The process has three rounds: mostly technical, followed by a final HR interview. This is standard.
It takes a long time, over two months for the entire process. I would recommend keeping the search for other roles active elsewhere while the IBM process continues. Relying on it completely is not a good idea, as it can turn out in any direction within two months' time.
Technical questions on Oracle.
The following metrics were computed from 1 interview experience for the IBM DBA role in Canada.
IBM's interview process for their DBA roles in Canada is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for IBM's DBA interview process in Canada.