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Cognizant Data Scientist Interview Questions and Answers for Experienced
Updated
3 Apr 2024
5 interviews found
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Anonymous
Interview experience
Good
Difficulty level
Moderate
Duration
2-4 weeks
Result
-
I applied via Naukri.com and was interviewed in Oct 2023.
2 Interview Rounds
1
Technical Round (3 Questions)
- Q1. Discussion on projects mentioned in the Resume Add Answer
- Q2. Two Python live coding questions Add Answer
- Q3. Few DL, ML, Transformers, and NLP questions
Few questions on deployment tools mentioned in the resume Add Answer
2
HR Round (1 Question)
- Q1. General HR discussion Add Answer
Interview experience
Average
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I applied via Referral and was interviewed before Oct 2022.
1 Interview Round
1
Technical Round (2 Questions)
- Q1. If you have genuine deep learning expereince you will be easily crack the interview. Deep learning analytical question was asked. Add Answer
- Q2. Basic deep learning questions Add Answer
I applied via LinkedIn and was interviewed in Mar 2021.
3 Interview Rounds
Interview Questions
- Q1. Python pandas operation and ML algorithm in details like Random Forest, Logistic regression, Decision Tree Classifier and ML optimization technique like Gradien...read more
Add Answer
- Q2. Python basics and Numpy libraries knowledge must have.
Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Strat building logical thinking and whatever you are telling to interviewer that should be in appropriate ways.
If you don't know any asked Questions then your answer should be like, I know and worked as well but unable to recall right now.
Thanks
If you don't know any asked Questions then your answer should be like, I know and worked as well but unable to recall right now.
Thanks
What people are saying about Cognizant
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hardoggy
currently not working
Which to choose between Cognizant and TCS?
I am a recent CSE graduate and got two offers,
Cognizant Engineer Trainee - 4 LPA (1 year probation period)
TCS Ninja role - 3.36 LPA
Which is better to join as a fresher?
Got a question about Cognizant?
Ask anonymously on communities.
I applied via Recruitment Consultant and was interviewed in Sep 2020.
3 Interview Rounds
Interview Questions
- Q1. Machine learning concepts[Regression and classification] ,Python and Sql Basics
Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Cool
Cognizant interview questions for designations
AS Learning
Interview questions from similar companies
Interview experience
Good
Difficulty level
Moderate
Duration
2-4 weeks
Result
Not Selected
I applied via Job Portal and was interviewed in Apr 2024.
1 Interview Round
1
Technical Round (9 Questions)
- Q1. Explain XGBoost algoritm View Answers (1)
- Q2. XgBoost algorithm has 10-20 features. How are the splits decided, on which feature are they going to be divided? View Answers (2)
- Q3. Do you have any experience on cloud platform? View Answers (1)
- Q4. What is entropy, information gain? View Answers (1)
- Q5. What is hypothesis testing? View Answers (1)
- Q6. Explain precision and recall, when are they used in which scenario? View Answers (1)
- Q7. What is data imbalance? View Answers (1)
- Q8. What is SMOTE?
Do you have any experience working on Time Series?
Code analysis of global variable? View Answers (1)
- Q9. Find 5th highest salary in every department.
What are window functions
Difference between union and union all
Difference between delete and truncate. Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Prepare basics well. Go through the top questions asked for SQL,Python,Data Science.
Well versed with resume projects and concepts used in it.
Well versed with resume projects and concepts used in it.
Skills evaluated in this interview
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
-
2 Interview Rounds
1
One-on-one Round (4 Questions)
- Q1. Cosine similarity View Answers (1)
- Q2. What is difference between recall and precission View Answers (2)
- Q3. How to remove stop words and how it works View Answers (1)
- Q4. Whats the goal of project Add Answer
2
One-on-one Round (1 Question)
- Q1. Pipeline design Add Answer
Skills evaluated in this interview
Interview experience
Average
Difficulty level
-
Duration
-
Result
-
I applied via Naukri.com and was interviewed in Jul 2024.
1 Interview Round
1
Technical Round (1 Question)
- Q1. Pandas basics and SQL joins nlp Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - It was good
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
3 Interview Rounds
1
Technical Round (1 Question)
- Q1. Explain a project written in resume. Add Answer
2
Technical Round (1 Question)
- Q1. Explain a project from you resume. Add Answer
3
HR Round (1 Question)
- Q1. What are your strengths? Add Answer
Interview experience
Average
Difficulty level
-
Duration
-
Result
Selected
1 Interview Round
1
One-on-one Round (2 Questions)
- Q1. Difference between supervised and unsupervised learning View Answers (1)
- Q2. What is sigmoid function View Answers (1)
Skills evaluated in this interview
Cognizant Interview FAQs
How many rounds are there in Cognizant Data Scientist interview for experienced candidates?
Cognizant interview process for experienced candidates usually has 2 rounds. The most common rounds in the Cognizant interview process for experienced candidates are Technical, Resume Shortlist and HR.
How to prepare for Cognizant Data Scientist interview for experienced candidates?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Cognizant. The most common topics and skills that interviewers at Cognizant expect are Machine Learning, Python, Data Science, SQL and Artificial Intelligence.
What are the top questions asked in Cognizant Data Scientist interview for experienced candidates?
Some of the top questions asked at the Cognizant Data Scientist interview for experienced candidates -
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People are getting interviews through
based on 4 Cognizant interviews
Job Portal
Recruitment Consultant
Referral
50%
25%
25%
Moderate
Confidence
?
Moderate Confidence means the data is based on a sufficient number of responses received from the candidates
Data Scientist Interview Questions from Similar Companies
Fast track your campus placements
22%
less
than the average Data Scientist Salary in India
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based on 42 reviews
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