Thats what they said about the CCIE. How can you dump a practical exam lab, but it has been done.
The CCIE lab ranges has 30+ routers and devices depending on the track, there is a ticket troubleshoot session, and then a set of tasks that you need to complete. Some build on each other, some are done in order to break something else if you do it without thinking.
Certain parts have outputs of protocols which you then have to figure out how to get your configurations and lab to match.
The lab is marked by a script firstly, then by an invigilator across the globe to try prevent on premises cheating.
And yet, people still managed to cheat