VEX U - question on VUR9 examples of RF

(Sorry in advance of a few Vex U questions, we will be running a Vex U skills challenge this weekend and I have not inspected Vex U before)

Can you please list some non-permitted communication mechanisms on co-processing mechanisms (like a Pi or Intel Atom or Arduino)? I’m not sure what to look out for.

  1. wi-fi networked - assume no
  2. blutooth - assume no as the underlying is an RF form of communication

These are both not permitted.