You are creating a DataTable. You use the following code segment to create the DataTable. (Line numbers are included for reference only.)
01 DataTable dt = new DataTable("Products"); 02 dt.Columns.Add(new DataColumn("Price", typeof(decimal))); 03 dt.Columns.Add(new DataColumn("Quantity", typeof(Int32))); 04 DataColumn dc = new DataColumn("Total", typeof(decimal)); 05 dt.Columns.Add(dc);
You need to ensure that the Total column is set to the value of the Price column multiplied by the Quantity column when new rows are added or changed.
What should you do?

• A. Add the following code segment after line 05. dc.Expression = "Price * Quantity";
• B. Write an event handler for the DataTable's ColumnChanged event that updates the row's Total.
• C. Add the following code segment after line 05. dc.ExtendedProperties["Total"] = "Price * Quantity";
• D. Write an event handler for the DataTable's TableNewRow event that updates the row's Total.

You are creating a Microsoft ASP.NET application.
The application provides a Web portal to purchase tickets online. Many device types will browse the portal.
The portal includes a Web Form that contains a label named Lbl_Edition.
The Web Form contains the following code segment. (Line numbers are included for reference only.)
01 if
02 (
04 )
05 {
06 Lbl_Edition.Text = "Mobile Edition";
07 }
08 else
09 {
10 Lbl_Edition.Text = "Desktop Edition";
11 }
You need to ensure that Lbl_Edition displays the correct edition for the device type.
Which line of code should you insert at line 03?

• A. Request.RequestType == "IsMobileDevice"
• B. Request.HttpMethod == "WML"
• C. Request.Browser.IsMobileDevice == true
• D. Request.Browser.PreferredResponseEncoding == "WML"

You create a Web server control named ContosoControls. You add a Web custom control named ContosoMailer to it. You then distribute the Web Control Library files to your team.
You need to provide your team with the correct procedure for adding the Web Control Library to the items in the toolbox of Microsoft Visual Studio .NET.
Which procedure should you provide to the team?

• A. Within the toolbox, click Choose Items and then browse to and select the ContosoMailer user control.
• B. Within the toolbox, click Choose Items and then browse to and select the ContosoControls user control.
• C. Within the toolbox, click Choose Items and then browse to and select the ContosoControls.dll file.
• D. Right-click Web Project, click Add Reference, and then browse to and select the ContosoControls.dll file.

You are creating a Microsoft ASP.NET Web application that allows customers to transfer money between their bank accounts.
You write the following code segment. (Line numbers are included for reference only.)
01 Using cn As New SqlConnection()
02 cn.ConnectionString = strConnString
03 cn.Open()
04 Using tran As SqlTransaction = cn.BeginTransaction()
05 Try
07 Catch xcp As Exception
08 lblMessage.Text = xcp.Message
09 tran.Rollback()
10 End Try
11 End Using
12 End Using
You need to ensure that the transfer operation executes within a transaction.
Which code segment should you insert at line 06?

• A. Using cmd As SqlCommand = cn.CreateCommand() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal " & Xfer & " WHERE Acct = ") + Acct1 cmd.ExecuteNonQuery() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal + " & Xfer & " WHERE Acct = ") + Acct2 cmd.ExecuteNonQuery() End Using
• B. Using cmd As SqlCommand = cn.CreateCommand() cmd.Transaction = tran cmd.CommandText = ("UPDATE Accounts SET Bal = Bal " & Xfer & " WHERE Acct = ") + Acct1 cmd.ExecuteNonQuery() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal + " & Xfer & " WHERE Acct = ") + Acct2 cmd.ExecuteNonQuery() End Using
• C. Using cmd As SqlCommand = cn.CreateCommand() cmd.Transaction = tran cmd.CommandText = ("UPDATE Accounts SET Bal = Bal " & Xfer & " WHERE Acct = ") + Acct1 cmd.ExecuteNonQuery() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal + " & Xfer & " WHERE Acct = ") + Acct2 cmd.ExecuteNonQuery() End Using tran.Commit()
• D. Using cmd As SqlCommand = cn.CreateCommand() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal " & Xfer & " WHERE Acct = ") + Acct1 cmd.ExecuteNonQuery() cmd.CommandText = ("UPDATE Accounts SET Bal = Bal + " & Xfer & " WHERE Acct = ") + Acct2 cmd.ExecuteNonQuery() End Using tran.Commit()

Your Microsoft ASP.NET Web site is on a hosted server. You have only File Transfer Protocol (FTP)
access to the hosted server.
You create a new version of the Web site.
You need to deploy the new version to the hosted server.
What should you do?

• A. Use the aspnet_compiler command-line tool.
• B. Use XCOPY deployment.
• C. Use the Copy Web Site tool.
• D. Use a Web setup project.