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Tata Digital Data Scientist Interview Questions and Answers
Tata Digital Data Scientist Interview Experiences
1 interview found
Aniruddh Bhat
(2 Questions)
- Q1. Tell me about 1 project you have worked on and what did you learn during this?
- Ans.
Developed a machine learning model to predict customer churn for a telecom company.
Collected and cleaned customer data including demographics, usage patterns, and customer service interactions.
Used various machine learning algorithms such as logistic regression, random forest, and XGBoost to build and evaluate the model.
Identified key factors contributing to customer churn such as contract length, monthly charges, and ...
- Q2. How do you build a recommendation system?
- Ans.
A recommendation system can be built using collaborative filtering, content-based filtering, or hybrid approaches.
Collect and preprocess data on user preferences and item attributes
Implement collaborative filtering by recommending items based on user behavior and preferences
Utilize content-based filtering by recommending items similar to those previously liked by the user
Consider hybrid approaches that combine collabor...
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Selected
I applied via LinkedIn and was interviewed before Oct 2023. There were 3 interview rounds.
Basic aptitude question
(1 Question)
- Q1. Basic analysis and ML questions , more focused on approach instead of coding
(1 Question)
- Q1. As like other HR rounds
I applied via Walk-in and was interviewed before Oct 2023. There was 1 interview round.
(1 Question)
- Q1. Proficiency in cloud technology
- Ans.
Proficiency in cloud technology is essential for data scientists to efficiently store, manage, and analyze large datasets.
Experience with cloud platforms like AWS, Azure, or Google Cloud
Knowledge of cloud storage solutions like S3, Blob Storage, or Cloud Storage
Understanding of cloud computing concepts like virtual machines, containers, and serverless computing
Ability to work with big data technologies like Hadoop, Spa
Interview Preparation Tips
Skills evaluated in this interview
Senior Data Scientist Interview Questions & Answers
LatentView Analytics
Anonymous
posted on 5 Feb 2022
I applied via Referral and was interviewed before Feb 2021. There were 3 interview rounds.
Sql and basis python
Business related case study
(1 Question)
- Q1. Previous Project discussion
Interview Preparation Tips
I applied via campus placement at Lovely Professional University (LPU) and was interviewed before May 2023. There was 1 interview round.
(2 Questions)
- Q1. Reverse a string in list
- Ans.
Reverse a string in a list of strings
Iterate through each string in the list
Use the built-in function to reverse each string
Store the reversed strings in a new list
- Q2. Explain joins in sql
- Ans.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Oct 2023. There was 1 interview round.
(1 Question)
- Q1. Proficiency in cloud technology
- Ans.
Proficiency in cloud technology is essential for data scientists to efficiently store, manage, and analyze large datasets.
Experience with cloud platforms like AWS, Azure, or Google Cloud
Knowledge of cloud storage solutions like S3, Blob Storage, or Cloud Storage
Understanding of cloud computing concepts like virtual machines, containers, and serverless computing
Ability to work with big data technologies like Hadoop, Spa
Interview Preparation Tips
Skills evaluated in this interview
Lead Data Scientist Interview Questions & Answers
Blenheim Chalcot
Salem Shaikh
posted on 8 Mar 2024
Selected
I applied via Approached by Company
(1 Question)
- Q1. Rating compliment the process
Interview Preparation Tips
Selected
I applied via LinkedIn and was interviewed before Oct 2023. There were 3 interview rounds.
Basic aptitude question
(1 Question)
- Q1. Basic analysis and ML questions , more focused on approach instead of coding
(1 Question)
- Q1. As like other HR rounds
Selected
I applied via LinkedIn and was interviewed in May 2023. There were 4 interview rounds.
Quantitative Analysis , Reasoning and verbal
(1 Question)
- Q1. SQL , Python , Machine Learning (prefered)
(1 Question)
- Q1. Basic HR questions asked available on internet
I applied via campus placement at Lovely Professional University (LPU) and was interviewed before May 2023. There was 1 interview round.
(2 Questions)
- Q1. Reverse a string in list
- Ans.
Reverse a string in a list of strings
Iterate through each string in the list
Use the built-in function to reverse each string
Store the reversed strings in a new list
- Q2. Explain joins in sql
- Ans.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
Interview Preparation Tips
Skills evaluated in this interview
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Tata Digital Interviews By Designations
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Interview Questions for Popular Designations
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Tata Digital Data Scientist Interview Process
based on 1 interview
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Tata Digital Data Scientist Reviews and Ratings
based on 6 reviews
Rating in categories
|
Digital Engineer
86
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|  ₹9 L/yr - ₹16.2 L/yr |
|
Product Manager
79
salaries
| ₹23 L/yr - ₹55 L/yr |
|
Associate Director
59
salaries
| ₹17.2 L/yr - ₹62.2 L/yr |
|
Software Engineer
43
salaries
| ₹5.3 L/yr - ₹19.2 L/yr |
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Senior Manager
39
salaries
| ₹11.2 L/yr - ₹42 L/yr |
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