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.)

You are designing an n-tier .NET Framework 4 solution that includes a Windows
Presentation Foundation (WPF) application. The WPF application will access data stored in
a Microsoft SQL Server 2008 database by using the solution’s data access tier. The data
access tier must also be available from within Microsoft Excel 2010. You need to
recommend a technology for accessing the data access tier. Which technology should you
recommend?

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?

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 retrieved data. • Target the .NET Framework 4 Client Profile. You
need to recommend an approach to data caching. What should you recommend?

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. What should you recommend?

You are working with a Windows Presentation Foundation (WPF) application that uses .NET
Framework 4. Your team is responsible for making significant changes to the application
functionality. You need to recommend an approach for identifying features that no longer
work properly as a result of code changes. Which testing methodology should you
recommend?

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?

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?

You are designing a Windows Presentation Foundation (WPF) application that connects to
a data access layer on a server. You have the following requirements for all security-related
exceptions: • Exceptions that occur in the data access layer must be handled in a single
exception handler in the WPF application. • Exceptions must pass customized messages
back to the WPF application. You need to recommend an approach for creating new
exception classes in the data access layer. From which class should you inherit?

You are designing a mission-critical Windows Presentation Foundation (WPF) application
that uses .NET Framework 4. You need to recommend an approach for identifying repair

and recovery time. What should you recommend?