单项选择题

Which backup option defines a user-defined name for a backup? （）

A.FORMAT
B.NAME
C.TAG
D.FORMAT U%

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单项选择题

Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower?（）

A.Differential incremental backup
B.Different incremental backup
C.Cumulative backup
D.Cumulative incremental backup

单项选择题

Which of the following best describes a full backup? （）

A.All datafiles of a database
B.All datafiles, archive logs, and control files
C.All datafiles and control files
D.All the used blocks in a datafile

单项选择题

How is block-change tracking enabled?（）

A.With alter database enable block change tracking
B.With alter system enable block change tracking
C.With an init.ora parameter change
D.With an spfile parameter change