What best describes unicast addresses?

Unicast addresses are specifically designed to identify a single device on a network for the purpose of delivering data. This means that when data is sent to a unicast address, it is directed towards one unique destination device, ensuring that the information reaches only that particular device. This targeted delivery methodology is crucial in many networking scenarios, as it allows for efficient data transmission and minimizes unnecessary traffic on the network.

In contrast, other types of addresses serve different purposes: broadcast addresses send data to all devices in a network simultaneously, while multicast addresses are used for group communication, where data is sent to multiple specified devices rather than a single recipient. Shared network resources refer to scenarios where devices can collectively use common resources such as printers or storage, which does not specifically relate to addressing schemes like unicast, broadcast, and multicast.