1. Agriculture occupies an important place in the _________ economy.2. Olympics is the biggest sports _______ in the world.3.I was sad because I felt that the splendid years of my ________ childhood had come to an end.4.The conference might reconvene (重新召开)after its opening ________ .5.The government has promised a/an _______£1 billion for health care.
假设一个主机的IP地址为192.168.5.121,而子网掩码为255.255.255.248,那么该IP地址的网络号为多少?主机号为多少?
A. 192.168.5.120和1
B. 192.168.5.0和121
C. 192.168.5.2和1
D. 192.168.5.64和121
一个公司有10个部门,要求给每个部门划分不同的网段,但是都在192.168.1.0这个大网内,并且每个部门要容纳20台计算机。请为这个公司选择子网掩码。
A. 255.255.255.192
B. 255.255.255.224
C. 臣妾做不到
D. 255.255.255.240
要把网络202.112.78.0划分为多个子网,划分后的子网掩码是255.255.255.192,则各子网中可用的主机地址总数是()。A. B. 128C. 126D. 62
A. 64
B. 128
C. 126
D. 62