Microsoft 70-516 : TS: Accessing Data with Microsoft .NET Framework 4

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Microsoft 70-516 Exam Syllabus Topics:

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

Question 1

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

You add the following code fragment:
using(var context = new AdventureWorksLTEntities())
{ Customer cust = context.Customers.First(); cust.CompanyName = "Contoso"; int count = 0;
}
The changes to the cust entity must be saved. If an exception is thrown, the application will attempt to save
up to 3 times.
If not, an exception is thrown. Which code segment should you use?

A. while(true)
{ context.SavingChanges += delegate(System.Object o, System.EventArgs e) {
if(count++ >2)
{
throw new Exception();
}
context.SaveChanges();
}
}
B. while(count++ < 3)
{
try
{
context.SaveChanges();
break;
}
catch(Exception)
{
}
}
C. while(context.ObjextStateManager.GetObjectStateEntry (cust).OriginalValues.IsDBNull(0)) {
if(count++ >2)
{
break;
}
context.SaveChanges();
}
D. while(cust.EntityState == EntityState.Modified)
{
try
{
context.SaveChanges();
}
catch(Exception)
{
if(count++ > 2 && context.Connection.State ==
ConnectionState.Broken
{
throw new Exception();
}
}
}

Question 2

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; Integrated Security=SSPI; UID=sa; PWD=secret;
C. SERVER=MyServer; DATABASE=AdventureWorks; UID=sa; PWD=secret;
D. SERVER=MyServer; DATABASE=AdventureWorks; Trusted Connection=true;

Question 3

The entity data model must be configured to provide a way you cal the sp_FindObsolete stored procedure. The returned data must implement the Descendants property.
In Visual Studio 2010, you open the Add functions Import dialog box from the EDMX diagram and enter the information shown in the following graphic.

You need to complete the configuration in the dialog box. What should you do?

A. In the Returns a Collection Of area, click Scalars and then, in the Scalars list, click string
B. In the Returns a Collection Of area, click Entities and then, in the Entities list, click Component
C. Click the Get Column Information button, click Create New Complex Type and then, in the Complex box, enter Parts.
D. In the Returns a Collection Of area, click Scalars and then, in the Scalars list, click Int32

Question 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 Plain Old CLR Objects (POCO) entities.
You create a new POCO class. You need to ensure that the class meets the following requirements:
-It can be used by an ObjectContext.
-It is enabled for change-tracking proxies.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A. Modify each mapped property to contain sealed and protected accessors.
B. Configure the navigation property to return a type that implements the ICollection interface.
C. Modify each mapped property to contain non-sealed, public, and virtual accessors.
D. Configure the navigation property to return a type that implements the IEntityWithRelationships interface.
E. Configure the navigation property to return a type that implements the IQueryable interface.

Question 5

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 application uses the ADO.NET Entity
Framework to model entities.
The database includes objects based on the exhibit (click the Exhibit button).
The application includes the following code segment. (Line numbers are included for reference only.)
01 using(AdventureWorksEntities context = new AdventureWorksEntities())
02 {
03 ...
04 foreach (SalesOrderHeader order in customer.SalesOrderHeader)
05 {
06 Console.WriteLine(String.Format("Order: {0} ",
order.SalesOrderNumber));
07 foreach (SalesOrderDetail item in order.SalesOrderDetail)
08 {
09 Console.WriteLine(String.Format("Quantity: {0} ", item.Quantity));
10 Console.WriteLine(String.Format("Product: {0} ",
item.Product.Name));
11 }
12 }
13 }
You want to list all the orders for a specific customer. You need to ensure that the list contains following fields:
-Order number
-Quantity of products
-Product name
Which code segment should you insert in line 03?

A. Contact customer = context.Contact.Where("it.ContactID = @customerId", new ObjectParameter("@customerId", customerId)).First();
B. Contact customer = context.Contact.Where("it.ContactID = @customerId", new ObjectParameter("customerId", customerId)).First();
C. Contact customer = (from contact in context.Contact.Include
("SalesOrderHeader.SalesOrderDetail")
select contact).FirstOrDefault();
D. Contact customer = (from contact in context.Contact.Include
("SalesOrderHeader")
select contact).FirstOrDefault();

Solutions: