Exam Therapy: Data Preprocessing vs Feature Engineering (and the Sneaky Ways They Wreck Your Score)

Andrew and Ava untangle ETL vs ELT, why training/inference pipelines must match, and how feature leakage quietly inflates metrics—and fails exams.

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Hosted byAndrew & Ava
February 20, 2026
10m 55s
AWS Certified AI Practitioner (AIF-C01) Practice Questions
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