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

1. ---
You are designing a .NET Framework 4 solution. The solution contains a Windows Presentation Foundation (WPF) application and a Windows Communication Foundation (WCF) Web service.
The WPF application uses the WCF Web service to store data in a Microsoft SQL Server 2008 database.
You have the following requirements:
Ensure that the WPF application functions while users' computers are offline.
Minimize the time spent sending data to the WCF Web service.
Minimize disk space requirements for data storage.
You need to recommend an approach for synchronizing data between the WPF application and the database.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Create a local caching solution that periodically checks for Internet connectivity, uses local memory, and batches changes to the WCF Web service.
B) Store data in DataSet objects. Serialize data locally by using XML serialization.
C) Store data in custom business objects. Serialize data locally by using custom serialization.
D) Create a local caching solution that periodically checks for Internet connectivity and writes directly to the local data store and to the WCF Web service.

2. You design a Windows Presentation Foundation (WPF) application that interacts with a Windows Communication Foundation (WCF) Web service. The WCF Web service throws exceptions of type Exception.
The WPF application crashes when the WCF Web service throws an exception.
You need to recommend an error-handling strategy that allows users to submit updated data to the WCF Web service without restarting the WPF application.
What should you recommend?

A) Modify the Web service to throw custom exceptions derived from the ApplicationException class.
B) Modify the Web service to throw exceptions of type InvalidOperationException
C) Modify the Web service to throw custom exceptions derived from the Exception class.
D) Modify the Web service to throw exceptions of type FaultExceptton.

3. You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application.
You need to recommend an approach for ensuring that the solution can support 5,000 concurrent users.
What should you recommend?

A) Integration testing
B) Stress testing
C) Component stress testing
D) Buffer overflow testing

4. 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

5. You are designing an n-tier solution that connects to a Microsoft SQL Server 2008 database.
You plan to deploy the database to development machines and to a staging database server from within Microsoft Visual Studio 2010. You plan to set up separate build configurations for development and staging. You also plan to deploy to multiple production database servers managed by an outside vendor.
You must not allow the outside vendor to access the Visual Studio projects.
You need to recommend an approach for configuring and deploying the production database servers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Use a SQL Server 2008 Database Project.
B) Use a Visual Basic SQL CLR Database Project.
C) Use VSDBCMD to deploy the production databases.
D) Use SQL Server 2008 Management Studio to deploy the production databases.

Solutions: