A.IP B.ARP C.MAC D.ICMP
A.5M B.200M C.100M D.1000M
A.總線結(jié)構(gòu)B.環(huán)型結(jié)構(gòu)C.星型結(jié)構(gòu)D.網(wǎng)狀結(jié)構(gòu)