フリー問題

問題文

The same target must accept connections from two named servers and refuse the rest. Which statement about the authentication and the access control is correct?

選択肢

1. Plain challenge authentication lets the target check the initiator and an initiator group limits the access down to the reachable initiators
2. Plain challenge authentication lets the target check the network and an initiator group limits the access down to the listed members
3. Plain challenge authentication lets the target check the network and an initiator group limits the access down to the reachable initiators
4. Plain challenge authentication lets the target check the initiator and an initiator group limits the access down to the listed members