If there are $n$ devices (nodes) in a network, what is the number of cable links required for a fully connected mesh and a star topology respectively
Option A is correct.
In a full mesh topology, every computer in the network has a connection to each of the other computers in that network. The number of connections in this network can be calculated using the following formula (n is the number of computers in the network): n(n-1)/2
A) n(n-1)/2 and n-1