Q17. Which two statements are true about the configuration and use of UNDO_RETENTION with no GUATANTEED RETENTION?
- A) UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unexpired UNDO.
- B) UNDO_RETENTION specifies how long all types of UNDO are retained.
- C) Unexpired UNDO is always retained.
- D) Active UNDO is always retained.
- E) UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.
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