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Interview questions · hard
Implement a rate-limiter to control API requests per user.
What techniques would you use to ensure data consistency in a distributed database?
Design an algorithm to merge k sorted lists of video streaming data.
Optimize a function to calculate moving averages of user engagement.
Write a function to detect anomalies in streaming data using a sliding window.
Discuss a project where you significantly improved the performance of a data pipeline.
Compare Kafka and RabbitMQ for real-time message processing in a streaming platform.
Explain the benefits of using columnar storage formats like Parquet or ORC.
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