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

2. You have been assigned the task of writing code that executes an Entity SQL query that returns entity type
objects that contain a property of a complex type.
(Line numbers are included for reference only.)
01 using (EntityCommand cmd = conn.CreateCommand())
02 {
03 cmd.CommandText = esqlQuery;
04 EntityParameter param = new EntityParameter();
05 param.ParameterName = "id";
06 param.Value = 3;
07 cmd.Parameters.Add(param);
08 using (EntityDataReader rdr = cmd.ExecuteReader
(CommandBehavior.SequentialAccess))
09 {
10 while (rdr.Read())
11 {
12 ...
13 Console.WriteLine("Email and Phone Info:");
14 for (int i = 0; i < nestedRecord.FieldCount; i++)
15 {
16 Console.WriteLine(" " + nestedRecord.GetName(i) + ": " +
nestedRecord.GetValue(i));
17 }
18 }
19 }
20 }
Which code segment should you insert at line 12?

A) DbDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"]
B) ComplexDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"]
C) DbDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"] as DbDataRecord;
D) DataSet nestedRecord = rdr["EmailPhoneComplexProperty"] as ComplexDataSet

3. 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 to entities while disconnected from the central data store.
You need to ensure that when the user connects to the central data store and retrieves new data, the application meets the following requirements:
-Changes made to the local data store in disconnected mode are preserved.
-Entities that have already been loaded into the local data store, but have not been modified by the user,
are updated with the latest data. What should you do?

A) Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins option.
B) Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option.
C) Call the query's Execute method by using the MergeOptions.AppendOnly option.
D) Call the query's Execute method by using the MergeOptions.OverwriteChanges option.

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a Microsoft ASP.NET
application.
You want to connect the application to a Microsoft SQL Server Express 2008 database named
MyDatabase.
The primary database file is named MyDatabase.mdf and it is stored in the App_Data folder.
You need to define the connection string. Which connection string should you add to the Web.config file?

A) Data Source=.\SQLEXPRESS; Initial Catalog=MyDataBase; Integrated Security=True; User Instance=True
B) Data Source=localhost; Initial Catalog=MyDataBase; Integrated Security=SSPI; User Instance=True
C) Data Source=.\SQLEXPRESS; AttachDbFilename=|DataDirectory|\App_Data\MyDatabase.mdf; Integrated Security=SSPI; User Instance=True
D) Data Source=.\SQLEXPRESS; AttachDbFilename=|DataDirectory|\MyDatabase.mdf; Integrated Security=True; User Instance=True

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a Windows
Communication
Foundation (WCF) Data Services service. You deploy the data service to the following URL: http://
contoso.com/Northwind.svc.
You need to update the City property of the Customer record that has its ID value as 123.
You also need to preserve the current values of the remaining properties. Which HTTP request should you
use?

A) MERGE /Northwind.svc/Customers(123) Host: contoso.com
Content-Type: application/json { City: 'Seattle' }
B) PUT /Northwind.svc/Customers(123) Host: contoso.com Accept: application/json { City: 'Seattle' }
C) MERGE /Northwind.svc/Customers(123) Host: contoso.com Accept: application/json { City: 'Seattle' }
D) PUT /Northwind.svc/Customers(123) Host: contoso.com Content-Type: application/json { City: 'Seattle' }

Solutions: