A hard Data Modeling interview practice problem on DataDriven. Write and execute real data modeling code with instant grading.

Domain

Data Modeling

Difficulty

hard

Seniority

L6

Problem

We run a cloud file storage platform. Users upload files from multiple devices, organize them into folders, and share files with other users. We need to model the metadata for analytics: upload volume, storage consumption per user, sharing behavior, and quota enforcement. Design the data model.

Summary

A file is also a folder. A folder is also a file.

Practice This Problem

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