It seems you are referring to a topology, but the figure is not visible here. Based on your description, I can help explain each topology:
Circular Topology: This could refer to a network where each device is connected in a closed loop, meaning the first device is connected to the last device.
Star Topology: In this topology, all devices are connected to a central hub or switch, making the network resemble a star shape.
Hierarchical Topology: This is a tree-like structure where networks are arranged in a parent-child fashion, creating a hierarchy of nodes.
Network Topology: This term is a generic description of how devices are arranged in a network and doesn’t refer to a specific shape like the ones above.
If you can provide further details about the image or the layout described, I can help you narrow it down to the specific topology.