フリー問題

問題文

One schedule copies everything every night and another copies only what changed since the previous run. Which pair states what the full style shortens and what the changed style requires at restore time?

選択肢

1. The documentation for the two backup styles separates both costs, so the full style shortens the whole clone and the changed style needs the whole chain in that review.
2. The documentation for the two backup styles separates both costs, so the full style shortens the whole recovery and the changed style needs the whole disk in that review.
3. The documentation for the two backup styles separates both costs, so the full style shortens the whole clone and the changed style needs the whole disk in that review.
4. The documentation for the two backup styles separates both costs, so the full style shortens the whole recovery and the changed style needs the whole chain in that review.