DXC Technology
American multinational B2B IT services provider.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Scientist
•
Technical
•
medium
Explain the difference between Random Forest and Gradient Boosting. In what scenario would you choose one over the other for a client's predictive model?
#Ensemble Methods
#Random Forest
#XGBoost
#Model Selection
Data Scientist
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Technical
•
medium
We often work with clients in the financial sector. How would you handle a highly imbalanced dataset for a credit card fraud detection model?
#Imbalanced Data
#SMOTE
#Class Weights
#Fraud Detection
Data Scientist
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Technical
•
easy
Explain the Bias-Variance tradeoff. How does regularizing a model affect its bias and variance?
#Model Evaluation
#Regularization
#Statistical Theory
Data Scientist
•
Technical
•
medium
What is the mathematical difference between L1 (Lasso) and L2 (Ridge) regularization? When would you use L1 over L2?
#Regularization
#Linear Models
#Feature Selection
Data Scientist
•
Technical
•
medium
Explain the kernel trick in Support Vector Machines (SVM). Name two common kernels and when you would use them.
#SVM
#Algorithms
#Math
Difficulty Radar
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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