070-561 Free Dumps Study Materials
Question 19: }
You need to compute the total number of records processed by the Select queries in the RecordCount
variable.
Which code segment should you insert at line 16?
A. myReader = myCommand.ExecuteReader();
RecordCount = myReader.RecordsAffected;
B. while (myReader.Read())
{
//Write logic to process data for the first result.
}
RecordCount = myReader.RecordsAffected;
C. while (myReader.HasRows)
{
while (myReader.Read())
{
//Write logic to process data for the second result.
RecordCount = RecordCount + 1;
myReader.NextResult();
}
}
D. while (myReader.HasRows)
{
while (myReader.Read())
{
//Write logic to process data for the second result.
RecordCount = RecordCount + 1;
}
myReader.NextResult();
}
Correct Answer: D
22. You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET. The
application uses Microsoft SQL Server 2005.
You write the following code segment. (Line numbers are included for reference only.)
01 Dim myConnString As String = _
02 "User ID=<username>;password=<strong password>;" + _
03 "Initial Catalog=pubs;Data Source=myServer"
04 Dim myConnection As New SqlConnection(myConnString)
05 Dim myCommand As New SqlCommand()
06 Dim myReader As DbDataReader
07 myCommand.CommandType = CommandType.Text
08 myCommand.Connection = myConnection
09 myCommand.CommandText = _
10 "Select * from Table1;Select * from Table2;"
11 Dim RecordCount As Integer = 0
12 Try
13 myConnection.Open()
14
15 Catch ex As Exception
16 Finally
17 myConnection.Close()
18 End Try
You need to compute the total number of records processed by the Select queries in the RecordCount
variable.
Which code segment should you insert at line 14?
A. myReader = myCommand.ExecuteReader()
RecordCount = myReader.RecordsAffected
B. While myReader.Read()
'Write logic to process data for the first result.
End While
RecordCount = myReader.RecordsAffected
C. While myReader.HasRows
While myReader.Read()
'Write logic to process data for the second result.
RecordCount = RecordCount + 1
myReader.NextResult()
End While
End While
D. While myReader.HasRows
While myReader.Read()
'Write logic to process data for the second result.
RecordCount = RecordCount + 1
End While
myReader.NextResult()
End While
Correct Answer: D
23. You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application uses data from a Microsoft SQL Server 2005 database table. A Web page of the
application contains a GridView server control.
You write the following code segment. (Line numbers are included for reference only.)
01 private void LoadGrid()
02 {
03 using (SqlCommand command = new SqlCommand())
04 {
05 command.Connection = connection;
06 command.CommandText = "SELECT * FROM Customers";
07 connection.Open();
08
09 }
10 }
You need to retrieve the data from the database table and bind the data to the DataSource property of the
GridView server control.
Which code segment should you insert at line 08?
A. SqlDataReader rdr = command.ExecuteReader();
connection.Close();
GridView1.DataSource = rdr;
GridView1.DataBind();
B. SqlDataReader rdr = command.ExecuteReader();
GridView1.DataSource = rdr.Read();
GridView1.DataBind();
connection.Close();
C. SqlDataReader rdr = command.ExecuteReader();
Object[] values = new Object[rdr.FieldCount];
GridView1.DataSource = rdr.GetValues(values);
GridView1.DataBind();
connection.Close();
D. DataTable dt = new DataTable();
using (SqlDataReader reader = command.ExecuteReader())
{
dt.Load(reader);
}
connection.Close();
GridView1.DataSource = dt;
GridView1.DataBind();
Correct Answer: D
24. You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application uses data from a Microsoft SQL Server 2005 database table. A Web page of the
application contains a GridView server control.
You write the following code segment. (Line numbers are included for reference only.)
01 Private Sub LoadGrid()
02 Using command As New SqlCommand()
03 command.Connection = connection
04 command.CommandText = "SELECT * FROM Customers"
05 connection.Open()
06
07 End Using
08 End Sub
You need to retrieve the data from the database table and bind the data to the DataSource property of the
GridView server control.
Which code segment should you insert at line 06?
A. Dim rdr As SqlDataReader = command.ExecuteReader()
connection.Close()
GridView1.DataSource = rdr
GridView1.DataBind()
B. Dim rdr As SqlDataReader = command.ExecuteReader()
GridView1.DataSource = rdr.Read()
GridView1.DataBind()
connection.Close()
C. Dim rdr As SqlDataReader = command.ExecuteReader()
Dim values As Object() = New Object(rdr.FieldCount - 1) {}
GridView1.DataSource = rdr.GetValues(values)
GridView1.DataBind()
D. Dim dt As New DataTable()
Using reader As SqlDataReader = command.ExecuteReader()
dt.Load(reader)
End Using
connection.Close()
GridView1.DataSource = dt
GridView1.DataBind()
Correct Answer: D