フリー問題

問題文

A responder asks whether containment can be applied to a host that has not connected for two days. What should the administrator say?

選択肢

1. The instruction cannot be issued at all, because the console refuses actions against hosts whose sensors have not reported recently and the host has to be brought online first.
2. The instruction takes effect immediately, because containment is enforced by the network rather than by the sensor.
3. The instruction can be issued, but it only takes effect when the host next connects.
4. The host is already effectively contained, because it is not communicating with anything else at the moment.