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1、Which two are true about the Archive (ARCn) processes?
A) They automatically delete obsolete archive logs to make space for new archive logs.
B) They are used during Instance recovery.
C) They archive redo directly from the redo log buffer.
D) They are enabled only when the database Is In ARCHTVELOC mode.
E) They create archivelogs after every log switch.
Answer:DE
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