单项选择题
设计一个网络时,分配给其中一台主机的IP地址为192.168.1.120,子网掩码为255.255.255.240。则该主机的主机号是 (1) ;可以直接接收该主机广播信息的地址范围是 (2) 。
A.192.168.1.0~192.168.1.255 B.192.168.1.1~192.168.1.254 C.192.168.1.112~192.168.1.127 D.192.168.1.120~192.168.1.127
A.data frames B.segments C.packets D.messages
A.R2、R3、R8 B.Rl、R4、R7 C.Rl、R2、R3、R5、R8 D.R3、R7,R8