Final answer:
The network topology in which a central node is connected to two or more subordinate nodes, which are then connected to other subordinate nodes, is known as a Tree topology.
Step-by-step explanation:
The network topology described in the student's question is known as a Tree topology. In a tree network topology, a central 'root' node is linked to one or more intermediary nodes, which are, in turn, connected to subordinate or 'leaf' nodes, creating a hierarchy of nodes that resembles a tree structure. This kind of topology combines characteristics of both star and bus topologies, where each branch off the main 'trunk' of the network can be seen as a star configuration that is connected in a bus-like layout.