It was hard. The "cognify" part was okay.
You can practice by watching some YouTube videos. There are plenty of example ones.
A five-part game. You get like 3-5 minutes on each game.
The following metrics were computed from 5 interview experiences for the IBM Devops Engineer role in Canada.
IBM's interview process for their Devops Engineer roles in Canada is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for IBM's Devops Engineer interview process in Canada.