Tata Digital Interview Questions, Process, and Tips

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 ...read more
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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...read more
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Q1. Design Survey Monkey
Ans. 
Design a survey platform like Survey Monkey
• Allow users to create custom surveys with various question types

• Provide options for users to distribute surveys via email, social media, or website links

• Include analytics tools to track responses and generate reports

• Ensure user-friendly interface for both survey creators and respondents
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Q1. What is DSA and implement any one data structure you like?
Ans. 
DSA stands for Data Structures and Algorithms. One commonly used data structure is an array.
• DSA is essential for solving complex problems efficiently.

• Data structures like arrays, linked lists, trees, graphs, etc., are used to store and manipulate data.

• Algorithms are used to perform operations on these data structures.

• Implementing an array involves creating a fixed-size collection of elements of the same type.

• Example: I
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Q1. Describe what you did in last role
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Q1. Why do you want to join Tata Digital
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1:30 hrs 3 dsa questions

Q1. Dsa question based on string and recursion
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Q1. Question on project and general oops concepts.
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