70-518 무료 덤프문제 온라인 액세스

You are designing a Windows Presentation Foundation (WPF) application by using
Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will consist of a user interface (UI) tier and a middle tier. The middle tier will
be implemented by using Windows Communication Foundation (WCF).
You plan to design the exception handling strategy for the application. Each method in the middle tier will contain the following catch block. Catch e AsArgumentNullException.
Throw e
When testing the application, you discover that all ArgumentNullExceptions that occur in
the middle tier do not contain accurate stack trace information.
What should you do?

• A.Remove the exception parameter from the ArgumentNullException handler.
• B.Use a DispatcherUnhandledExceptionEvent handler in the UI tier.
• C.Use a DispatcherUnhandledExceptionEvent handler in the middle tier.
• D.Create an ArgumentNullException handler in the UI tier.

You are designing a Windows application by using Microsoft .NET Framework 4.
Remote users have limited network connectivity. Users will not have write permissions to
the local file system.
You plan to design the error logging strategy for the application.
You need to ensure that the application can collect error information. You also need to
ensure that the errors can be analyzed from a centralized location. What should you do?

• A.Log the errors to a Web service.
• B.Log the errors to the Windows System event log.
• C.Use a local log file.
• D.Use the Microsoft Sync Framework.

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 operations datA.
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 an absolute expiration.
• B.UseSystem.Web.Caching with an absolute expiration.
• C.UseSystem.Web.Caching with a sliding expiration.
• D.Use System.Runtime.Caching with a sliding expiration.

You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to design an instrumentation strategy for the application.
You need to ensure that the strategy meets the following requirements:
- Captures detailed performance information. - Enables or disables diagnostic messages by using an application configuration option without requiring the application to restart.
What should you design?

• A.A custom trace listener
• B.A custom performance counter
• C.An override to the EventLog class
• D.An override to the Debug class

You are developing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will consume a Windows Communication Foundation (WCF) service. The WCF service will provide data to the application. You plan to use the ADO.NET Entity Framework to create a data model that will be used by the application.
Another development team makes changes to the WCF service data contract.
You need to ensure that changes made to the WCF service data contract do not require the application to be recompiled.
What should you do?

• A.Create a storage model based on the schema of the existing WCF service. Update the mapping file when the new version of the WCF service is available.
• B.Create a storage model based on the business model. Use a class generated from the storage model for programming,
• C.Create a conceptual model and a storage model based on the existing version of the WCF service.
• D.Create a conceptual model based on the business model. Use a class generated from the conceptual model for programming. Update the mapping file when the new version of the WCF service is available.