87.You want to perform an RMAN backup of database as a copy. Which two factors will you consider
while performing the backup operation? (Choose two).
A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database
Answer: AD| Syntax Element | Description |
|---|---|
COPY OF DATABASE |
Makes a backup of previous image copies of all
data files and control files in the database. All data files that would normally be included by BACKUP DATABASE are
expected to have copies: if not, RMAN signals an error. It is not necessary for all copies to have been produced by a single BACKUP command. If multiple copies exist of a data file, then RMAN backs up the latest. Optionally, specify the copies
by tag name (for example,FULL_COLD_COPY).
Note: The output of this command can be image copies or backup sets. |
题意说，使用rman进行数据库的copy，哪两种因素在你进行backup时所考虑的？
A。只能备份到disk
D。数据库里所有使用和未使用的块都会被备份。