Which of the following statements is true about a broadcast address?

The statement that a broadcast address is the highest address in a subnet is accurate. In networking, a broadcast address is defined as the last address in a given subnet, and it is used to send data to all devices on that subnet simultaneously. For example, in an IPv4 addressing scheme, if a subnet has a range of addresses from 192.168.1.0 to 192.168.1.255, the address 192.168.1.255 is reserved as the broadcast address for that subnet. When a message is sent to this address, all devices within that subnet can receive and process that broadcast message.

This property is essential for various network operations, including service announcements, discovering network services, and other functions where a message needs to be sent broadly to all hosts without specifying each one individually. Understanding this is vital for managing and configuring networks effectively.