Question 21 :
How do you add a data file to a tablespace
Question 22 :
How do you resize a data file?
ALTER DATABASE DATAFILE
Question 23 :
What view would you use to look at the size of a data file?
Question 24 :
What view would you use to determine free space in a tablespace?
Question 25 :
How would you determine who has added a row to a table?
Turn on fine grain auditing for the table.