Network Architecture according to the ISO/OSI Model

The ISO/OSI architecture is well explained in the following link: https://it.wikipedia.org/wiki/Modello_OSI. After carefully reading the 7 levels of the ISO/OSI, you can watch the following videos to reinforce the theoretical part you read: First video in English:

Second video in Italian with a comparison to TCP/IP:

After watching the videos, complete the questions related to this topic on Classroom.