What is DNS ? Working process of dns.

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DNS stands for Domain Name System. It translates domain names to IP addresses to enable communication over the internet.

DNS is like a phone book for the internet, translating domain names (like google.com) to IP addresses (like 172.217.3.206).
When you type a domain name into your browser, your computer queries a DNS server to find the corresponding IP address.
DNS works through a hierarchical system of servers, with the root servers at the top, followed by top-level domain servers, and then authoritative name servers for specific domains.