You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You
use Plain Old CLR objects (POCO) to model your entities.The application communicates with a
Windows Communication Foundation (WCF) Data Services service. You need to ensure that entities
can be sent to the service as XML. What should you do?

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The
application uses the ADO.NET Entity Framework to model entities. You define a Category class by
writing the following code segment. (Line numbers are included for reference only.)
01 public class Category
02 {
03 public int CategoryID { get; set; }
04 public string CategoryName { get; set; }
05 public string Description { get; set; }
06 public byte[] Picture { get; set; }
07
08 }
You need to add a collection named Products to the Category class. You also need to ensure that the
collection supports deferred loading. Which code segment should you insert at line 07?

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application.The
application connects to a Microsoft SQL Server database. The Data Definition Language (DOL) script
of the database contains the following code segment.
CREATE TABLE [Sales].[SalesOrderHeader](
[SalesOrdedD] [int] IDENTITY(1,1)NOT NULL,
(BillToAddressID][int] NOT NULL,
…CONSTRAINT [PK_SalesOrderHeader_SalesOrder1D]
PRIMARY KEY CLUSTERED ([SalesOrder1D]ASC)
)ALTER TABLE [Sales].[SalesOrderHeader]
WITH CHECK ADD CONSTRAINT [FK_SalesOrderHeader_Address]
FOREIGN KEY{[BilIToAddressID])
REFERENCES [Person] [Address](AddressID])
You create an ADO.NET Entity Framework model. You need to ensure that the entities of the model
correctly map to the DDL of the database. What should your model contain?