I tried to do that for the first test, but after finally finding the room (I got a bit stuck on realizing there was an elevator, and only one worked from the bottom floor) the only thing I could do in that room with the robotic AI head was learn how to synthesis and his quest to catch them all. I'm sure I may have missed something but I gave up and went ahead with test one anyway, it was incredibly easy so I never tried finding the practice again. I'll go again before taking the Hack Test and find it for sure.
I choke on complex Corpus hack terminals a lot. Grineer hacks are a piece of cake, even the opposite direction each activation ones.
Tip for corpus hacking especially the complex ones:
Always link the outer lines to each other first then do the inside.
And unless they changed it you can use ciphers (which instantly solves the hacking puzzle) and cheese the test if you want.