单项选择题

Which of the following is a valid way of putting a tablespace named DAVE_TBS into hot backup mode?（）

A.alter tablespace DAVE_TBS backup mode
B.alter tablespace DAVE_TBS start backup
C.alter tablespace DAVE_TBS begin backup
D.alter tablespace DAVE_TBS backup begin
E.alter tablespace DAVE_TBS backup

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单项选择题

Which command will result in a trace file being created with the create controlfile command contained in it?（）

A.alter database backup controlfile
B.alter database backup controlfile to trace
C.alter database controlfile backup
D.alter database controlfile backup to ’/ora01/oracle/ctrl_backup.ctl’
E.alter database begin controlfile backup

单项选择题

hich of the following RMAN structures can data from a datafile span?（）

A.RMAN backup-set pieces spanning backup sets
B.RMAN backup-set pieces within a given backup sets
C.RMAN backups
D.RMAN channels
E.None of the above

单项选择题

You create two resource plans, one for data warehouse loading jobs at night and the other for application jobs at day time. You want the resource plans to activate automatically so that the resource allocation is optimum as desired by the activity.How would you achieve this? （）

A.Implement job classes
B.Implement Scheduler windows
C.Implement the mapping rule for the consumer groups
D.Set the SWITCH_TIME resource plan directive for both the resource plans