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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.

A. A maximum of 3 GB can be allocated to shared pool
B. The value for SGA_TARGET can be increased up to a maximum of 15 GB
C. A total of 14 GB memory will be allocated to the automatically tuned memory components.
D. Increasing the value for SGA_TARGET will automatically increase the memory allocated for STREAMS_POOL_SIZE
E. Increasing the value for SGA_TARGET to 12 GB will automatically increase the memory allocated to autotuned parameters
F. Reducing the value for SGA_TARGET to 9 GB will automatically decrease the memory allocated to shared pool from 3 GB to 2 GB