255.255.240.0. Because for 4000 hosts cidr would be /20. 32-20=12 2^12=4096 we need 4000 hosts so 2^4 = 8 subnets
255.255.240.0. Because for 4000 hosts cidr would be /20. 32-20=12 2^12=4096 we need 4000 hosts so 2^4 = 8 subnets
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