy the Excel add-in to client machines with the application.
Ensure that the solution supports Excel 2007 and Excel 2010.
Minimize the size of the deployment package.
You need to recommend an approach that meets the requirements.
What should you recommend?

A) Embed the type information from the Excel 2010 COM library.
B) Include the primary interop assembly for Excel 2007.
C) Embed the Excel 2010 COM library.
D) Include the primary interop assembly for Excel 2010.

2. You are developing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will run in a partially trusted sandbox.
You plan to deploy the application on client computers by using the ClickOnce deployment technology. You plan to sign the deployment and application manifest by using a trusted publisher certificate.
You need to ensure that the following requirements are met:
--
Users are not prompted for elevated permissions during application deployment. The application can request elevated permissions at runtime.
Where should you install the trusted publisher certificate?

A) In the trusted publisher store on each client computer
B) In the trusted publisher store on the deployment server
C) In the trusted root store on each client computer
D) In the trusted root store on the deployment server

3. You are developing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to use Microsoft Sync Framework to synchronize the data stored in a local Microsoft SQL Server Compact Edition database with the data stored in a centralized SQL Server 2008 database.
Four columns are added to each table involved in the synchronization process to track changes to the database. You add the following four columns to the database table.

Users report that the synchronization process is not always successful. You need to ensure that the application synchronizes data successfully. What should you do?

A) Option D
B) Option B
C) Option C
D) Option A

4. ---
You are analyzing a Windows client application that uses Microsoft Visual Studio 2010 and Microsoft SQL Server 2008.
The application updates two database tables from the main user interface (UI) thread.
You need to ensure that the following requirements are met:
The database tables are either updated simultaneously or not updated at all.
Users are notified of the success or failure of the updates.
Users are able to perform other tasks during the update process.
What should you do?

A) Move the database update logic to a BackgroundWorker thread.
Ensure that the thread is enclosed in a TransactionScope Using block in the BackgroundWorkerDoWork method.
B) Use TransactionScope in a Using block on the UI thread.
Create a DependentTransaction object within the block and pass the object to the BackgroundWorkerReportProgress method.
Use the object in the ReportProgress method to create a new TransactionScope block.
C) Use TransactionScope in a Using block on the UI thread.
Batch the database updates by setting the DbDataAdapter.UpdateBatchSize property to 2.
D) Use TransactionScope in a Using block on the main thread.
Create a BackgroundWorker thread within the block.
Move the database updates to the BackgroundWorkerDoWork method.

5. You are designing a .NET Framework 4 solution that contains a Windows Presentation Foundation (WPF) application. The WPF application includes CPU-intensive calculations.
The calculations can be run on a separate process and can effectively be isolated from the rest of the WPF application.
You need to recommend a deployment strategy that maximizes the scalability of the calculations for each user.
What should you recommend?

A) Deploy the calculation logic as a separate assembly along with the WPF application to each client computer. Invoke methods in the assembly synchronously.
B) Deploy the calculation logic as a separate assembly along with the WPF application to each client computer. Invoke methods in the assembly asynchronously.
C) Deploy the calculation logic as a Windows Communication Foundation (WCF) service to servers. Deploy the WPF application to each client computer.
D) Deploy the calculation logic as a Windows Communication Foundation (WCF) service to servers. Deploy the WPF application to the same servers.

Solutions: