83. You are using Enterprise Manager to schedule backups for your database. Which type of script would be generated by the backup scheduler? A.XML script B.PL/SQL script C.Operating system script

141. Which tablespaces are mandatory in an Oracle database for it to be operational? (Choose all that 强制性 apply.) A.Undo tablespace B.USERS tablespace C.SYSAUX tablespace D.SYSTEM tablespace E.T