70-518 : PRO: Design & Develop Wndws Apps Using MS .NET Framework 4

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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 認定 70-518 試験問題:

1. You are analyzing a Windows client application that uses Microsoft Visual Studio 2010 and
Microsoft SQL Server 2008.
The application updates two database tables from the main user interface (UI) thread.
You need to ensure that the following requirements are met:
---
The database tables are either updated simultaneously or not updated at all.
Users are notified of the success or failure of the updates.
Users are able to perform other tasks during the update process.
What should you do?

A) Use TransactionScope in a using block on the UI thread.
Create a DependentTransaction object within the block and pass the object to the BackgroundWorkerReportProgress method.
Use the object in the ReportProgress method to create a new TransactionScope block.
B) Use TransactionScope in a using block on the UI thread.
Batch the database updates by setting the DbDataAdapter.UpdateBatchSize property to 2.
C) Move the database update logic to a BackgroundWorker thread.
Ensure that the thread is enclosed in a TransactionScope using block in the BackgroundWorkerDoWork method
D) Use TransactionScope in a using block on the main thread.
Create a BackgroundWorker thread within the block.
Move the database updates to the BackgroundWorkerDoWork method.

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

3. You are designing a Windows Presentation Foundation (WPF) client application from which
employees will access a Web service.
Business partners will access the Web service by using proprietary client applications.
You need to recommend a solution for ensuring the integrity of data in the system.
What should you recommend?

A) Encrypt data while storing it in the database.
B) Implement data validation on the client and reject invalid datA.
C) Secure the Web service by using SSL.
D) Implement data validation at the service layer and reject invalid datA.

4. 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 interop assemblies to a folder on the client computer. Sign the interop assemblies.
C) 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).
D) Deploy the Windows Forms application, COM components, and interop assemblies to a folder on the client computer. Register the COM components.

5. You are designing an n-tier Windows solution that includes a data entry application. The solution uses Microsoft .NET Framework 4 and Microsoft SQL Server 2008.
The data entry application sends customer orders to a middle-tier server. The middle-tier server sends orders to a set of services that perform operations on the orders. Business rules determine which services to call and whether to run them in sequence or in parallel. The business rules are complex and data dependent.
The Windows solution must meet the following requirements:
- Optimize application performance by using dynamic load balancing. - Allow for business rules to be changed at runtime.
You need to recommend an approach that meets the requirements.
What should you recommend?

A) SQL Server stored procedures
B) Private message queues with a controller class on the middle-tier server
C) A Windows Communication Foundation (WCF) service for each operation, with a controller class on the middle-tier server
D) A routed service that uses Windows Communication Foundation (WCF) messaging

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