What Is DNS?
The system that converts human-readable names into routable IP addresses.
Definition
DNS (Domain Name System) transforms names like google.com into network addresses like 142.250.72.14. It is the internet’s address book.
Example
you type → google.com resolver → checks cache or queries servers result → 142.250.72.14
Why It Matters
Without DNS, every connection would require manually typing IPs — the internet would be unusable.
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