Plenty of this in remote interviews, even if it's just people googling answers. I was slightly frustrated with one candidate and spelled the term I'd just used for him so he could search for it.
If your interview isn't screening for the work you want somebody to do then it's not a good metric for finding successful employees.
This asymmetry exists regardless of how representative of real work the interview process is, short of a full-time engagement.
If he actually delivers good work, who cares if he cheats?
He already lied once. Why not lie more?