What are cookies in a web browser?

• A. A term for memory dumps.
• B. Small files used to store site preferences and session data on your device.
• C. A tool to block ads.
• D. Data that only stores login credentials in plaintext.

Answer: (B)

Cookies are small text files that a website saves on your device to remember preferences and session information. When you visit a site, it can ask your browser to store a cookie with tiny bits of data, like your login status, language choice, or items in a shopping cart. Later, when you come back or move through the site, the browser sends that cookie back to the site so it can recognize you and tailor your experience. They can be first-party (from the site you’re visiting) or third-party (from other sites linked on the page), and they have expiration controls you can manage in your browser. Cookies aren’t memory dumps, aren’t a built-in ad blocker, and they don’t have to store login credentials in plaintext; they’re simply small data files used to remember information between visits.