Microsoft 070-518 real exam prep : PRO: Design & Develop Wndws Apps Using MS .NET Framework 4

You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You need to use a replacement culture for the application at runtime. You also need to ensure that the information in the custom culture will be available to the application.
Which two tasks should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Register the replacement culture by using the CultureAndRegionlnfoBuilder class.
• B. Call the Save method of the CultureAndRegionlnfoBuilder class instance.
• C. Restart the process that is displaying the user interface.
• D. Register the replacement culture by using the CultureInfo class.

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

You are modifying an existing Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The WPF application uses a wizard to capture data and insert the data into a database. The database includes one parent table and many child tables.
Inserting captured data in the database locks many database tables and delays application access.
You have the following requirements:
Reduce delays when saving datA.
Ensure that other application users are not blocked from reading datA.
Ensure that captured data is available only after all child tables are updated.
You need to recommend an approach for inserting captured data into the database.
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What should you recommend?

• A. Insert captured data by using optimistic concurrency as the user completes each wizard page.
• B. Insert captured data by using non-transactional operations when the user completes the wizard.
• C. Insert captured data by using a single transaction as the user completes each wizard page.
• D. Insert all captured data in a single transaction when the user completes the wizard.

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. In the adapter assembly, use a standard interop reference.
• B. Create an adapter assembly that exposes the entire functionality of the COM component.
• 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.

You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The business logic layer of the application is implemented by using Windows Communication Foundation (WCF).
You create a duplex bidirectional WCF service that contains a single operation. The service operation sends the result back to the client application by using a two-way callback operation.
You plan to design a service interaction strategy.
You need to ensure that deadlocks are prevented.
What should you do?

• A. Configure the CallbackBehaviorAttribute attribute to use the Synchronization context in the callback class.
• B. Configure the ServiceBehaviorAttribute attribute to use the Reentrant or Multiple concurrency mode in the service class.
• C. Configure the CallbackBehaviorAttribute attribute to use the Reentrant or Multiple concurrency mode in the callback class.
• D. Configure the ServiceBehaviorAttribute attribute to use the Synchronization context in the service class.