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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 create a Windows
Communication Foundation (WCF) Data Services service.
You discover that when an application submits a PUT or DELETE request to the Data Services service, it
receives an error.
You need to ensure that the application can access the service. Which header and request type should you
use in the application?

A. an X-HTTP-Method header as part of a POST request
B. an X-HTTP-Method header as part of a GET request
C. an HTTP ContentType header as part of a GET request
D. an HTTP ContentType header as part of a POST request

Question 2

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.
The application allows users to make changes while disconnected from the data store.
Changes are submitted to the data store by using the SubmitChanges method of the DataContext object.
You receive an exception when you call the SubmitChanges method to submit entities that a user has
changed in offline mode.
You need to ensure that entities changed in offline mode can be successfully updated in the data store.
What should you do?

A. Set the DeferredLoadingEnabled property of DataContext to true.
B. Set the ObjectTrackingEnabled property of DataContext to true.
C. Call the SubmitChanges method of DataContext with a value of System.Data.Linq.ConflictMode.ContinueOnConflict.
D. Call the SaveChanges method of DataContext with a value of false.

Question 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. You write the following code segment. (Line numbers are included for reference only.)
01 public partial class SalesOrderDetail : EntityObject
02 {
03 partial void OnOrderQtyChanging(short value)
04 {
05 ...
06 {
07 ...
08 }
09 }
10 }
You need to find out whether the object has a valid ObjectStateEntry instance. Which code segment should you insert at line 05?

A. if (this.EntityState != EntityState.Modified)
B. if (this.EntityState != EntityState.Detached)
C. if (this.EntityState != EntityState.Added)
D. if (this.EntityState != EntityState.Unchanged)

Question 4

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. You create the classes shown in the following exhibit:

You add the following code segment to the application. (Line numbers are included for reference only.)
01 public void QueryPlayers (List <League> leagues) {
02 ...
03 }
You create a LINQ query to retrieve a collection of Player objects.
You need to ensure that the collection includes all the players from each team and every league. Which
code segment should you insert at line 02?

A. var query = leagues.Select(l => l.Teams.SelectMany(t => t.Players));
B. var query = leagues.SelectMany(l => l.Teams.Select(t => t.Players));
C. var query = leagues.Select(l => l.Teams.Select(t => t.Players));
D. var query = leagues.SelectMany(l => l.Teams.SelectMany(t => t.Players));

Question 5

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 retrieve an entity from an object context.
A different application updates the database. You need to update the entity instance to reflect updated
values in the database.
Which line of code should you use?

A. context.Refresh(RefreshMode.StoreWins, entity);
B. context.LoadProperty(entity, "Client", MergeOption.OverwriteChanges);
C. context.AcceptAllChanges();
D. context.LoadProperty(entity, "Server", MergeOption.OverwriteChanges);

Solutions: