A.10.0.0.0-10.255.255.255 B.172.16.0.0-172.31.255.255 C.172.16.0.0-172.47.255.255 D.192.168.0.0-192.168.255.255
A.基于端口劃分 B.基于MAC劃分 C.基于協(xié)議劃分 D.基于IP子網(wǎng)劃分
A、ACCESS B、TRUNK C、HYBRID D、FORWARDING