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.

You are designing an update to an existing Windows Presentation Foundation (WPF) application. You plan to use Microsoft Visual Studio 2010. The updated WPF application will require a specific version of a third-party component.
You have the following requirements:
- Deploy the update by using Windows Installer. - Update the WPF application only if the required version of the third-party component is present on the client computer.
You need to recommend configuration settings for the application installer.
Which property should you recommend be set?

• A. The Condition property of a new Launch Condition
• B. The Version property of the Setup Project
• C. TheRemovePreviousVersions property of the Setup Project
• D. The Version property of the .NET Launch Condition

You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to implement control caching to improve the loading time of a control. It is not required to refresh the content of the control after the application loads.
The application will be compiled by using the .NET 4 client profile.
You need to ensure that the following requirements are met:
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The control is reusable in multiple forms.
Data in the control is cached when the application is loaded.
What should you do?

• A. In the Load event of the application window, add code to load the control. Save the control to an instance variable.
• B. In the constructor of the application window, add code to load the control. Save the control to the cache by using objects in the System.WeCaching namespace.
• C. In the constructor of the application window, add code to load the control. Save the control to a static variable.
• D. In the Load event of the application window, add code to load the control. Save the control to the cache by using objects in the System.WeB.Caching namespace.

You are developing an application by using Microsoft .NET Framework 4.
The application will be used by all employees of your company. Local file stores on the computers are secure and inaccessible remotely.
You need to design a remote monitoring strategy to monitor the usage time of the application by each user.
What should you do?

• A. Use the System.Management.Instrumentation namespace to publish startup, shutdown, and user idle time events of the application. Publish the events to Microsoft Operations Manager.
• B. Use the System.Management.Instrumentation namespace to issue event queries against methods that pass ProgressEvent and StoppedEvent arguments. Publish the events to the Event Log.
• C. Create a TraceLog object and the Trace object by using the System.Diagnostics element to trace startup, shutdown, and user idle time events throughout the application.
• D. Create a TraceLog object by using the System.Diagnostics element in the application configuration file. Add the TraceSource element for startup, shutdown, and user idle time events.

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. Microsoft Sync Framework
• B. WCF services
• C. TheSystem.WeB.Caching namespace classes
• D. XML files