KDataScience Senior Data Scientist Interview Questions and Answers for Experienced

Q1. Describe one of your projects?
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Q2. Where have you implemented the customer analytics?
Ans. 
I have implemented customer analytics in various industries including e-commerce and retail.
• Implemented customer segmentation analysis to identify different customer groups based on behavior and preferences

• Utilized predictive modeling techniques to forecast customer lifetime value and likelihood of churn

• Developed recommendation systems to personalize product offerings and improve customer engagement

• Used A/B testing to ...read more
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Q3. Which cloud services have you used for deploying the solutions?
Ans. 
I have experience deploying solutions on AWS, Azure, and Google Cloud Platform.
• AWS (Amazon Web Services)

• Azure

• Google Cloud Platform
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Q1. Basic QA related Questions
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Blood Relations, Pipes and Cisterns, Time and work etc.

Question based on hashmap

Is Artificial Intelligence boon or ban.

Q1. Python and SQL questions
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Q2. Python and Numpy, Pandas
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Q1. Basic SQL questions
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Q2. Statistical questions
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Difficult aptitude, had to solve a lot of problems in 2 hrs

GD topic was "online vs offline education "

Q1. SQL question on self join
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Q2. Guesstimate on number of cars sold in delhi
Ans. 
Approximately 1.5-2 million cars are sold in Delhi annually.
• Consider population of Delhi (approx. 20 million)

• Assume car ownership rate (approx. 10%)

• Factor in replacement rate and new buyers
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8 python coding
With 2 aptitude

Game based assessment.
More than 8 games need to play

Q1. Questions from python and also from SQL. SQL is must to place LatentView. Some projects related questions
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Q2. How many joins are in SQL what is lamda function in python Difference between tuples and list
Ans. 
Answering questions related to SQL joins, lambda function in Python, and difference between tuples and lists.
• There are four types of joins in SQL: inner join, left join, right join, and full outer join.

• Lambda function is an anonymous function in Python that can take any number of arguments, but can only have one expression.

• Tuples are immutable and ordered collections of elements, while lists are mutable and ordered col...read more
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Get questions from all topics and medium level questions

They give one topic and provide one minute for thinking its overall 30 min discussion

Q1. Total technical rounds 1)basic resume questions, python and sql questions. 2)same round 1 but a little bit extra dose 3) managerial round
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Q2. List, tuple, oops concept. joins from sql
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Q1. Why latent view why analytics best achivemnts
Ans. 
Latent view and analytics are essential for data-driven decision making. My best achievement is developing a predictive model for customer churn.
• Latent view helps to uncover hidden patterns and insights in data that are not immediately apparent.

• Analytics provides a systematic approach to analyzing data and extracting meaningful insights.

• My best achievement is developing a predictive model for customer churn that helped
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It was easy to approach!

Discussions about common topics like boon or bane to society

Asked about the scenarios

Q1. Technical round related to skills and resume
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Q1. Discussions regarding work culture and compensations
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