Sistem Terdistribusi

Nama: Nada Aviana
NPM: 15112197
Kelas: 4KA01

Exercise 13.8
Why do DNS root servers hold entries for two-level names such yahoo.com and purdue.edu, rather than one-level names such as edu and com?

Jawab:
First-level domain names such as edu and com refer to abstract categories of organizations  and administrative units, and do not refer any actual body. Second-level domain names such as yahoo.com and perdue.edu are not so many in number as to need to be divided between separate com and edu servers. Such a division would bring extra complexity and overheads. Although uk etc. do have separates servers