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Why do websites use cookies?

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Answer: Remember user preferences

Display website graphicsWrong. Cookies are text data, not graphics. They store information like login state, shopping cart, language preference—personalizing your experience.

Remember user preferencesCorrect! Cookies are small text files stored by your browser when visiting websites. They remember: login status (stay signed in), shopping carts, preferences, language settings. HTTP is 'stateless'—each request is independent. Cookies provide 'memory' so websites recognize returning users. Some track behavior for ads (third-party cookies). You can clear them anytime!

Prevent website hackingWrong. Secure cookies help verify identity, but they're not anti-hacking tools. Primary purpose is remembering user information across sessions.

Go deeper: HTTP · HTTP cookie
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