单项选择题

Which dynamic view displays the status of block-change tracking?（）

A.V$BLOCK_CHANGE
B.V$BLOCK_CHANGE_TRACKING
C.V$BLOCKCHANGE
D.V$BLOCK_TRACKING

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单项选择题

A.Unix cp command of a file
B.Bit-by-bit copy of a file
C.Windows COPY command of a file
D.All of the above

单项选择题

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

单项选择题

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