2021-057

Given the following statements,

I - A scale-free network is a network whose degree distribution follows a power law.
II - All real-world networks can be described as scale-free networks
III - Hubs are much more common in scale-free networks than in random networks
IV - The World Wide Web was the first real network that could be described as a random network

Select the alternative where statements are incorrect:

1. I and III
2. I, II and III
3. II and IV
4. III and IV
5. None of the above.

Original idea by: Taylla Milena Theodoro