Tech Screening

Target leakage

A churn feature is populated after cancellation. Explain why that is leakage and how you would rebuild the dataset safely.

What this task practices

Target leakage is a tech screening interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as easy difficulty. It focuses on Debugging, Validation, Technical Reasoning. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.