多项选择题
A. The user has dropped an important table that needs to be recovered.
B. The database files are corrupted when the database is open.
C. You are not able to start up the database instance because the required database files are missing.
D. The archived log files are missing for which backup is not available.
多项选择题 Whatprivilegesmustbegrantedtoallowanaccounttocreatetherecoverycatalog？（）
单项选择题 You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a big filetablespace of size 100 TB on tape drive, but you have tapedrives of only 10 GB each.Which method would accomplish the task quickly and efficiently?（）
单项选择题 Which statement is true regarding virtual private catalogs?（）