What is the total number of hosts in a subnet with a /18 subnet mask?

What is the total number of hosts in a subnet with a /18 subnet mask?

Step 1: Understand what a /18 subnet mask means. The '/18' indicates that the first 18 bits of the IP address are used for the network part.
Step 2: Know that an IP address is 32 bits long in total.
Step 3: Calculate the number of bits available for hosts by subtracting the network bits from the total bits: 32 - 18 = 14 bits.
Step 4: Use the formula 2^(number of host bits) to find the total number of addresses. Here, it is 2^14.
Step 5: Calculate 2^14, which equals 16384 total addresses in the subnet.
Step 6: Remember that in each subnet, 2 addresses are reserved: one for the network address and one for the broadcast address.
Step 7: Subtract the 2 reserved addresses from the total addresses: 16384 - 2 = 16382 usable addresses for hosts.

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