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Renault Nissan Technology & Business Centre India Data Science Intern Interview Questions and Answers

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I applied via Referral and was interviewed before Sep 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
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
Round 2 - HR 

(2 Questions)

  • Q1. Questions related to your life and society to check your presence of mind and awareness of the world.
  • Q2. Question from ic engines,about their working and processes involved.

Interview Preparation Tips

Topics to prepare for Tata Motors Associate interview:
  • Automobile,ic engines,excel.
Interview preparation tips for other job seekers - Be yourself,prepare well and hope for the best...
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Oct 2023. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Mechanical engineering questions
  • Q2. Some questions related to power bi and Excel

I applied via Referral and was interviewed in Dec 2019. There was 1 interview round.

Interview Questionnaire 

5 Questions

  • Q1. Tell me about your college ?
  • Q2. What do you understand the difference between UG and PG ?
  • Ans. 

    UG refers to undergraduate education while PG refers to postgraduate education.

    • UG is the first level of higher education after completing secondary education.

    • PG is pursued after completing UG and is a higher level of education.

    • UG courses are generally of 3-4 years duration while PG courses are of 1-2 years duration.

    • UG courses provide a broad understanding of a subject while PG courses provide in-depth knowledge and spe...

  • Answered by AI
  • Q3. Why Mahindra Finance ?
  • Q4. How your subjects helpful for this work?
  • Q5. Which department you are willing to work ?
  • Ans. 

    I am willing to work in the Marketing department.

    • I have a strong interest in marketing and have taken relevant courses in college.

    • I have experience in creating marketing campaigns and analyzing market trends.

    • I am skilled in social media marketing and have successfully managed social media accounts for small businesses.

    • I am a creative thinker and enjoy coming up with innovative marketing strategies.

    • I am a team player an...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be honest with your answer, because the first question which was asked by HR, the same will be asked at the end in different way.
Try to give more positive answers and don't give negative answers
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed before Aug 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

Aptitude, tech, tech

Round 2 - Technical 

(2 Questions)

  • Q1. C progrsmming questions are importnanr
  • Q2. C programming questions are importanr

Interview Preparation Tips

Interview preparation tips for other job seekers - great
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Feb 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

There were only theoretical and aptitude based mcq questions.

Round 2 - Technical 

(1 Question)

  • Q1. Mostly focus on problem solving and puzzles.
Round 3 - One-on-one 

(1 Question)

  • Q1. About projects, and some technical as well.
Round 4 - HR 

(1 Question)

  • Q1. Standard HR round related questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Do the basics of coding, learn important concepts and standards of programming.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - One-on-one 

(5 Questions)

  • Q1. Motivation come to this company
  • Q2. Would like to be a contributor in automotive industry
  • Q3. What experience in school
  • Q4. How you understand data-driven bussiness
  • Ans. 

    Data-driven business involves using data to make informed decisions and drive strategies.

    • Using data to analyze trends and patterns in customer behavior

    • Utilizing data to optimize marketing campaigns and target specific demographics

    • Implementing data-driven decision-making processes to improve operational efficiency

    • Leveraging data to forecast sales and inventory needs

    • Measuring key performance indicators (KPIs) to track bu

  • Answered by AI
  • Q5. What your strength and weakness
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - HR 

(1 Question)

  • Q1. 1. tell me about yourself 2. Why Tata Motors? 3. what are your expertise? 4. which field do you prefer in electrical?

Interview Preparation Tips

Interview preparation tips for other job seekers - be confident and be yourself in interview.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Aug 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

Speed distance, Age, percentage, logical and verbal

Round 2 - Group Discussion 

EV Growth and benefits

Round 3 - Technical 

(2 Questions)

  • Q1. Self introduction
  • Q2. Core, power electronics, circuits

Interview Preparation Tips

Topics to prepare for Maruti Suzuki Intern interview:
  • Core Subjects
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Mar 2024.

Round 1 - Coding Test 

45 mins 15 min mcq data science and 30 mins 1 dsa problem

Round 2 - Technical 

(5 Questions)

  • Q1. Python - All subsets of a list.
  • Ans. 

    Generate all possible subsets of a given list in Python.

    • Use itertools.combinations to generate all possible combinations of the list elements.

    • Convert the combinations to lists and store them in a new list to get all subsets.

  • Answered by AI
  • Q2. Sql query - Customers who have ordered all products from all categories.
  • Ans. 

    Use a SQL query to find customers who have ordered all products from all categories.

    • Join the Customers, Orders, and Products tables

    • Group by customer and count the distinct products ordered

    • Filter for customers who have ordered the total number of products available in each category

  • Answered by AI
  • Q3. Importance of feature engineering.
  • Ans. 

    Feature engineering is crucial in data science as it involves selecting, transforming, and creating new features to improve model performance.

    • Feature engineering helps in improving model accuracy by providing relevant and meaningful input variables.

    • It involves techniques like one-hot encoding, scaling, normalization, and creating interaction terms.

    • Feature engineering can help in reducing overfitting and improving model...

  • Answered by AI
  • Q4. Questions on project.
  • Q5. What is GAN.Have you worked with it.
  • Ans. 

    GAN stands for Generative Adversarial Network, a type of neural network used for generating new data.

    • Consists of two neural networks - generator and discriminator

    • Generator creates new data samples while discriminator tries to distinguish between real and generated data

    • Used in image generation, text generation, and other creative applications

  • Answered by AI
Round 3 - Technical 

(7 Questions)

  • Q1. Discussion on project.Demo of project.
  • Q2. Analysis sql query - whether class 11 marks or class 12 marks is greater., table given which contains student name,class,11th marks,12th marks.
  • Q3. Similar table. Find students who scored more than avg marks of both 11th and 12th.
  • Ans. 

    Find students who scored more than avg marks in both 11th and 12th grades.

    • Calculate the average marks for each student in 11th and 12th grades.

    • Compare each student's marks with the respective average marks to find those who scored higher in both grades.

  • Answered by AI
  • Q4. What is Cost function.
  • Ans. 

    Cost function is a mathematical function that measures the error between predicted values and actual values in a machine learning model.

    • Cost function helps in optimizing the parameters of a model to minimize the error.

    • Common cost functions include Mean Squared Error (MSE) and Cross Entropy Loss.

    • It is used in training machine learning models through techniques like gradient descent.

    • The goal is to find the parameters tha

  • Answered by AI
  • Q5. What is entropy.
  • Ans. 

    Entropy is a measure of disorder or randomness in a system.

    • Entropy is used in information theory to quantify the amount of uncertainty involved in predicting the value of a random variable.

    • It is often used in machine learning to measure the impurity or disorder in a dataset.

    • In thermodynamics, entropy is a measure of the amount of energy in a physical system that is not available to do work.

  • Answered by AI
  • Q6. What is ginni coefficient.
  • Ans. 

    Gini coefficient is a measure of statistical dispersion intended to represent the income or wealth distribution of a nation's residents.

    • Gini coefficient ranges from 0 to 1, where 0 represents perfect equality and 1 represents perfect inequality.

    • A Gini coefficient of 0.4 is considered moderate inequality, while 0.6 or higher is considered high inequality.

    • It is commonly used in economics to measure income inequality with...

  • Answered by AI
  • Q7. What will happen if linear regression is used for classification
  • Ans. 

    Using linear regression for classification can lead to inaccurate predictions and unreliable results.

    • Linear regression assumes a continuous output, making it unsuitable for discrete classification tasks.

    • It may not handle outliers well, leading to incorrect classification boundaries.

    • The predicted values may fall outside the 0-1 range for binary classification.

    • Logistic regression is a more appropriate choice for classifi

  • Answered by AI
Round 4 - One-on-one 

(2 Questions)

  • Q1. Pair sum problem in python.Discussion on space time complexity.
  • Q2. Discussion on project.What algorithms used and why.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Aptitude Test 

It was a Normal Aptitude Test, They mainly focused on Arithmetic and Logical Reasoning

Round 2 - Coding Test 

5 questions, 4 were SQL based (easy to advanced - like Trigger, Indexing, Functions etc), 1 was logical (You have 2 variables, swap the variable's data without using 3rd variable, and the last one was Logical Reasoning

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