Almost always your Backing Beans WILL be Managed Beans. Otherwise you'd have to manually manage them, and that would be giving up half the advantage of JSF for no real benefit.
And despite what Sergei said there, Managed/Backing Beans are NOT necessarily primarily request scope. In fact, JSF has been known to make some of us push beans into session scope just to get support of JSF's postback functions.
Bjoke: A "Bully Joke". A Statement or action made with malicious intent - unless challenged. At which point it magically transforms into "I was just funnin'" or "What's the matter, can't take a joke?"