KC 11.2 asks about advantages of tmpfs, but these advantages are never mentioned

Just an observation, but KC 11.2 asks about the advantages of tmpfs over traditional ramdisks. The tmpfs filesystem is briefly mentioned in the list of "special" filesystems, but its "advantages" are never mentioned.

While perusing the info "out there" on tmpfs, I suppose I can infer the three advantages the KC requires, although somewhat indirectly. The info I've read never mentions anything about formatting it, so I assume that means it doesn't require it.