How Many Usable Hosts are Available in a /22 Network?
Question
You have been allocated a /22 network.
How many usable hosts are available?
Answers
Explanations
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A. B. C. D.C
A /22 network is a Classless Inter-Domain Routing (CIDR) notation that refers to a network that has a subnet mask of 255.255.252.0, which means that there are 22 bits dedicated to the network portion of the address and 10 bits dedicated to the host portion of the address.
To calculate the number of usable hosts in a /22 network, you first need to determine the total number of IP addresses in the network. This can be calculated using the formula:
2^(32-n) - 2
Where n is the number of bits dedicated to the host portion of the address (in this case, 10). The -2 at the end of the formula represents the network address and broadcast address, which cannot be assigned to hosts.
Plugging in the numbers:
2^(32-10) - 2 = 1024 - 2 = 1022
Therefore, the answer is C) 1022 usable hosts.
