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Design a personal file backup service that allows users to automatically detect and upload changed files, browse their backed-up data, and restore files including previous versions. The system should scale to millions of users while ensuring security, cost efficiency, and data durability.
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Hello Interview · 1 record
Google
Design a personal file backup service
Reported Sep 1, 2026 · 3 source reports
MANAGER, SENIOR
Source snapshot: Nov 12, 2026
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