单项选择题
A.双绞线 B.同轴电缆 C.光纤 D.微波
A.Telnet B.TCP C.DNS D.HTTP
A.网络接口层 B.表示层 C.传输层 D.应用层
A.显卡 B.CPU C.FLASH D.NVRAM
A.255.0.0.0 B.255.255.0.0 C.255.255.255.0 D.255.255.255.255
A.RIP v2 B.EIGRP C.OSPF D.IGRP
A.A B.B C.C D.D
A.1677216 B.1677214 C.254 D.16382
A.10 B.20 C.30 D.40
A.192.168.2.1 B.10.1.1.1 C.192.168.2.0 D.255.255.255.255
A.地址范围:10.0.0.0—10.255.255.255 B.地址范围:172.16.0.0---172.31.255.555 C.地址范围:192.168.0.0---192.168.255.255 D.类地址范围:192.168.0.0---192.168.0.255