You are designing a Windows Presentation Foundation (WPF) application by using Microsoft NET Framework
4 and Microsoft Visual Studio 2010.
You plan to create an Author object that contains a Books property. The Books property contains a large
array of Books objects.
When users browse through author data in the application, they must be able to view all information related
to books written by that author without additional queries
you need to design a data access strategy that meets the requirement
which strategy should you use
You are designing an application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and
Microsoft SQL Server 2008
The application will be used by a sales team to enter sales orders and update customer information. You
need to ensure that the application meets the following requirements "Allows users to enter sales orders
while their computers are disconnected from the network
"Uploads sales orders to the server database when connected to the network
"Compiles against the NET Framework 4 client profile.
What should you use?
You are developing an application by using Microsoft NET Framework 4 and Microsoft Visual Studio 2010.
The application accesses customer data stored on both Microsoft and non-Microsoft database servers.
You need to combine data from the multiple databases to display customer information.
Which data access technology should you use?
You are designing a Windows application by using Microsoft NET Framework 4, Microsoft Visual Studio 2010,
and Microsoft SQL Server 2008.
You need to design a data access strategy that meets the following requirements:
"Automatically tracks changes
"Maps the database data model to the object model
Which data access technology should you use?
You are developing a Windows application to manage customer data by using Microsoft .NET Framework 4
and Microsoft Visual Studio 2010.
Data is stored in several geographically separated SQL Server databases.
Modifications to the database schema have caused the application to fail.
You need to ensure that schema modifications will not cause application failure.
Which data access methodology should you use?
You are designing a Windows client application by using Microsoft .NET Framework 4.
You create a Global Positioning System (GPS) navigation application. Routing data is stored on a server. A
wireless data connection that has limited bandwidth allows the application to download data from the
server.
The application continuously shows a perspective view of the route ahead as a user sees it, based on the
position and direction of the vehicle.
Prior to navigation, a user types their destination and selects a route they will follow.
You need to ensure that when the position or direction of the vehicle changes, the perspective view is
updated immediately.
What should you do?
You are creating a Windows Presentation Foundation (WPF) application by using Microsoft NET Framework 4
and Microsoft SQL Server 2008.
You create a window that allows users to search for products that match a given name Search results are
displayed when the user types each letter of the product name
You use a method named Find Products to obtain the list of products
Users report that when they type a letter of the product name, the window stops responding for a varying
amount of time While the window stops responding, users cannot type more letters.
The window stops responding even when the search generates few results
You need to ensure that the window responds while users type a name
What should you do?
You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft NET
Framework 4. The application retrieves customer data from an enterprise resource planning (ERP) system.
You need to ensure that the following requirements are met:
"Customer data is retrieved only once.
"Customer data is available on multiple forms within the application.
"Forms can implement Two-Way binding to the customer data
What should you do?
You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET
Framework 4.
You plan to create a wizard by using a Window, a Frame, and several Page objects.
The wizard will use the Navigation Service. The Navigation Service will be invoked by buttons on the user
interface (UI).
You need to ensure that prior-page navigation can be disabled.
What should you do?
You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft NET
Framework 4.
You design a wizard for the application. The wizard contains many screens.
You need to ensure that users can move backward and forward through the screens. You also need to
ensure that users can navigate to the previous screen stored in history.
What should you do?