Stupid WDS Question from Wiley MOAC

You are administering a computer that does not support PXE boot. Which action should be taken to start the computer and install an image using WDS?

  1. Use a boot image
  2. Use an install image
  3. Use a discover image
  4. Boot with a DOS boot disk
  5. Replace that ancient piece of crap
The answer they're looking for of course is "3. Use a discover image", but in reality I can't say that, at least in the last 10 years, I've seen a PC that actually didn't support PXE. 

Who can point me to one made in the last 10 years that is otherwise a functioning Windows-capable computer with a network card?