多项选择题

Which of the following files cannot be backed up by RMAN? （）(Choose all that apply.）

A. Database datafiles
B. Control files
C. Online redo logs
D. Database pfiles
E. Archived redo logs

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单项选择题

What command would you issue to enable automated backups of control files？（）

A. alter database controlfile autobackup on
B. alter system controlfile autobackup on
C. configure controlfile autobackup on
D. enable controlfile autobackup

多项选择题

Which is the correct way to connect to both the target database and the recovery catalog from the RMAN command line？（）
Assume that the target database is called ORCL and that the recovery catalog database is called RCAT. Also assume that the recovery-catalog owner is called RCAT_OWN. Assume the environment is configured for the ORCL database.

A. rman target=/ catalog=/@rcat
B. rman target=/ catalog=rcat_own/rcat_own
C. rman target=/ catalog=rcat_own/rcat_own@RCAT
D. rman target=sys/robert@orcl catalog=rcat_own/rcat_own@RCAT
E. You cannot connect to the target database and the recovery catalog at the same time.

单项选择题

How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has alreadycompleted?（）

A. Issue the ALTER DISKGROUP ... ADD DISK command.
B. Issue the ALTER DISKGROUP ... UNDROP DISKS command.
C. Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.
D. Retrieve the disk from the Recycle Bin after the operation completes