フリー問題

問題文

A change was committed by mistake and the operator wants the whole network returned to the state of an earlier commit. Which role does that facility serve?

選択肢

1. That facility provides retained revision restoring across the wider blueprint implementation.
2. That facility provides node difference listing across the wider blueprint implementation.
3. That facility provides blueprint locking duty across the wider blueprint implementation.
4. That facility provides lock override permission across the wider blueprint implementation.