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

1. ---
You are designing a .NET Framework 4 solution. The solution contains a Windows Presentation Foundation (WPF) application and a Windows Communication Foundation (WCF) Web service.
The WPF application uses the WCF Web service to store data in a Microsoft SQL Server 2008 database.
You have the following requirements:
Ensure that the WPF application functions while users' computers are offline.
Minimize the time spent sending data to the WCF Web service.
Minimize disk space requirements for data storage.
You need to recommend an approach for synchronizing data between the WPF application and the database.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Create a local caching solution that periodically checks for Internet connectivity and writes directly to the local data store and to the WCF Web service.
B) Store data in DataSet objects. Serialize data locally by using XML serialization.
C) Store data in custom business objects. Serialize data locally by using custom serialization.
D) Create a local caching solution that periodically checks for Internet connectivity, uses local memory, and batches changes to the WCF Web service.

2. You are designing an n-tier .NET Framework 4 solution that includes a Windows
Presentation Foundation (WPF) application.
The WPF application will access data stored in a Microsoft SQL Server 2008 database by
using the solution's data access tier.
The data access tier must also be available from within Microsoft Excel 2010. You need to recommend a technology for accessing the data access tier. Which technology should you recommend?

A) WCF Data Services
B) LINQ to XML
C) LINQ to SQL
D) ADO.NET Entity Framework 4

3. You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application and a Windows Workflow Foundation (WF) component. The WF component contains functionality to incorporate frequently changing rules.
You need to recommend a tier for the deployment of the WF component that will not degrade the performance of the WPF application.
Which tier should you recommend?

A) The presentation tier
B) The data tier
C) The data access tier
D) The business tier

4. You are designing a Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The application uses a subset of the functionality provided by a third-party COM component that will be replaced later.
The application developers must have access to only the required subset of functionality.
You need to recommend a solution that meets the requirements.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Create an adapter assembly that exposes the entire functionality of the COM component.
B) In the adapter assembly, use a standard interop reference.
C) In the adapter assembly, use an embedded interop reference.
D) Create an adapter assembly that exposes the required subset of the COM component functionality.

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

Solutions: