A.Adapter with AUI connector B.Adapter with BNC connector C.Adapter with RJ-45 connector D.Adapter with DB-25 connector
A.Class A B.Class B C.Class C D.Class D
A.network 10.0.0.0 B.network 127.0.0.0 C.network 129.135.0.0 D.network 192.168.0.0