We have the following undirected and unweighted network composed of eight nodes and eight edges.

a) What is the degree for node f and a? Justify your choice and explain clearly your computation. b) How do you compute node centrality for node f and d? Justify your choice and explain clearly your computation. c) Do you have another measure to estimate the node centrality? If yes, provide this second solution for the two nodes, otherwise why it is impossible to define a second measure?

d) What are the characteristics of a small world graph? Is the graph shown upper such a small world graph? Justify your answer.