REST APIs with Flask and Python - What is Domain Name System (DNS)?

The video explains how the Domain Name System (DNS) works, starting with a browser's attempt to find an IP address for a domain. It describes the DNS query process, involving root servers, TLD servers, and authoritative name servers. The video also covers setting up DNS with Cloudflare and concludes with a summary and next steps for correcting DNS settings.

What is the first action taken by a browser when it does not know the IP address for a domain?

How does the operating system contribute to the DNS query process?

Explain the role of root servers in the Domain Name System.

What happens when a TLD server does not know the IP address of a specific domain?

Describe the process the browser follows to obtain the IP address of a domain.

What are authoritative name servers and what is their significance?

What modifications are suggested for DNS settings in the lecture?