ISTQB Certified Tester: AI Testing Practice Mode

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B0

  - Data leakage occurs when information that would not be available at prediction time leaks into training — for example, a feature derived from the target, or test-set statistics being used in feature engineering on the training set. It causes inflated training/validation metrics that collapse in production. The other options describe security breaches or infrastructure issues, not the ML concept.