Suggest an editImprove this articleRefine the answer for “What problem does DNS solve?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**DNS** solves the mismatch between how people think and how computers work on a network: people need names, while computers need IP addresses. **Key point:** thanks to DNS, a site can change its server or IP without users noticing anything, because the name stays the same.Shown above the full answer for quick recall.Answer (EN)Image**DNS solves the mismatch between how people think and how computers work on a network.** In simpler terms: **people need names, while computers need IP addresses**. --- ## What exactly is the problem ### Without DNS it would look like this: - sites would only have IP addresses ``` 142.250.184.206 ``` - to open a site, you would have to **memorize and type the IP** - when the IP changed, the site would "break" for everyone This is: - inconvenient - impractical - not scalable --- ## What problem DNS solves ### 1. Makes the internet convenient for people DNS lets you use **understandable names**: - `google.com` - `example.com` Instead of strings of digits. --- ### 2. Separates a site's name from its IP address A site can: - move to another server - change its IP address - use several IPs The user **will not notice anything**, because the name stays the same. --- ### 3. Lets the internet scale DNS is: - a distributed system - has no single "main server" - supports millions of sites Without DNS, managing so many addresses would be impossible. --- ### 4. Simplifies administration An administrator: - changes the IP in DNS - does not change links, applications, or bookmarks This is **critical for business and infrastructure**. --- ## Short example The user enters: ``` example.com ``` DNS solves the problem: > "Which IP does this name correspond to?" And responds: ``` 93.184.216.34 ``` From there the browser works **by IP**. --- ## Real-life example DNS is like a contact list in a phone: - you pick a name - the phone substitutes the number - if the number changes, you still call by name --- ## Short interview answer Remember this formulation: > **DNS solves the problem of translating domain names, which are convenient for humans, into IP addresses used by computers to communicate on a network, thereby making the internet convenient and scalable.**For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.