PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 (070-518) Free Practice Test

Question 1

You are designing an application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
The application will be used by a sales team to enter sales orders and update customer information.
You need to ensure that the application meets the following requirements:
- Allows users to enter sales orders while their computers are disconnected from the
network - Uploads sales orders to the server database when connected to the network - Compiles against the .NET Framework 4 client profile
What should you use?

A. WCF services

B. XML files

C. TheSystem.WeB.Caching namespace classes

D. Microsoft Sync Framework

Correct Answer: D

Question 2

You are designing a Windows Presentation Foundation (WPF) application. The WPF application displays indicators to compare your company's past performance to the current day's operationsdata.
The WPF application accesses historic data from your company's data warehouse through a Web service, and accesses current data directly from a Microsoft SQL Server 2008 database.
The WPF application must meet the following requirements:
- Retrieve historic data from the data warehouse at application startup and then once per day.
- Retrieve current data from the database every five minutes, and then update the
indicators.
- Cache all retrieveddata.
- Target the .NET Framework 4 Client Profile.
You need to recommend an approach to data caching.
What should you recommend?

A. Use System.Runtime.Caching with a sliding expiration.

B. UseSystem.Web.Caching with an absolute expiration.

C. UseSystem.Web.Caching with a sliding expiration.

D. Use System.Runtime.Caching with an absolute expiration.

Correct Answer: C

Question 3

You are designing a Windows Presentation Foundation (WPF) application.
You have the following requirements:
- Run client-side validation tests on a large result set from a Microsoft SQL Server 2008 database. - Validate each row of data without storing the entire result set in memory.
You need to recommend a data access technology.
What should you recommend?

A. LINQ to Entities using the ElementAt() method

B. ADO.NET using SqIDataReader objects

C. ADO.NET using SqIDataAdapter objects and DataSet objects

D. LINQ to SQL using the ElementAt() method

Correct Answer: B

Question 4

You are designing an n-tier solution that connects to a Microsoft SQL Server 2008 database.
You plan to deploy the database to development machines and to a staging database server from within Microsoft Visual Studio 2010.
You plan to set up separate build configurations for development and staging. You also plan to deploy to multiple production database servers managed by an outside vendor.
You must not allow the outside vendor to access the Visual Studio projects.
You need to recommend an approach for configuring and deploying the production database servers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Use VSDBCMD to deploy the production databases.

B. Use a Visual C# SQL CLR Database Project.

C. Use SQL Server 2008 Management Studio to deploy the production databases.

D. Use a SQL Server 2008 Database Project.

Correct Answer: B,C

Question 5

You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
The application retrieves customer data from an enterprise resource planning (ERP) system.
You need to ensure that the following requirements are met:
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Customer data is retrieved only once.
Customer data is available on multiple forms within the application.
Forms can implement Two-Way binding to the customer datA.
What should you do?

A. Store the results of the query in a static Data Table object that is used by all the forms.

B. Design a static class for the data that implements the IObservable interface. Subscribe to the static class from each of the forms that use the datA.

C. Design a static class for the data that implements the INotifyPropertyChanged interface. Raise the PropertyChanged event to notify the forms when data is changed.

D. Store the results of the query in a local XML file. Bind all forms to an XMLDataAdapter object that references the local XML file.

Correct Answer: A

Question 6

You are evaluating an existing Windows Presentation Foundation (WPF) application. The WPF application runs in a Web browser as a XAML browser application (XBAP). The WPF application runs in the Intranet zone with Full Trust. A client certificate for the WPF application has been generated.
Users are unable to access the WPF application. You locate the following message in the security log: "User has refused to grant required permissions to the application." Users state that they are clicking OK in all message boxes that appear.
You need to recommend an approach for ensuring that the WPF application runs correctly on all client computers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Use the Code Access Security Policy Tool to grant the appropriate permissions.

B. Import the client certificate to the Trusted Root store.

C. Modify the ClickOnce manifest for the WPF application to grant the appropriate permissions.

D. Sign the ClickOnce manifest for the WPF application.

Correct Answer: A,D

Question 7

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. Create stored procedures to abstract the tables.

B. Create a separate data layer with caching.

C. Use System.Runtime.Caching to cache query results on the client.

D. Denormalize the data to fewer tables.

Correct Answer: B

Question 8

You are designing an application by using Windows Presentation Foundation (WPF) and
Microsoft .NET Framework 4.
The user interface (UI) tier of the application will be implemented in WPF.
The middle tier of the application is implemented by using an existing COM component.
The middle tier contains a long-running method named ProcessDatA.
You need to ensure that users can continue to use the UI while ProcessData is running.
What should you do?

A. Call the DoEvents method of the Application class before invoking ProcessDatA.

B. Use the Invoke method of the Dispatcher class to call ProcessDatA.

C. Use an asynchronous worker thread to call ProcessDatA.

D. Call the Run method of the Dispatcher class before invoking ProcessDat

Correct Answer: C

Question 9

You are designing a Windows Forms application that allows users to search a product catalog and place orders.
You have the following requirements:
- 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. Implement the search as a duplex service.

B. Implement the search as a Windows Communication Foundation (WCF) service by using the AsyncPattern property of the OperationContractattribute.

C. Execute the search on the user interface thread. Provide a Cancel button to cancel the search.

D. Use a BackgroundWorker component to perform the search.

Correct Answer: D

Question 10

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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.

Correct Answer: A,C

Question 11

You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
The application will run on Windows 7-based kiosks that are located indoors and outdoors. The kiosk displays have a photo sensor that will update the application with the current ambient luminosity.
You need to ensure that the user interface (UI) of the application dynamically changes the application theme based on the ambient luminosity.
What should you use?

A. A RenderTransform control applied to the root canvas

B. A VisualBrush control to paint the UI

C. An attached behavior to change a merged resource dictionary

D. A visual state manager to add VisualStateGroup objects

Correct Answer: C

Question 12

You are designing a Windows Presentation Foundation (WPF) application that will be used to display real-time data from a Microsoft SQL Server 2008 database.
You need to recommend an approach for displaying the datA.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Implement OneWayToSource binding between the controls in the WPF application and objects in the data layer.

B. Implement OneWay binding between the controls in the WPF application and objects in the data layer.

C. Use a SqlCacheDependency object in the data layer to query the database when a change is detected.

D. Use a System.Runtime.Caching object in the data layer with a sliding expiration, and query the database when the Cache object expires.

Correct Answer: B,C

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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 (070-518) Free Practice Test