某主机的IP地址为10.100.100.01/20,其子网掩码是(70)。
A.255.255.248.0
B.255.255.252.0
C.255.255.240.0
D.255.255.255.0
A.255.255.248.0
B.255.255.252.0
C.255.255.240.0
D.255.255.255.0
某主机的IP地址为202.113.25.55,子网掩码为255.255.255.240。该主机的有限广播地址为
A.202.113.25.255
B.202.113.25.240
C.255.255.255.55
D.255.255.255.255
A.192.168.1.100
B.192.0.0.0
C.192.168.1
D.192.168.0
某主机的IP地址为202.113.25.55,子网掩码为255.255.255.240。该主机的有限广播地址为 ______。
A.202.113.25.255
B.202.113.25.240
C.255.255.255.55
D.255.255.255.255
A.202.113.255
B.255.255.255.255
C. 255.255.255.55
D.127.0.0.1
某主机的IP地址为10.100.100.01/20,其子网掩码是______。
A.255.255.248.0
B.255.255.252.0
C.255.255.240.0
D.255.255.255.0
A.172.16.7.255
B.172.16.7.127
C.172.16.255.255
D.172.16.7.191
A.255.255.255.255
B.250.110.25.0
C.255.111.255.25
D.250.110.25.255
下列说法错误的是(28)。
A.网络中某台主机的IP地址是唯一的
B.网络中某台主机的IP地址每位不能全部为1,这个地址是TCP/IP的广播地址
C.网络中某台主机的IP地址每位不能全部为0,这个地址是TCP/IP的广播地址
D.B类网络默认的子网掩码为255.255.0.0
A.255.255.248.0
B.255.255.252.0
C.255.255.240.0
D.255.255.255.0
A.255.255.248.0
B.255.255.240.0
C.255.255.252.0
D.255.255.255.0