From the book : Internet of Things From Hype to Reality: The Road to Digitization (2nd ed), Ammar Rayes, Samer Salam. 2019. Springer International Publishing

At the end of the chapter I (page 30-33),let's find Problems and Exercises,

Please need your help tp answer below questions:

19. What are the main differences between virtual machines and containers in virtualization? Provide an example of container technology. Which approach do you prefer and why?

20. List two main functions that TCP/IP protocol, the bread and butter of todays Internet.

21. Why do we need both TCP and IP protocols?

22. It is often said by User Experience Experts that the Best Interface for a system is no User Interface. What does such statement mean? When does it typically apply? Provide an example in networking technologies

Thanks very much