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Cognizant Associate Data Scientist Interview Questions and Answers for Experienced
Updated
6 May 2023
1 interview found
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Popular
Anonymous
Interview experience
Good
Difficulty level
Moderate
Duration
2-4 weeks
Result
Selected
I applied via Referral and was interviewed in Apr 2023.
4 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
2
Technical Round (1 Question)
- Q1. Basic Data science related questions on Overfitting, classification models. Add Answer
3
Technical Round (1 Question)
- Q1. It was managerial round, More about how you will handle work and questions on project. Add Answer
4
HR Round (1 Question)
- Q1. Salary negotiation Add Answer
Interview questions from similar companies
Interview experience
Average
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via Approached by Company and was interviewed in Sep 2024.
1 Interview Round
1
Technical Round (2 Questions)
- Q1. Gave one easy question and asked what will be the output Add Answer
- Q2. Leetcode 2 sum question Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - I was pretty much sure that I would pass L1 round and hoping for L2 round. I was interviewing for Generative AI Engineer. It was full 1 hr. The interviewer was less experienced than me. He asked me about my current work and focused more on previous work. I gave 80% correct answers and still did not make it. Don't know what they were expecting from me. Then I thought, maybe they are just taking the interview for the name sake. Sometimes, rejections are baseless.
Interview experience
Good
Difficulty level
Hard
Duration
Less than 2 weeks
Result
Selected
I applied via Recruitment Consulltant and was interviewed in Jul 2024.
3 Interview Rounds
1
Technical Round (1 Question)
- Q1. Deep questions about Machine learning, Deep learning, Generative AI, the working of transformers etc. Add Answer
2
Technical Round (1 Question)
- Q1. Deep questions about Machine learning and deep learning with projects done. This was a client round. Add Answer
3
HR Round (1 Question)
- Q1. Salary discussion, project discussion, why change? Why Wipro Add Answer
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
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
Interview experience
Poor
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (2 Questions)
- Q1. What is overfitting and underfitting View Answers (1)
- Q2. What are LLM Models View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Prepare for python questions
Skills evaluated in this interview
Rohit Mishra
Interview experience
Average
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I applied via Company Website and was interviewed in Nov 2023.
1 Interview Round
1
Technical Round (1 Question)
- Q1. Can you discuss one of your project in detail and why have you chosen those specific model to start with? Add Answer
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I applied via Naukri.com and was interviewed before Apr 2022.
3 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
2
Case Study Round
DS related Case study and discussion
3
Coding Test Round
Python code example test where they will ask basic python or sql questions.
Interview Preparation Tips
Interview preparation tips for other job seekers - Be prepared with statistics and previous projects that you have worked on.
Cognizant Interview FAQs
How many rounds are there in Cognizant Associate Data Scientist interview for experienced candidates?
Cognizant interview process for experienced candidates usually has 4 rounds. The most common rounds in the Cognizant interview process for experienced candidates are Technical, Resume Shortlist and HR.
How to prepare for Cognizant Associate 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 Data Science and Vendor Management.
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