フリー問題

問題文

An audit finds that 2100 of 6000 gateways run settings that differ from the documented standard, in ways nobody can explain. Which capability would have surfaced these differences while they were still few?

選択肢

1. The differences would have surfaced through restricted access limiting the permitted changes.
2. The differences would have surfaced through change tickets recording the requested values.
3. The differences would have surfaced through scheduled reapplication overwriting the observed changes.
4. The differences would have surfaced through periodic readback comparing the intended values.