EnsurepassQUESTION 121 You want to execute a SQL insert statement from your client application, so you set the CommandText property of the command object and open the connection. Which method will you execute on the command?   ExecuteScalar ExecuteXmlReader ExecuteReader ExecuteNonQuery   Correct Answer: D     QUESTION 122 In ADO.NET, which class can start an explicit transaction to update a SQL Server database?   SqlCommand SqlConnection SqlParameter SqlException Read more [...]