A.兩次成功登錄之間的延遲 B.如果檢測到DoS攻擊,應(yīng)關(guān)閉登錄 C.加密所有密碼 D.為登錄建立系統(tǒng)日志
which address range efficiently summarizes the routing table of the addresses for router main?()
A.172.16.0.0/18 B.172.16.0.0/16 C.172.16.0.0/20 D.172.16.0.0/21
A.Connect a router on a local network. B.Connect a router to another router. C.Allow distribution of routes between networks. D.Translate a private IP address. E.Connect a network to the Internet.