Interview process is very good, they asked question from your CV only, so you should well prepared your resume before interview and remove technologies/items that not related to your recent experience.
The questions are from your CV only.
The following metrics were computed from 1 interview experience for the Fiserv Solution Architect role in India.
Fiserv's interview process for their Solution Architect roles in India is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Fiserv's Solution Architect interview process in India.