Multiple choice Which of the following statments is true about alerts? A maximum of one undo alert is received per every 12-hour period. A maximum of one undo alert is received during a 24-hour period. A maximum of one tablespace alert is received during a 124-hour period. A maximum of one tablespace alert is received during a 24-hour period. Reveal answer Fill a bubble to check yourself B Correct answer Explanation A maximum of one undo alert is received during a 24-hour period.