【多选题】
A It gets backed up automatically by RMAN when the BACKUP SPFILE command isused
B It gets backed up automatically by RMAN as a trace file containing SQL statements for controlfile re-creation when a database backup occurs
C It can get backed up automatically as a binary copy
D It can be backed up manually as a binary copy.
E It cannot be backed up manually as a binary copy.
F It can be backed up manually as a trace file containing SQL statements for control file recreation
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