An administrator wants to create four subnetworks from the network address 192.168.1.0/24. what is the network address and subnet mask of the second useable subnet?
There is a total of 32 bits in IPv4 address space. In this case we have /24, which means that 24 bits are contained in the network. So, the subnetwork is 192.168.1.64 subnet mask 255.255.255.192
