ขอบคุณคับ
Example 1: 192.168.1.0/25 -> ? subnets
-> 20 hosts/subnet
Solution: subnet mask /25 = 255.255.255.10000000
20 hosts/subnet; host id = 5 -> 11100000 -> /27
subnet mask = 255.255.255.224
subnets bit = 2 -> 4 subnets
subnet#1
192.168.1.0/27
host address = 192.168.1.1 - 192.168.1.30
broadcast address = 192.168.1.31
subnet#2
192.168.1.0+32/27 ...
Answer: 4 subnets
