What are the similarities and diffe­rences between bus and tree topologies ?

Similarities

1. Transmission can be done in both the directions, and can be received by all other stations.
2. There is no need to remove packets from the medium.

Differences

1. Tree topology is a network with the shape of an inverted tree with the central root branching and sub-branching to the extremities of the network whereas in bus topology, all devices on network are connected to a single continuous cable called a bus.
2. Tree topology is expensive and difficult to maintain as compared to Bus Topology.