Wabtec Senior Data Scientist Interview Questions and Answers

Q1. Introduction Questions related to c programming like structures, data types, size of structure. Inputs and deliverables of V model. Technical questions related to testing like statement coverage, branch an...read more
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Q1. Salary discussions and joining date
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Q1. UDS protocols and NRCs, DCM configuration
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Q1. Why Continental
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Q1. Find lowest and highest number in an array. Optimize the code
Ans. 
Find lowest and highest number in an array efficiently
• Use a loop to iterate through the array and keep track of the lowest and highest numbers

• Initialize variables for lowest and highest numbers with the first element of the array

• Compare each element with the current lowest and highest numbers and update accordingly
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Q1. What is data drift and do you have any experience in model lifecycle management?
Ans. 
Data drift is the concept of data changing over time, affecting the performance of machine learning models. Model lifecycle management involves monitoring and updating models to maintain accuracy.
• Data drift refers to the phenomenon where the statistical properties of the target variable change over time, leading to a decrease in model performance.

• Examples of data drift include changes in customer behavior, shifts in ma...read more
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Q1. Deep Dive into Power Bi projects Basic Sql queries Python certification if any Explain the projects with deep dive into analytics
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Basic qaunts, logical, excel

Q1. Sql, excel, tableau questions
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Q1. About yourself in detail
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Q2. Hr related questions, salary expectation, stregth, weakness,
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Coding was fully based on python.
First they told me to on the laptop camera because it was a virtual interview and then they told me to share my screen
1. Starting from self introduction
2. Summarise my project in 2 minutes
3. Then he ask back to back 5-6 python.
questions and I have to write in vs
code ( on shared screen) ,I have to
write the code and then execute it.
They asked. few side questions like
from html and sql.
4. Total duration of interview is 30
minutes

Q1. These is based on communication, salary discussion, responsibilities and work culture.
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Q2. 1. He asked about cap between degree and job 2. Strength and can I work under pressure. 3. How can I manage if I assigned more than 1 project at a time
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