What is the difference between a Session and a Cookie?

Question

What is the difference between a Session and a Cookie?

What circumstances should each be used?

Answer 1

Sessions are not reliant on the user allowing a cookie. They work instead like a token allowing access and passing information while the user has their browser open. The problem with sessions is that when you close your browser you also lose the session. So, if you had a site requiring a login, this couldn't be saved as a session like it could as a cookie, and the user would be forced to re-login every time they visit.