Files can be lost or destroyed accidentally. Keep ( ) copies of all data on removable storage media.
选项:
A:
backup
B:
back
C:
black
D:
backdown
backup
back
black
backdown
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RMAN> BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG WEEKLY DATABASE;
Which statement is true about the execution of the command?
选项: A:It returns an error because there is no level 0 backup available for new data files.
B:It performs an image copy backup of new data files, and a level 1 incremental backup of all other data files.
C:It performs a level-0 backup of all data files including those that belong to the new tablespace.
D:It performs an image copy backup of all data files including those that belong to the new tablespace
E:It performs a backup as a backup set of all data files including those that belong to the new tablespace.
management
B:storage
C:analysis
D:communication
Storage location
B:Data source
C:Performance
D:Data refresh
It primarily increases computational power
B:It enhances data retrieval speeds
C:It provides better storage utilization and flexibility
D:It reduces the need for system monitoring
Computer____is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.
选项: A:storage
B:device
C:network
D:processor