A network on the internet has a subnet mask of 255.255.240.0. What is themaximum number of hosts it can handle?
Question
A network on the internet has a subnet mask of 255.255.240.0. What is themaximum number of hosts it can handle?
Solution
The subnet mask 255.255.240.0 corresponds to a /20 prefix, meaning there are 12 bits available for host addresses.
The maximum number of hosts a subnet can support is determined by the number of bits available in the host portion of the address. This is calculated as 2^n - 2, where n is the number of bits in the host portion of the address. The subtraction of 2 accounts for the network address and broadcast address, which cannot be assigned to hosts.
So, for a /20 prefix (which leaves 12 bits for hosts):
2^12 - 2 = 4096 - 2 = 4094
Therefore, a network with a subnet mask of 255.255.240.0 can support a maximum of 4094 hosts.
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