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

1. You are designing a Windows Forms application that allows users to search a product catalog and place orders.
You have the following requirements:
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Display a progress indicator while the application is searching the catalog. Ensure that users can cancel search operations.
You need to recommend an approach that meets the requirements.
What should you recommend?

A) Use a BackgroundWorker component to perform the search.
B) Execute the search on the user interface thread. Provide a Cancel button to cancel the search.
C) Implement the search as a duplex service.
D) Implement the search as a Windows Communication Foundation (WCF) service by usingthe AsyncPattern property of the OperationContractattribute.

2. You are designing a .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application. The WPF application connects to a Microsoft SQL Server 2008 database. You plan to deploy the WPF application to millions of client computers. The SQL Server database will be hosted in a data center.
The WPF application will query the database to provide type-ahead assistance as users enterdata.
The WPF application will send a query after each character is entered. Each query will access multiple joined tables.
You need to recommend an approach for maximizing scalability of the solution.
What should you recommend?

A) Use System.Runtime.Caching to cache query results on the client.
B) Create a separate data layer with caching.
C) Denormalize the data to fewer tables.
D) Create stored procedures to abstract the tables.

3. You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
You have designed the application to use the ADO.NET Entity Framework for the Data Access Layer (DAL).
You have designed the user interface (UI) of the application by using the Model-View-ViewModel (M-V-VM) pattern.
The middle tier of the application is designed by using Windows Communication Foundation (WCF).
The database schema changes often. The DAL entity objects are required to be referenced from the middle tier and the ViewModel layer of the UI.
You need to ensure that the DAL entity objects are updated when the database schema changes.
What should you do?

A) Create persistent-ignorant objects.
B) Create an observable collection of objects.
C) Create persistent-aware objects.
D) Create typed DataSets.

4. You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You need to use a replacement culture for the application at runtime.
You also need to ensure that the information in the custom culture will be available to the application.
Which two tasks should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Register the replacement culture by using the CultureAndRegionInfoBuilder class.
B) Register the replacement culture by using the CultureInfo class.
C) Call the Save method of the CultureAndRegionInfoBuilder class instance.
D) Restart the process that is displaying the user interface.

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

Solutions: