Oracle
1Z0-497 · Question #99
Which two statements correctly distinguish between undo and redo data?
The correct answer is A. Undo reverses a change, whereas redo re-creates a change. C. Undo protects against inconsistent reads, whereas redo protects against data loss. See the full explanation below for the reasoning.
Question
Which two statements correctly distinguish between undo and redo data?
Options
- AUndo reverses a change, whereas redo re-creates a change.
- BRedo reverses a change, whereas undo re-creates a change.
- CUndo protects against inconsistent reads, whereas redo protects against data loss.
- DRedo protects against inconsistent reads, whereas undo protects against data loss.
How the community answered
(27 responses)- A70% (19)
- B7% (2)
- D22% (6)
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