The Silent Pipeline

A medium AI Coding interview practice problem on DataDriven. Write and execute real ai coding code with instant grading.

Domain

AI Coding

Difficulty

medium

Seniority

L5

Problem

Last week the upstream booking_events feed broke for 3 days, so fct_bookings emerged empty each morning. Our data-quality suite reported all expectations passing. The on-call only caught it when finance asked why the dashboard was flat. Run tests/test_quality_suite.py to reproduce. Fix the suite (in dq/expectations.py) so an empty input table fails LOUDLY instead of vacuously passing every row-level check.

Summary

Silence, mistaken for success.

Practice This Problem

Solve this AI Coding problem with real code execution. DataDriven runs your solution and grades it automatically.