In the subnet `172.16.30.0/24`, `172.16.30.255` is the broadcast address and cannot be assigned to an ordinary host.

### Why this is right A `/24` subnet has eight address bits that vary. The highest value for those bits is 255, making `172.16.30.255` the final address in this block. The provided material identifies the final address as the broadcast address, used to send traffic to all devices on that subnet. ### The concept A subnet's network address identifies the block itself, while its broadcast address is used to reach all devices in that subnet. In this example, the network address is `172.16.30.0` and the broadcast address is `172.16.30.255`. Ordinary host addressing uses the addresses between them, from `.1` to `.254`. This distinction helps prevent assigning special subnet addresses to devices. ### Terms - **Subnet**: A logical network made from a defined range of IP addresses. - **Network address**: The first address in a subnet, identifying the subnet rather than an individual host. - **Broadcast address**: The last address in a conventional subnet, used to reach all devices on that subnet. - **Host**: A device that sends or receives network traffic. ### Remember For the given conventional `/24`, `.0` identifies the network and `.255` is its broadcast address.