Cognizant consist of two rounds, may be vary in some cases
1. Technical
2. Technical+managerial round
Interview difficulty level is normal. I gave interview in 2022 and got selected, and really it's good to work in cognizant.
Fresher on campus placements: very basic C language questions are asked and some management questions. Quite easy and below average student could clear during Covid. not aware how it is going now
I applied through a staffing agency. I interviewed at Cognizant
Interview
2 technical round and 1 hr round. First technical was little tough. Second technical was like hr only.Nice experience.Cracking interview is easy. Study whatever u have worked.They do background verification.