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

1. You are developing an application by using Microsoft .NET Framework 4 and Microsoft
Visual Studio 2010.
The application contains a grid that displays customer data stored in a database table.
Users report that the grid takes a long time to display.
You plan to implement data caching to improve loading time for the grid.
You need to ensure that the cached data expires when the customer data is updated.
What should you do?

A) Use the System.WeB.Caching.CacheDependency class.
B) Use a static variable to store the Grid object.
C) Use the ADO.NET Entity Framework.
D) Use the System.Runtime.Caching.SqlChangeMonitor class.

2. You are designing a Windows Presentation Foundation (WPF) application.
The WPF application must run against either Microsoft SQL Server 2008 or a third-party
database system without duplicating data access logiC.
You need to recommend a data access technology.
What should you recommend?

A) LINQ to Entities
B) LINQ to SQL
C) ADO.NET using DataSet objects and SqlDataReader objects
D) ADO.NET using DataSet objects and SqIDataAdapter objects

3. 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 Exception ValidationRule 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 Data ErrorValidat ion Rule elements.

4. 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 to a folder on the client computer. Deploy the COM components and interop assemblies to the Global Assembly Cache (GAC). 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, COM components, and interop assemblies to a folder on the client computer. Register the COM components.

5. ---
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) Include the primary interop assembly for Excel 2010.
B) Include the primary interop assembly for Excel 2007.
C) Embed the Excel 2010 COM library.
D) Embed the type information from the Excel 2010 COM library.

Solutions: