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

1. You design a Windows Presentation Foundation (WPF) application that interacts with a Windows Communication Foundation (WCF) Web service. The WCF Web service throws exceptions of type Exception.
The WPF application crashes when the WCF Web service throws an exception.
You need to recommend an error-handling strategy that allows users to submit updated data to the WCF Web service without restarting the WPF application.
What should you recommend?

A) Modify the Web service to throw exceptions of type InvalidOperationException.
B) Modify the Web service to throw custom exceptions derived from the ApplicationException class.
C) Modify the Web service to throw exceptions of type FaultException.
D) Modify the Web service to throw custom exceptions derived from the Exception class.

2. You are preparing to deploy a solution that includes a Windows Forms application and several COM components. Unsigned interop assemblies have been created for each of the COM components.
You need to recommend an approach for deploying the solution.
What should you recommend?

A) Deploy the Windows Forms application and interop assemblies to a folder on the client computer. Sign the interop assemblies.
B) Deploy the Windows Forms application, COM components, and interop assemblies to a folder on the client computer. Register the COM components.
C) Deploy the Windows Forms application and COM components to a folder on the client computer. Deploy the interop assemblies to the Global Assembly Cache (GAC).
D) Deploy the Windows Forms application to a folder on the client computer. Deploy the COM components and interop assemblies to the Global Assembly Cache (GAC). Register the COM components.

3. You are designing a Windows application by using Microsoft .NET Framework 4.
Remote users have limited network connectivity. Users will not have write permissions to
the local file system.
You plan to design the error logging strategy for the application.
You need to ensure that the application can collect error information. You also need to
ensure that the errors can be analyzed from a centralized location. What should you do?

A) Use the Microsoft Sync Framework.
B) Use a local log file.
C) Log the errors to a Web service.
D) Log the errors to the Windows System event log.

4. ---
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 Excel 2010 COM library.
B) Include the primary interop assembly for Excel 2007.
C) Include the primary interop assembly for Excel 2010.
D) Embed the type information from the Excel 2010 COM library.

5. You are designing a Windows Forms application. The application connects to a Microsoft SQL Server 2008 database.
You need to recommend an approach for retrieving and logging all informational messages and error messages reported by the database.
What should you recommend?

A) Retrieve informational messages and error messages by creating a handler for the InfoMessage event.
B) Retrieve informational messages in a SqlException object. Retrieve error messages by creating a handler for the InfoMessage event.
C) Retrieve informational messages and error messages in a SqlException object.
D) Retrieve informational messages by creating a handler for the InfoMessage event. Retrieve error messages in a SqlException object.

Solutions: