单项选择题
Which statement is true regarding RMAN components？（）
A.Each target database requires its own recover catalog.
B.RMAN scripts can be stored in the recovery catalog or the target control file.
C.A channel is a stream of data to a device type and corresponds to one server session.
D.The RMAN executable interprets sever session commands and establishes connections to the target database.
相关考题
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单项选择题
You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）
A.A text copy of the control file.
B.A binary copy of the control file.
C.A file containing a SQL statement which will re-create the database.
D.A file containing a SQL statement which will re-create the control file. -
单项选择题
Whichstatementistrueregardingcheckpointsandrecovery？（）
A.A checkpoint defines the highest system change number （SCN）.
B.All redo entries higher or at the SCN are known to be written to the data files.
C.Only the redo records containing SCNs higher then the checkpoint need to be applied during recovery.
D.The LOG_CHECKPOINT_INTERVAL initialization parameter specifies the amount of time between incremental checkpoints. -
单项选择题
Inuser-managedbackupandrecoverprocedures，howaredatafilesbackedup？（）
A.Using SQL commands.
B.Using SQL*Plus commands.
C.Using operating system commands.
D.Using Recover Manager commands.
