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

1. ---
You are designing a distributed application that will be deployed to 5,000 users worldwide. Servers on five continents will host the Web services and the Microsoft SQL Server 2008 databases that support the application.
You have the following requirements:
Collect information about all errors associated with the application.
Store and view all error information in a centralized location.
Minimize the network bandwidth required for the transfer of error information.
You need to recommend a strategy for reporting error information.
Which strategy should you recommend?

A) Write error messages to the event logs on the local computers. Use Windows Management Instrumentation (WMI) to view the error information.
B) Write error messages to the SQL Server databases. Synchronize the databases by using merge replication.
C) Write error messages to the SQL Server databases. Synchronize the databases by using transactional replication.
D) Write error messages to the event logs on the local computers. Use Windows Error Reporting to view the error information.

2. You are designing a .NET Framework 4 solution that contains a Windows Presentation Foundation (WPF) application. The WPF application includes CPU-intensive calculations.
The calculations can be run on a separate process and can effectively be isolated from the rest of the WPF application.
You need to recommend a deployment strategy that maximizes the scalability of the calculations for each user.
What should you recommend?

A) Deploy the calculation logic as a Windows Communication Foundation (WCF) service to servers. Deploy the WPF application to each client computer.
B) Deploy the calculation logic as a Windows Communication Foundation (WCF) service to servers. Deploy the WPF application to the same servers.
C) Deploy the calculation logic as a separate assembly along with the WPF application to each client computer. Invoke methods in the assembly synchronously.
D) Deploy the calculation logic as a separate assembly along with the WPF application to each client computer. Invoke methods in the assembly asynchronously.

3. You are evaluating an existing Windows Presentation Foundation (WPF) application. The WPF application runs in a Web browser as a XAML browser application (XBAP). The WPF application runs in the Intranet zone with Full Trust. A client certificate for the WPF application has been generated.
Users are unable to access the WPF application. You locate the following message in the security log: "User has refused to grant required permissions to the application." Users state that they are clicking OK in all message boxes that appear.
You need to recommend an approach for ensuring that the WPF application runs correctly on all client computers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Use the Code Access Security Policy Tool to grant the appropriate permissions.
B) Import the client certificate to the Trusted Root store.
C) Sign the ClickOnce manifest for the WPF application.
D) Modify the ClickOnce manifest for the WPF application to grant the appropriate permissions.

4. 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) Create stored procedures to abstract the tables.
B) Use System.Runtime.Caching to cache query results on the client.
C) Denormalize the data to fewer tables.
D) Create a separate data layer with caching.

5. You are designing a Windows Presentation Foundation (WPF) application.
The application data files have the file name extension .abC.
The WPF application installer must meet the following requirements: - Add a shortcut to the desktop. - Install infrequently used assemblies on demand.
--
Associate the .abc file name extension with the WPF application. Roll back the installation in the event of a failure.
You need to recommend a deployment method.
What should you recommend?

A) Windows Installer
B) XCopy
C) Background Intelligent Transfer Service (BITS)
D) ClickOnce

Solutions: