A.255.255.250.0
B.255.255.252.0
C.255.255.254.0
D.255.255.255.0
A.
B.
C.
D.
[单选题] 某主机的 IP地址为 202.100.1.254/22,其子网掩码是 (28) 。(28)A. 255.255.250.0B. 255.255.252.0C. 255.255.254.0D. 255.255.255.0
[单选题]某主机的IP地址为202.100.1.254/22,其子网掩码是(28)。A.255.255.250.0B.255.255.252.0C.255.255.254.0D.255.255.255.0
[单选题]某主机的IP地址为200.15.13.12/22,其子网掩码是( )。A.255.255.248.OB.255.255.240.OC.255.255.252.OD..255.255.255.0
[单选题]某主机的IP地址为200.15.13.12/22,其子网掩码是()。A . 255.255.248.0B . 255.255.240.0C . 255.255.252.0D . 255.255.255.0
[单选题] 某主机的IP地址为200.15.13.12/22,其子网掩码是 (66) 。(66)A. 255.255.248.0B. 255.255.240.0C. 255.255.252.0D. 255.255.255.0
[单选题] 某主机的IP地址为200.15.13.12/22,其子网掩码是 (30) 。(30)A. 255.255.248.0B. 255.255.240.0C. 255.255.252.0D. 255.255.255.0
[单选题] 某主机的IP地址为200.15.13.12/22,其子网掩码是 (66) 。(66)A. 255.255.248.0 B. 255.255.240.0 C. 255.255.252.0 D. 255.255.255.0
[单选题] 某主机的IP地址为200.15.13.12/22,其子网掩码是 (30) 。(30)A. 255.255.248.0 B. 255.255.240.0 C. 255.255.252.0 D. 255.255.255.0
[单选题]某主机的IP地址为200.15.13.12/22,其子网掩码是(30)。A.255.255.248.0B.255.255.240.0C.255.255.252.0D.255.255.255.0
[单选题]某主机的IP地址为202.117.131.12/20,其子网掩码是______。A.255.255.248.0B.255.255.240.0C.255.255.252.0D.255.255.255.0A.B.C.D.