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Explore questions associated with Roku. Review the source details, then use the workspace for code, notes, and diagrams.
6 questions in the library. A source association does not guarantee a future interview question.
Coding · Machine learning · Object-oriented design · System design
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Algorithm trade-offs (fixed window, sliding log, sliding counter, token bucket), placement, distributed atomic counting, failure modes.
Companies: Roku, Amazon, Anthropic, Apple +14
api-gateway · atomicity · Concurrency · Consistency & Availability
Last reported Sep 2026
Design a grocery subscription service that allows users to create recurring subscriptions and automatically converts these subscriptions to orders based on user wallet balance…
Companies: Roku
Last reported Jul 2026
Wrap an existing iterator to add a peek() operation that returns the next element without advancing the iterator, while preserving correct behavior for next() and…
Companies: Roku
Last reported May 2026
Design a system that tracks and manages view counts at a per-video level, handling high volumes of concurrent views and providing accurate, real-time view count…
Companies: Roku
Last reported Apr 2026
Implement an LRUCache that supports O(1) average-time get(key) returning the value or -1 and put(key, value) which inserts or updates a key and, if capacity…
Companies: Roku, Adobe, Amazon, Anthropic +29
Data Structure Design · Design · Doubly-Linked List · Hash Table
Last reported Feb 2026