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Tata Digital Interview Questions and Answers
18 Interview questions
Main programming paradigms include procedural, object-oriented, functional, and declarative programming, each with unique approaches.
Procedural Programming: Focuses on procedures or routines (e.g., C, Pascal).
Object-Oriented Programming: Uses objects to represent data and methods (e.g., Java, C++).
Functional Programming: Emphasizes functions and immutability (e.g., Haskell, Scala).
Declarative Programming: Focuses ...
Learn how to retrieve SQL query results in JSON format using SQL Server or PostgreSQL.
Use the FOR JSON clause in SQL Server to format results as JSON. Example: SELECT * FROM Patients FOR JSON AUTO;
In PostgreSQL, use the json_agg() function to aggregate rows into a JSON array. Example: SELECT json_agg(t) FROM (SELECT * FROM Patients) t;
Ensure your SQL database supports JSON functions; check documentation for specif...
Rank, Dense_Rank, and Row_Number are functions used in SQL to assign a ranking to rows in a result set.
Rank assigns a unique rank to each row based on the specified column values.
Dense_Rank assigns a unique rank to each row without any gaps, even if there are ties.
Row_Number assigns a unique sequential integer to each row in the result set.
Example: If we have a table of students with their scores, Rank would assig...
Lag is a delay in a process, while lead is an acceleration or advancement.
Lag refers to a delay in a process or activity, where there is a gap between the desired outcome and the actual outcome.
Lead refers to an acceleration or advancement in a process, where the desired outcome is achieved before the actual outcome.
For example, in project management, lag time is the delay between the completion of one task and th...
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 col...
A subnet is a smaller network within a larger network, created by dividing the IP address range of the larger network.
Subnets help in organizing and managing network resources efficiently.
They allow for better security by isolating different parts of the network.
Subnets can be created by dividing an IP address range into smaller ranges.
For example, a company may have different subnets for different departments lik...
OOPS concepts include Inheritance, Encapsulation, Polymorphism, and Abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation details and showing only the necessary feature...
Print prime numbers between 100 to 1,00,000
Start with a loop from 100 to 100000
Check if the current number is prime or not
If prime, print the number
To detect loop in linked list, use Floyd's cycle-finding algorithm.
Create two pointers, slow and fast, and initialize both to the head of the linked list.
Move slow pointer by one node and fast pointer by two nodes.
If there is a loop, the two pointers will eventually meet.
If there is no loop, the fast pointer will reach the end of the linked list.
Time complexity: O(n), Space complexity: O(1)
Yes, I have experience working in fast-paced environments with constantly changing requirements.
I am adaptable and can quickly adjust to changing priorities
I am comfortable with ambiguity and can work under pressure
I have experience working on projects with tight deadlines and changing requirements, such as software development projects
I am proactive in communicating with stakeholders to ensure everyone is on the ...
Tata Digital Interview Experiences
48 interviews found
Anonymous
I applied via Referral and was interviewed in Dec 2024. There were 4 interview rounds.
(4 Questions)
- Q1. Difference between Lag & Lead with an example
- Ans.
Lag is a delay in a process, while lead is an acceleration or advancement.
Lag refers to a delay in a process or activity, where there is a gap between the desired outcome and the actual outcome.
Lead refers to an acceleration or advancement in a process, where the desired outcome is achieved before the actual outcome.
For example, in project management, lag time is the delay between the completion of one task and the sta...
- Q2. Example explaining Rank,Dense_Rank,Row_Number
- Ans.
Rank, Dense_Rank, and Row_Number are functions used in SQL to assign a ranking to rows in a result set.
Rank assigns a unique rank to each row based on the specified column values.
Dense_Rank assigns a unique rank to each row without any gaps, even if there are ties.
Row_Number assigns a unique sequential integer to each row in the result set.
Example: If we have a table of students with their scores, Rank would assign ran...
- Q3. Business question around customer funneling.
- Q4. Some technical questions around marketing campaigns(utm_source,campaign_id,etc.)
(2 Questions)
- Q1. Questions around customer funneling(Ideal and non-ideal)
- Q2. Some other business related problems and situational questions.
(1 Question)
- Q1. Behavioural and resume basaed questions with some situational questions.
(1 Question)
- Q1. Behavioral questions.
Interview Preparation Tips
(2 Questions)
- Q1. Architecture Design, Deep Dive
- Q2. Problem statement
(2 Questions)
- Q1. System Design, Software Fundamentals
- Q2. Security, Leadership
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Tell about Site operation
- Ans.
Site operations involve managing daily activities, resources, and processes to ensure efficiency and productivity.
Oversee daily operations to ensure smooth workflow, such as scheduling staff and managing inventory.
Implement safety protocols to maintain a safe working environment, like regular safety drills.
Monitor performance metrics to identify areas for improvement, such as reducing downtime in production.
Coordinate ...
- Q2. Tell about launch
- Ans.
Launching a project involves planning, execution, and monitoring to ensure successful delivery and stakeholder satisfaction.
Define clear objectives and goals for the launch, such as increasing market share by 10%.
Develop a detailed project plan outlining timelines, resources, and responsibilities.
Engage stakeholders early to gather input and ensure alignment with their expectations.
Conduct thorough testing and quality ...
Interview Preparation Tips
rutik suryawanshi
(2 Questions)
- Q1. E-commerce platform and its working
- Ans.
E-commerce platform is a website or application where businesses sell products or services online.
E-commerce platforms allow businesses to create online stores to showcase and sell their products.
Customers can browse products, add them to cart, and make payments online through secure payment gateways.
Popular e-commerce platforms include Shopify, WooCommerce, Magento, and BigCommerce.
- Q2. Three things which you like and you dislike about e-commerce website
- Ans.
I like the convenience, variety of products, and personalized recommendations on e-commerce websites. I dislike slow loading times, hidden fees, and lack of customer service.
Convenience of shopping from home
Wide variety of products available
Personalized recommendations based on browsing history
Slow loading times can be frustrating for users
Hidden fees during checkout process can lead to dissatisfaction
Lack of responsiv...
(2 Questions)
- Q1. Behaviour and critical thinking
- Q2. Project and problem you have faced
- Ans.
Implemented CRM system for a company, faced challenges with data migration and user adoption.
Managed data migration from legacy systems to new CRM platform
Provided training and support to employees to ensure successful adoption
Addressed technical issues and customized CRM features to meet company's needs
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
Shivam kannojiya
(1 Question)
- 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
Skills evaluated in this interview
(1 Question)
- 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...
Skills evaluated in this interview
(1 Question)
- Q1. Sql based question to get result in json format
- Ans.
Learn how to retrieve SQL query results in JSON format using SQL Server or PostgreSQL.
Use the FOR JSON clause in SQL Server to format results as JSON. Example: SELECT * FROM Patients FOR JSON AUTO;
In PostgreSQL, use the json_agg() function to aggregate rows into a JSON array. Example: SELECT json_agg(t) FROM (SELECT * FROM Patients) t;
Ensure your SQL database supports JSON functions; check documentation for specific sy...
Selected
I appeared for an interview in Dec 2024, where I was asked the following questions.
- Q1. Cv related questions
- Q2. They ask chatgpt based question and expect answer that matches chatgpt answers only
(1 Question)
- Q1. Describe what you did in last role
(1 Question)
- Q1. Why do you want to join Tata Digital
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