Multiple choice technology programming languages Which of the following are the valid method of command object ExecuteNonQuery & ExecuteScalar ExecuteQuery & ExecuteScalar ExecuteParameter None of the above Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Command object in ADO.NET has ExecuteNonQuery for INSERT/UPDATE/DELETE (returns affected rows), ExecuteScalar for single value queries, and ExecuteReader for multiple rows. ExecuteQuery and ExecuteParameter are not valid methods.