Which statement about cookies is true?

Which statement about cookies is true?

• A. Cookies are small data files stored by a browser to remember state, preferences, or tracking.
• B. Cookies are used to measure network throughput.
• C. Cookies replace DNS.
• D. Cookies are used to encrypt data.

Answer: (A)

Cookies are small data files stored by a browser to remember state, preferences, or tracking. When you visit a site, the server can send a cookie with information like a session identifier or your language choice, and the browser saves it. On future visits, the browser sends that cookie back to the site, letting it recognize you, keep you logged in, remember items in a shopping cart, or apply your preferences. They aren’t used to measure network throughput, don’t replace DNS, and don’t encrypt data—their role is simply to store and send small bits of information that help maintain continuity and personalization across requests. Security attributes like Secure and HttpOnly can affect how cookies are transmitted and accessed, but encryption itself isn’t the function of cookies.

Cookies are small data files stored by a browser to remember state, preferences, or tracking. When you visit a site, the server can send a cookie with information like a session identifier or your language choice, and the browser saves it. On future visits, the browser sends that cookie back to the site, letting it recognize you, keep you logged in, remember items in a shopping cart, or apply your preferences. They aren’t used to measure network throughput, don’t replace DNS, and don’t encrypt data—their role is simply to store and send small bits of information that help maintain continuity and personalization across requests. Security attributes like Secure and HttpOnly can affect how cookies are transmitted and accessed, but encryption itself isn’t the function of cookies.