Which route type would be used directly attached in a configuration?

In the context of network routing, the term "directly attached" refers specifically to routes that are connected to the local device. When a route is labeled as directly attached, it means that the destination network is physically connected to the router or device, and the router knows how to reach this network without needing to consult a routing table or understand a next-hop address.

Using directly attached routes allows a router to quickly forward traffic to the appropriate segment of the network because it can immediately recognize these routes without further processing. This efficiency is particularly important in environments that require rapid data transmission and minimal latency, as the router can directly access the connected interface.

The other options, while connected to routing concepts, do not pertain specifically to the scenario of having a network route that is physically connected to a device in the same manner that directly attached routes do.