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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 develop an application.
You use the ADO.NET Entity Framework Designer to model entities.
You need to ensure that the entities are self-tracking. What should you do in the ADO.NET Entity
Framework Designer?

A) Add an ADO.NET Self-Tracking Entity Generator to the model.
B) Add an ADO.NET EntityObject Generator to the model.
C) Change the Transform Related Text Templates On Save option to False.
D) Change the Code Generation Strategy option from Default to None.

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

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
You use the ADO.NET Entity Framework to model entities. The application connects to a Microsoft SQL
Server database named AdventureWorks.
The application includes the following code segment. (Line numbers are included for reference only.)
01 using (AdventureWorksEntities context = new AdventureWorksEntities())
02 {
03 ObjectQuery <SalesOrderHeader> orders = context.SalesOrderHeader.
Where("it.CreditCardApprovalCode IS NULL").Top("100"); 04 foreach (SalesOrderHeader order in orders){ 05 order.Status = 4; 06 } 07 try{ 08 context.SaveChanges(); 09 } 10 catch (OptimisticConcurrencyException){ 11 ... 12 } 13 }
You need to resolve any concurrency conflict that can occur. You also need to ensure that local changes
are persisted to the database.
Which code segment should you insert at line 11?

A) context.Refresh(RefreshMode.StoreWins, orders); context.AcceptAllChanges();
B) context.Refresh(RefreshMode.ClientWins, orders); context.AcceptAllChanges();
C) context.Refresh(RefreshMode.StoreWins, orders); context.SaveChanges();
D) context.Refresh(RefreshMode.ClientWins, orders); context.SaveChanges();

4. 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 manage customer and related order records.
You add a new order for an existing customer. You need to associate the Order entity with the Customer
entity.
What should you do?

A) Call the Add method on the EntityCollection of the Order entity.
B) Set the Value property of the EntityReference of the Order entity.
C) Use the AddObject method of the ObjectContext to add both Order and Customer entities.
D) Use the Attach method of the ObjectContext to add both Order and Customer entities.

5. You use Microsoft .NET Framework 4.0 to develop an application that connects to a Microsoft SQL Server
2008 database.
You need to ensure that the application connects to the database server by using SQL Server
authentication.
Which connection string should you use?

A) SERVER=MyServer; DATABASE=AdventureWorks; Integrated Security=false;
B) SERVER=MyServer; DATABASE=AdventureWorks; UID=sa; PWD=secret;
C) SERVER=MyServer; DATABASE=AdventureWorks; Trusted Connection=true;
D) SERVER=MyServer; DATABASE=AdventureWorks; Integrated Security=SSPI; UID=sa; PWD=secret;

Solutions: