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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:

1. You are designing a sales and inventory tracking system by using Microsoft Visual Studio 2010 and Microsoft SQL Server 2008.
The sales, inventory, and shipping tables will reside in different databases on different
database servers.
You need to ensure that the tables are updated simultaneously.
What should you do?

A) Use LINQ to SQL.
B) Use Distributed transactions.
C) Use Microsoft Sync Framework.
D) Use the ADO.NET Entity Framework.

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

3. You are designing a Windows Presentation Foundation (WPF) application for your company by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The business layer of the application is implemented by using Windows Communication Foundation (WCF).
You plan to support non-repudiation and data integrity for WCF messages.
You need to design the security strategy for the application.
What should you do?

A) Attach a digital signature to the WCF messages.
B) Encrypt the WCF messages by using the Internet Protocol Security (IPSec) protocol.
C) Implement message-level security by using digital certificates as client computer credentials.
D) Encrypt the WCF messages by using the Secure Sockets Layer (SSL) protocol.

4. You are designing a .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application, a Windows service, and a private assembly shared by the WPF application and by the Windows service.
The solution stores data in a local Microsoft SQL Server Compact 3.5 database. The WPF application and Windows service will each access the database directly. The solution will be installed by using Windows Installer.
You have the following requirements:
- The installer must allow users to specify the installation folders for the WPF application and for the database. - The solution must support the deployment of updates to the WPF application without restarting the Windows service.
You need to recommend an approach for installing the solution.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) In the installer, set an environment variable that defines the database installation path.
B) Install the Windows service to the same folder as the WPF application.
C) In the installer, create a registry key that stores the WPF application installation path.
D) Install the Windows service to a different folder from the WPF application.

5. You are designing a distributed Windows Presentation Foundation (WPF) application.
You have the following requirements: - Ensure that all errors are logged in a central location.
- Ensure that the WPF application logs related errors within a single transaction - Secure error information during transmission.
You need to recommend a strategy for collecting error information.
What should you recommend?

A) Write the information to the Windows Application log on each client system. Use Windows Error Reporting to collect the results.
B) Create a Windows Communication Foundation (WCF) service. Use the basicHttpBinding protocol to transport the information.
C) Write the information to the Windows Application log on each client system. Use Windows Management Instrumentation (WMI) to collect the results.
D) Create a Windows Communication Foundation (WCF) service. Use the wsHttpBinding protocol to transport the information.

Solutions: