A fully connected network topology is a topology in which there is a direct link between all pairs of nodes. Given a fully connected network with n nodes, the number of direct links as a function of n can be expressed as
A. n(n+1)/2
B. (n+1)/2
C. n/2
D. n(n-1)/2
Answer:D
A fully connected network topology is a topology in which there is a direct link between all pairs of nodes. Given a fully connected network with n nodes, the number of direct links as a function of n can be expressed as
A. n(n+1)/2 B. (n+1)/2 C. n/2 D. n(n-1)/2