VitoriaDMP - MO412 - 2023-1s

 Consider a scale-free network of Protein Interactions, with average degree of 2.9, second moment of 32.3, and degree exponent of 2.89. It is possible to  affirm  that: A. The preferential attachment property is valid, with a probability Π(k) that a link of a new node links to another node of degree k proportional to the square of k. B. This network is perfectly assortative, with a degree correlation coefficient r of 1. C. This network displays enhanced robustness since its breakdown threshold of value 0.9 is grater than the breakdown threshold of random network prediction of value 0.65.  D. This network is in a random network regime, since the degree exponent is close to 3. E. None of the above.  Original idea by: Vitoria D. M. Pinho 

 Choose the correct alternative about evolving network models:  A. In the Bianconi-Barabási Model, the preferential attachment is proportional to the node's degree and fitness property, which is the probability of generating new internal links between pre-existing nodes. B. In the Initial Attractiveness Model, the preferential attachment is proportional to the product of the node degree and a constant A, called initial attractiveness.  C. In the Accelerated Growth Model, for any θ value, the network is always scale-free. D. In the Aging Model, the preferential attachment depends on a v parameter. A positive ν means that new nodes are more likely to connect to younger nodes, while a negative v means that new nodes are more likely to connect to older nodes. E. None of the above.  Original idea by: Vitoria D. M. Pinho