Session cookies are best described as cookies that what?

• A. Are normally deleted when you exit the website
• B. Persist across browser restarts
• C. Are used for secure authentication
• D. Keep track of your visits and activities on that website and are normally deleted when you exit the website

Answer: (D)

Session cookies are temporary pieces of data that keep track of your activity during a single visit to a site. They let the site remember that you’re logged in, what’s in your shopping cart, or where you are in a multi-page form as you navigate, and they’re normally deleted when you exit the site or close the browser. That combination—tracking your activity within the visit and being removed after you leave—is what characterizes session cookies.

The other descriptions miss part of the picture: persisting across restarts describes persistent cookies, not session cookies; secure authentication is possible with cookies but isn’t the defining trait of session cookies; and describing them only as deletion ignores the ongoing tracking of the session’s activities.