Is there a difference between authentication and authorization?

Question

I see these two terms bandied about quite a bit (specifically in web-based scenarios but I suppose it\'s not limited to that) and I was wondering whether or not there was a

Answer 1

Authorization is a process by which server determines if the client has permission to use a resources or access file.

Authentication is used by a server when the server needs to know exactly who is accessing their information or site.