多项选择题 Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)

单项选择题 YouareusingRMANtobackupyourARCHIVELOGmodedatabase.Youhaveenabledcontrol-fileautobackups.WhichfilesarenotbackedupduringtheRMANbackup？（）

单项选择题 You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）