某公司申请到一个C类网络，由于有地理位置上的考虑必须切割成5个子网，请问子网掩码要设为（ ）。
A: 255. 255. 255. 254
B: 255. 285. 255. 240
C: 255. 255. 255. 224
D: 255. 255. 255. 192
A: 255. 255. 255. 254
B: 255. 285. 255. 240
C: 255. 255. 255. 224
D: 255. 255. 255. 192
举一反三
- IP地址255. 255. 255. 255称为，用于
- 【单选题】A 类IP地址网络的子网掩码地址为 A. 255. 255. 255. 255 B. 255. 0. 0. 0 C. 255. 255. 255. 0 D. 255. 255. 0. 0
- 标准B类地址的子网掩码是。() A: 255. 0. 0.0 B: 255. 255. 0.0 C: 255. 255. 255.0 D: 255. 255. 255.255
- The manager of the bank where you work tells you that your bank has $5 million in excess reserves. She also tells you that the bank has $300 million in deposits and $255 million dollars in loans. Given this information you find that the reserve requirement must be A: 50/255. B: 40/255. C: 50/300. D: 40/300.
- 主机的IP地址是165. 95. 116. 39，对应的子网掩码为255. 255. 0. 0，那么主机标识是.