How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?
- 510
- 512
- 1022
- 1024
- 2046
- 2048
Explanation: A mask of 255.255.252.0 is equal to a prefix of /22. A /22 prefix provides 22 bits for the network portion and leaves 10 bits for the host portion. The 10 bits in the host portion will provide 1022 usable IP addresses (210 – 2 = 1022).