In this lesson I step through the underpinnings of the Domain Name System. Also known as DNS.

I get into detail on what it is, why we use it, and how it works.

The information in this lesson will not be on the exam, but will give a better understanding to any topics that cover DNS or domain name translation.

IANA : https://www.iana.org

Root Zone File : https://www.internic.net/domain/root.zone

Root hints : https://www.internic.net/domain/named.root

Root Servers : https://www.iana.org/domains/root/servers