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Cognizant Data Scientist interview questions

based on 58 ratings - Updated Dec 6, 2025

Average interview difficulty

Mostly positive interview experience

How others got an interview

57%
Campus Recruiting
Campus Recruiting
20%
Applied online
Applied online
11%
Staffing Agency
Staffing Agency
7%
Recruiter
Recruiter
5%
Employee Referral
Employee Referral

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58 interviews

Data Scientist Interview

Mar 10, 2022

Anonymous Interview Candidate

Declined offer

Positive experience

Average interview

Application

I applied online. The process took 4 weeks. I interviewed at Cognizant in Aug 2021

Interview

It is really good and the interviewer was friendly. The interviewer asked OS, DBMS, and full data science stuff and 1 code. The main focus of the interview was on statistics and Machine Learning Model. Projects mentioned in the resume will be asked to explain properly and what problem did u faces.

Interview questions [1]

Question 1

What is a variance? Explain ur project.

Answer question

Data Scientist Interview

Feb 28, 2022

Anonymous employee

Accepted offer

Positive experience

Average interview

Application

I applied through college or university. I interviewed at Cognizant (Calcutta) in Jan 2022

Interview

It was a campus placement, there was resume selection followed by aptitude test and 2 rounds of interview . The final round was mainly document verification round. The results take time to get declared so be patient!

Interview questions [1]

Question 1

Statistics, Econometrics , time series, difference between list and tuple, regression, correlation, outlier detection, scatter plots, central tendency, vlookup and index and about the projects mentioned in resume.

1 Answer

Data Scientist Interview

Jan 27, 2022

Anonymous employee

Accepted offer

Positive experience

Average interview

Application

I applied online. I interviewed at Cognizant

Interview

It was 2 round of interview. In first round they have asked questions related to your projects you have done also programming questions on python and sql. They have asked question on machine learning and statistics.

Interview questions [1]

Question 1

Explain about your project and what was the outcome.

Answer question

Viewing 21 - 25 of 58 Interviews

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Cognizant Data Scientist interview questions

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