How are devices connected in a star topology?

Which topology is shown in the diagram on the right?

Dodgy Dan has lots of old computers that he wants to connect to a network, though each computer has a high chance of randomly exploding. Suggest why a mesh may be appropriate for Dan’s network.

Explain the benefits of using wireless connections for a mesh network.

Give one advantage and one disadvantage of using a star topology rather than a mesh topology for a wired network.