Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question
A /28 is a 255.255.255.240 mask. We need to count to the eighth subnet, not starting at subnet-zero. 16, 32, 48, 64, 80, 96, 112, 128. The ninth subnet is 144 (we need this to help us find the 128 subnet broadcast address, which is 143).The valid host range for the eight subnet (not using subnet zero) is 129 through 142. The last available IP address available in the eighth subnet is 142.