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Which statement correctly describes the change tracking writer （CTWR） background process？（）
A: It keeps track of changes in the background processes.
B: It records the system change number （SCN） in the control file.
C: It writes audit records for user changes to the change tracking file.
D: It records any changes to the listened configuration in the listener.ora file.
E: It records any changes to the database parameters in the change tracking file.
F: It records the physical location of all the changes that are made to the database in the change tracking file.

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出自：Oracle认证

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