Predictive / AI-Driven Analytics Practice Questions
Choosing Between XGBoost and LightGBM
Decide which gradient-boosted tree library fits your data and constraints. Compare speed, memory,…
Vector Databases & Retrieval-Augmented Models
Check your understanding of retrieval building blocks behind modern RAG systems. From indexing to…
Causal Inference vs. Pure Prediction
Decide when correlation is not enough and where counterfactual thinking is required. Test your grasp…
Uplift Modeling for Targeted Campaigns
Turn campaigns from broad blasts into precise, incremental impact machines. Check how well you can…
Forecast Accuracy Metrics: MAPE, RMSE, MASE
Pick and interpret accuracy metrics that fit the demand pattern and business risk. See if you can…
Survival Analysis for Customer Churn
Explore how time-to-event modeling predicts when customers churn. Master key ideas like hazard,…
Lift & Gain Charts: Measuring Model Uplift
Test your ability to read and validate lift and cumulative gain charts. Learn what early decile…
Data Imputation Techniques for Predictive Models
Assess when and how to fill in missing data without biasing models. Compare simple and model-based…
Crafting a Robust Validation Strategy
Choose the right split so your offline metrics predict real‑world performance. Learn how to match…
Real-Time Scoring with Streaming Data
Serve low‑latency predictions without sacrificing quality. Explore streaming patterns, stateful…
