Design Netflix viewport deduplication
NetflixSoftware Engineer · Technical Screen
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This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Design Netflix viewport deduplication states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Question
Design an algorithm and data structures for Netflix home-page viewport rendering so the first screen (all visible rows and columns) contains no duplicate shows. Explain your approach, trade-offs, and communication strategy.
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