Design and implement a cloud storage system using object-oriented design principles. The assessment is structured as 4 sequential levels of progressive difficulty, where each level must be fully completed to unlock the next. The OA is time-limited to 1.5 hours and is administered via CodeSignal.
What passers do: Candidates who had completed a similar CodeSignal OOD OA (e.g., Instacart) within 6 months had their scores transferred automatically, bypassing the need to redo the assessment
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