score:1
There are maps at http://www.panynj.gov/airports/jfk-airport-map.html where you can see the locations of security checkpoints as a dotted red region. There is one checkpoint shown in each terminal. I do not know what you mean by "entry node" but perhaps this is what you were looking for.
If your question is about the specific configuration of the checkpoints (number of waiting lines / ID check podiums / X-ray scanners / metal detectors / etc) then note that such things are easily and frequently reconfigured, so any answer could be instantly obsolete.