AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
Delta Air Lines Data Scientist Interview Questions and Answers
Delta Air Lines Data Scientist Interview Experiences
1 interview found
Anonymous
I applied via Recruitment Consulltant and was interviewed in Aug 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Explain how did you handle the imbalance in data
- Ans.
I handled data imbalance by using techniques like oversampling, undersampling, SMOTE, or using ensemble methods.
Used oversampling to increase minority class instances
Used undersampling to decrease majority class instances
Applied SMOTE (Synthetic Minority Over-sampling Technique) to generate synthetic samples for minority class
Utilized ensemble methods like Random Forest or Gradient Boosting to handle imbalance
- Q2. Write a sql query for the given problem statement. Can be solved using advanced concepts like lead and lag
Advanced sql and basics of data science
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.
(5 Questions)
- Q1. Picks one of the Projects to discuss the structure and methodology.
- Q2. Reverse a String
- Ans.
Reverse a given string
Use built-in functions like reverse() or slice() in Python
Iterate through the string in reverse order and append characters to a new string
Convert the string to an array of characters, reverse the array, and join it back into a string
- Q3. Basic ML Questions about Resume Projects
- Q4. What is Regularization?
- Ans.
Regularization is a technique used to prevent overfitting in machine learning models by adding a penalty term to the loss function.
Regularization helps to reduce the complexity of the model by penalizing large coefficients.
It adds a penalty term to the loss function, such as L1 (Lasso) or L2 (Ridge) regularization.
Regularization helps to improve the generalization of the model by discouraging overfitting.
Examples of re...
- Q5. Basics about Forescasting.
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed in Feb 2024. There were 3 interview rounds.
Hackerank Assignment
(1 Question)
- Q1. Coding and ML questions
(1 Question)
- Q1. About projects and questions related to that
I applied via Approached by Company and was interviewed in Mar 2022. There were 3 interview rounds.
(1 Question)
- Q1. What kind of project you have done give some brief. How you will avoid over fiting to model. How will you handle missing data points in a data frame. Why you want to join our company.
(1 Question)
- Q1. Behavioral question was asked by manager.
(1 Question)
- Q1. CTC discussion was done
Interview Preparation Tips
I applied via Walk-in and was interviewed in Mar 2024. There were 2 interview rounds.
Basic coding questions
(3 Questions)
- Q1. Explain in detail about current project? Reason for choosing the algorithm, evaluation metrics and analysis of data
- Ans.
Developed a predictive model for customer churn using logistic regression
Chose logistic regression for its interpretability and ability to handle binary outcomes
Evaluated model performance using accuracy, precision, recall, and F1 score
Analyzed customer data including demographics, purchase history, and customer service interactions
- Q2. Python and sql coding questions - basic
- Q3. Linear regression, xgboost, precision, recall, F1 Score,Correlation
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
(1 Question)
- Q1. Basics of linear regression
(1 Question)
- Q1. Machine learning in depth
I applied via Company Website and was interviewed in Oct 2019. There were 6 interview rounds.
Interview Questionnaire
4 Questions
- Q1. How does IC engines work ?
- Ans.
IC engines work by converting fuel into mechanical energy through combustion within the engine.
Fuel is mixed with air and ignited in the combustion chamber
The resulting explosion pushes a piston, which turns a crankshaft
The crankshaft converts the linear motion of the piston into rotational motion
The rotational motion is used to power the vehicle or machinery
Examples include gasoline engines, diesel engines, and natura
- Q2. How do you think aircraft engine works ?
- Ans.
Aircraft engines work by sucking in air, compressing it, adding fuel, igniting it, and expelling the exhaust gases to create thrust.
Air is sucked in through the front of the engine by the fan blades
The compressor squeezes the air to increase its pressure
Fuel is added and ignited in the combustion chamber
The hot exhaust gases are expelled out the back of the engine, creating thrust
Different types of engines include turb
- Q3. Many behavioural question
- Q4. Question on Excel
Interview Preparation Tips
I appeared for an interview in Nov 2020.
Interview Questionnaire
1 Question
- Q1. Job profile Question. Managerial skill question. Basic Engineering question.
Interview Preparation Tips
Application software know how knowledge.
Kishan Singh
I appeared for an interview in Feb 2025.
Data analysis , SQL, python, ML
Excellent performance
(2 Questions)
- Q1. Tell me about your self
- Q2. Are you comfortable to position
Python, sql were asked, 1st round was resume based round
Delta Air Lines Interview FAQs
Tell us how to improve this page.
Delta Air Lines Interviews By Designations
- Delta Air Lines Data Scientist Interview Questions
- Delta Air Lines Senior Engineer Interview Questions
- Delta Air Lines SDE-2 Interview Questions
- Delta Air Lines Data Analyst Interview Questions
- Delta Air Lines Software Developer Interview Questions
- Delta Air Lines UX Lead Interview Questions
- Delta Air Lines Senior Software Engineer Interview Questions
- Delta Air Lines Junior Officer Interview Questions
- Show more
Interview Questions for Popular Designations
- Senior Data Scientist Interview Questions
- Decision Scientist Interview Questions
- Jr. Data Scientist Interview Questions
- Associate Data Scientist Interview Questions
- Data Scientist Intern Interview Questions
- Lead Data Scientist Interview Questions
- Trainee Decision Scientist Interview Questions
- Research Scientist Interview Questions
- Show more
Delta Air Lines Data Scientist Interview Process
based on 1 interview
Interview experience
Interview Questions from Similar Companies
|
Senior Developer
40
salaries
|  ₹16 L/yr - ₹39 L/yr |
|
Lead Developer
40
salaries
| ₹27 L/yr - ₹54 L/yr |
|
Senior Software Engineer
34
salaries
| ₹22 L/yr - ₹37 L/yr |
|
Software Developer
25
salaries
| ₹12 L/yr - ₹24 L/yr |
|
Lead Engineer
18
salaries
| ₹33.7 L/yr - ₹70 L/yr |
InterGlobe Aviation
Air India
Spicejet
Air India Sats Airport Services
- Home >
- Interviews >
- Delta Air Lines Interview Questions >
- Delta Air Lines Data Scientist Interview Questions
