單項(xiàng)選擇題

You want to make sure that your database backup does not exceed 10 hours in length. What command would you issue that would meet this condition?（）

A.backup database plus archivelog
B.backup database plus archivlog until time ‘10:00‘
C.backup database plus archivelog timeout ‘10:00‘
D.backup database plus archivelog duration 10:00

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單項(xiàng)選擇題

ou have backed up your database twice without connecting to the recovery catalog. What command do you issue to transfer the control-file metadata to the recovery catalog? （）

A.synch catalog
B.resync catalog
C.replicate catalog
D.update catalog
E.restore catalog

單項(xiàng)選擇題

Which command would you use to determine what database backups are currently available for restore?（）

A.list database backup
B.report database backup
C.list backup of database
D.list summary backup
E.report backup of database