A.10 B.20 C.30 D.40
A.1677216B.1677214C.16384D.16382
A.255.255.240.0 B.173.26.68.0 C.173.26.0.0 D.173.0.0.0
A. B. C. D.
A.直连路由 B.静态路由 C.动态路由 D.默认路由
A.安全策略 B.安全威胁 C.安全服务 D.安全能力
A.FF:FF:FF:FF:FF:FF B.255.255.255.255 C.255.255.255.0 D.1023
A.应用层 B.网络层 C.传输层 D.物理层
A.173.0.0.0 B.173.18.0.0 C.173.18.8.0 D.173.18.8.1