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

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a Windows
Communication Foundation (WCF) Data Services service.
The service connects to a Microsoft SQL Server 2008 database. The service is hosted by an Internet
Information Services (IIS) 6.0 server.
You need to ensure that applications authenticate against user information stored in the database before
the application is allowed to use the service.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Configure IIS to allow anonymous access.
B) Configure IIS to require Windows authentication.
C) Enable the WCF Authentication Service.
D) Configure IIS to require basic authentication.
E) Modify the Data Services service to use a Microsoft ASP.NET membership provider.

3. Which one of these samples it the correct way to close the connection using Command Behavior?

A) SqlDataReader rdr = new SqlDataReader(); string sql = @"sql statement"; SqlConnection conn = connection.GetConnection(); SqlCommand cmd = new SqlCommand(sql, conn); SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection); rdr.Close(); Console.WriteLine("{0}", rdr);
B) using (SqlDataReader rdr = new SqlDataReader())
{
string sql = @"sql statement";
SqlConnection conn = connection.GetConnection();
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
Console.WriteLine("{0}", rdr);
}
C) SqlDataReader rdr = new SqlDataReader(); string sql = @"sql statement"; SqlConnection conn = connection.GetConnection(); SqlCommand cmd = new SqlCommand(sql, conn); SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection); Console.WriteLine("{0}", rdr);
D) SqlDataReader rdr = new SqlDataReader(); string sql = @"sql statement"; SqlConnection conn = connection.GetConnection(); SqlCommand cmd = new SqlCommand(sql, conn); SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection); conn.Close(); Console.WriteLine("{0}", rdr);

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that
uses the Entity Framework.
Entity types in the model are generated by the Entity Data Model generator tool (EdmGen.exe).
You write the following code. (Line numbers are included for reference only.)
01 MemoryStream stream = new MemoryStream();
02 var query = context.Contacts.Include("SalesOrderHeaders.SalesOrderDetails");
03 var contact = query.Where("it.LastName = @lastname", new ObjectParameter
("lastname", lastName)).First();
04 ....
You need to serialize the contact and all of its related objects to the MemoryStream so that the contact can
be deserialized back into the model.
Which code segment should you insert at line 04?

A) var formatter = new SoapFormatter(); formatter.Serialize(stream, contact);
B) var formatter = new XmlSerializer(typeof(Contact)); formatter.Serialize(stream, contact);
C) var formatter = new BinaryFormatter(); formatter.Serialize(stream, contact);
D) var formatter = new XmlSerializer(typeof(Contact), new Type[] { typeof(SalesOrderHeader), typeof(SalesOrderDetail)
});
formatter.Serialize(stream, contact);

5. 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; AttachDbFilename=|DataDirectory|\MyDatabase.mdf; 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; Initial Catalog=MyDataBase; Integrated Security=True; User Instance=True

Solutions: