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Code d'Examen: 070-482
Nom d'Examen: Microsoft (Advanced Windows Store App Dev using HTML5 and JavaScript)
Questions et réponses: 70 Q&As
Code d'Examen: 70-561-VB
Nom d'Examen: Microsoft (TS: MS .NET Framework 3.5, ADO.NET Application Development)
Questions et réponses: 99 Q&As
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NO.1 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET. The
application connects to a Microsoft SQL Server 2005 database.
You write the following code segment. (Line numbers are included for reference only.)
01 Using connection As New SqlConnection(connectionString)
02 Dim cmd As New SqlCommand(queryString, connection)
03 connection.Open()
04
05 While sdrdr.Read()
06 ' use the data in the reader
07 End While
08 End Using
You need to ensure that the memory is used efficiently when retrieving BLOBs from the database.
Which code segment should you insert at line 04?
A. Dim sdrdr As SqlDataReader = _
cmd.ExecuteReader()
B. Dim sdrdr As SqlDataReader = _
cmd.ExecuteReader(CommandBehavior.[Default])
C. Dim sdrdr As SqlDataReader = _
cmd.ExecuteReader(CommandBehavior.SchemaOnly)
D. Dim sdrdr As SqlDataReader = _
cmd.ExecuteReader(CommandBehavior.SequentialAccess)
Answer: D
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NO.2 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET. The
application connects to a Microsoft SQL Server 2005 database.
You write the following code segment.
Dim queryString As String = "Select Name, Age from dbo.Table_1"
Dim command As New _
SqlCommand(queryString, DirectCast(connection, SqlConnection))
You need to get the value that is contained in the first column of the first row of the result set returned by
the query.
Which code segment should you use?
A. Dim value As Object = command.ExecuteScalar()
Dim requiredValue As String = value.ToString()
B. Dim value As Integer = command.ExecuteNonQuery()
Dim requiredValue As String = value.ToString()
C. Dim value As SqlDataReader = _
command.ExecuteReader(CommandBehavior.SingleRow)
Dim requiredValue As String = value(0).ToString()
D. Dim value As SqlDataReader = _
command.ExecuteReader(CommandBehavior.SingleRow)
Dim requiredValue As String = value(1).ToString()
Answer: A
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NO.3 End Using
NO.4 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application has a DataTable object named OrderDetailTable. The object has the following columns:
H ID
H OrderID
H ProductID
H Quantity
H LineTotal
The OrderDetailTable object is populated with data provided by a business partner. Some of the records
contain a null value in the LineTotal field and 0 in the Quantity field.
You write the following code segment. (Line numbers are included for reference only.)
01 Dim col As New DataColumn("UnitPrice", GetType(Decimal))
02
03 OrderDetailTable.Columns.Add(col)
You need to add a DataColumn named UnitPrice to the OrderDetailTable object.
Which line of code should you insert at line 02?
A. col.Expression = "LineTotal/Quantity"
B. col.Expression = "LineTotal/ISNULL(Quantity, 1)"
C. col.Expression = "LineTotal.Value/ISNULL(Quantity.Value, 1)"
D. col.Expression = "iif(Quantity > 0, LineTotal/Quantity, 0)"
Answer: D
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NO.5 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application contains a TextBox control named txtProductID. The application will return a list of active
products that have the ProductID field equal to the txtProductID.Text property.
You write the following code segment. (Line numbers are included for reference only.)
01 Private Function GetProducts(ByVal cn _
As SqlConnection) As DataSet
02 Dim cmd As New SqlCommand()
03 cmd.Connection = cn
04 Dim da As New SqlDataAdapter(cmd)
05 Dim ds As New DataSet()
06
07 da.Fill(ds)
08 Return ds
09 End Function
You need to populate the DataSet object with product records while avoiding possible SQL injection
attacks.
Which code segment should you insert at line 06?
A. cmd.CommandText = _
String.Format("sp_sqlexec 'SELECT ProductID, " + _
"Name FROM Product WHERE ProductID={0} AND IsActive=1'", _
txtProductID.Text)
B. cmd.CommandText = _
String.Format("SELECT ProductID, " + _
"Name FROM Product WHERE ProductID={0} AND IsActive=1", _
txtProductID.Text)
cmd.Prepare()
C. cmd.CommandText = _
String.Format("SELECT ProductID, " + _
"Name FROM Product WHERE ProductID={0} AND IsActive=1", _
txtProductID.Text)
cmd.CommandType = CommandType.TableDirect
D. cmd.CommandText = "SELECT ProductID, " + _
"Name FROM Product WHERE ProductID=@productID AND IsActive=1"
cmd.Parameters.AddWithValue("@productID", txtProductID.Text)
Answer: D
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NO.6 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
You need to ensure that the application can connect to any type of database.
What should you do?
A. Set the database driver name in the connection string of the application, and then create the
connection object in the following manner.
Dim connection As DbConnection = _
New OdbcConnection(connectionString)
B. Set the database provider name in the connection string of the application, and then create the
connection object in the following manner.
Dim connection As DbConnection = _
New OleDbConnection(connectionString)
C. Create the connection object in the following manner.
Dim factory As DbProviderFactory = _
DbProviderFactories.GetFactory("System.Data.Odbc")
Dim connection As DbConnection = _
factory.CreateConnection()
D. Create the connection object in the following manner.
Dim factory As DbProviderFactory = _
DbProviderFactories.GetFactory(databaseProviderName)
Dim connection As DbConnection = factory.CreateConnection()
Answer: D
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NO.7 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application contains a DataSet object named orderDS. The object contains a table named Order as
shown in the following exhibit.
The application uses a SqlDataAdapter object named daOrder to populate the Order table.
You write the following code segment. (Line numbers are included for reference only.)
01 Private Sub FillOrderTable(ByVal pageIndex As Integer)
02 Dim pageSize As Integer = 5
03
04 End Sub
You need to fill the Order table with the next set of 5 records for each increase in the pageIndex value.
Which code segment should you insert at line 03?
A. Dim sql As String = "SELECT SalesOrderID, CustomerID, " + _
"OrderDate FROM Sales.SalesOrderHeader"
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, pageIndex, pageSize, "Order")
B. Dim startRecord As Integer = (pageIndex - 1) * pageSize
Dim sql As String = "SELECT SalesOrderID, CustomerID, " + _
"OrderDate FROM Sales.SalesOrderHeader"
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, startRecord, pageSize, "Order")
C. Dim sql As String = _
String.Format("SELECT TOP {0} SalesOrderID, " + _
"CustomerID, OrderDate FROM Sales.SalesOrderHeader " + _
"WHERE SalesOrderID > {1}", pageSize, pageIndex)
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, "Order")
D. Dim startRecord As Integer = (pageIndex - 1) * pageSize
Dim sql As String = _
String.Format("SELECT TOP {0} SalesOrderID, " + _
"CustomerID, OrderDate FROM Sales.SalesOrderHeader " + _
"WHERE SalesOrderID > {1}", pageSize, startRecord)
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, "Order")
Answer: B
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NO.8 You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET. The
application connects to a Microsoft SQL Server 2005 database.
The application throws an exception when the SQL Connection object is used.
You need to handle the exception.
Which code segment should you use?
A. Try
If conn IsNot Nothing Then
conn.Close()
' code for the query
End If
Catch ex As Exception
' handle exception
Finally
If conn Is Nothing Then
conn.Open()
End If
End Try
B. Try
' code for the query
conn.Close()
Catch ex As Exception
' handle exception
Finally
If conn IsNot Nothing Then
conn.Open()
End If
End Try
C. Try
' code for the query
conn.Open()
Catch ex As Exception
' handle exception
Finally
If conn IsNot Nothing Then
conn.Close()
End If
End Try
D. Try
' code for the query
conn.Open()
Catch ex As Exception
' handle exception
Finally
If conn Is Nothing Then
conn.Close()
End If
End Try
Answer: C
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