Selecting a ring or loop

Hello.I know this is a really n00bish question but I cannot remember how to select an entire ring of a circle or loop. I know it can be done I just don’t remember how.ThanksZer0s

Alt+RMB (right mouse button).

-Laurifer

Thanks a lot Laurifer this will really speed up the process.

Ctrl + alt + RMB for ring select