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Microsoft TS: Accessing Data with Microsoft .NET Framework 4 Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database.
The Data Definition Language (DDL) script of the database contains the following code segment:
CREATE TABLE [Sales].[SalesOrderHeader]( [SalesOrderID] [int] IDENTITY(1,1) NOT NULL, [BillToAddressID] [int] NOT NULL, ... CONSTRAINT [PK_SalesOrderHeader_SalesOrderID] PRIMARY KEY CLUSTERED ([SalesOrderID] 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?

A) Option
B) Option
C) Option
D) Option

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application that
connects to a database by using the Entity Framework.
You create an Entity Data Model (EDM) by using the Generate from database wizard for the following
tables.

You need to ensure that the EDM contains an entity type named Employee that contains all of the data from
both tables.
What should you do?

A) Modify the .edmx file to include the following line of code. <NavigationProperty Name="Type" FromRole="EmployeeAccess" ToRole="Employee" />
B) Create an inheritance relationship between the Employee and EmployeeAccess entities, and use CanAccessBuildings as an inheritance condition.
C) Delete the EmployeeAccess entity, create a new property named CanAccessBuildings on the Employee entity, and add a mapping for the new property.
D) Create a one-to-one association named CanAccessBuildingsAssociation between the EmployeeAccess entity and the Employee entity.

3. You develop a Microsoft .NET application that uses Entity Framework to store entities in a Microsft SQL
Server 2008 database.
While the application is disconnected from the database, entities that are modified, are serialized to a local
file.
The next time the application connects to the database, it retrieves the identity from the database by using
an object context
named context and stores the entity in a variable named remoteCustomer.
The application then serializes the Customer entity from the local file and stores the entity in a variable
named localCustomer.
The remoteCustomer and the localCustomer variables have the same entity key.
You need to ensure that the offline changes to the Customer entity is persisted in the database when the
ObjectContext.SaveChanges() method is called.
Which line of code should you use?

A) context.ApplyOriginalValues("Customers", localCustomer);
B) context.ApplyOriginalValues("Customers", remoteCustomer);
C) context.ApplyCurrentValues("Customers", localCustomer);
D) context.ApplyCurrentValues("Customers", remoteCustomer);

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application. You use the Entity Framework Designer to create the following Entity Data Model.

The application contains a class as shown in the following code segment. (Line numbers are included for
reference only.)
01 public class MyBaseClass : EntityObject
02 {
03 ....
04 }
You need to ensure that all generated entities inherit from MyBaseClass. What should you do?

A) Change MyBaseClass to inherit from ObjectContext.
B) Use the ADO.NET EntityObject Generator template to configure all entities to inherit from MyBaseClass.
C) Modify the generated code file so that all entities inherit from MyBaseClass.
D) Create a new ObjectQuery that uses MyBaseClass as the type parameter.

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application uses the ADO.NET Entity Framework to model entities. You deploy an application to a
production server.
The application uses the model and mapping files that are deployed as application resources.
You need to update the conceptual model for the application on the production server. What should you do?

A) Copy the updated .edmx file to the production server.
B) Recompile the application and redeploy the modified assembly file.
C) Copy the updated .ssdl file to the production server.
D) Copy the updated .csdl file to the production server.

Solutions: