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:

23. This question has 5 parts:

(a) What is circuit-switched technology? What is packet-switched technology?

(b) What are circuit-switched networks and packet-switched networks used for? List an example of each use.

(c) Why did we need packet-switched technology?

(d) In a table, list three main differences between packet switching and circuit switching?

(e) Which approach is better for the Internet and why?

Thanks very much