A. It is unique for the web server, whether it is restarted or not. B. Only until the web server is restarted. C. It is like a GUID in that it is for any web server at any time. D. Only until the session expires, then it can be reissued to another client. E. It is unique per client. A client cannot have two sessions with the same SessionID
RE: How long is a SessionID guaranteed to be unique?
B. Only until the web server is restarted
A SessionID is guaranteed to be unique for each user who is currently at your Web site. However the same SessionID might be used again after your Web server has been restarted. This means that you shouldn't attempt to track the same user over time by using her SessionID.
RE: How long is a SessionID guaranteed to be unique?
A SessionID is guaranteed to be unique for each user who is currently at your Web site. However the same SessionID might be used again after your Web server has been restarted. This means that you shouldn't attempt to track the same user over time by using her SessionID.