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Updated weekly · Last refresh Sep 13

Top 50 streaming Interview Questions

The most frequently asked streaming questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions
~8htotal time
42companies covered
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1
CodingStart here. 21 questions + 1 drill · ~212 min
Design a Streaming AI Text UIMedium
Practice
Recently asked

Model submitted prompts and streamed AI response chunks with a small deterministic state machine.

streamingapi integrationCodingOpenAI
Anomaly Detection with Rolling WindowsHard
Practice

Detect transaction indices whose values exceed a rolling sample-standard-deviation threshold using an O(n) sliding window.

streamingaggregationfrequency countUpstart
Stream Pattern and Anomaly DetectionMedium
Practice

Use per-IP sliding windows to detect repeated failed logins in Coalition security event streams.

streamingdata processingCoalition
Stream Pattern Detection FunctionMedium
Practice

Find every occurrence of a token pattern in a large event stream using KMP without materializing the stream.

streamingdata processingNuna
Detect Anomalies in StreamsHard

Tests your ability to design streaming anomaly detection algorithms with attention to performance constraints.

streamingAlgorithmsPindrop
Average of Last N StreamHard
Recently asked

Tests your ability to design an efficient streaming algorithm with correct state management.

streamingMongoDB
LeetCode SQL PracticeEasy
Practice
Recently asked
Practice drill

Count unique normalized KPIT portal emails using PostgreSQL string functions and COUNT(DISTINCT).

Codingdata processingKaiser PermanenteKpit
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2
Pipelines8 questions · ~77 min
Batch vs Streaming Model EvaluationMedium

Compare batch and streaming pipeline designs for model evaluation, including freshness, cost, correctness, and operational trade-offs.

streamingBatch ProcessingModel EvaluationAnthropicGoogle DeepMindSmartsheet
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3
System Design15 questions · ~144 min
Design Sparse Vector and StreamingHard
Recently asked

Tests algorithmic design for sparse data and ability to tackle multiple problem patterns.

streamingNuro
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4
Strategy3 questions · ~29 min
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5
More topics3 questions · ~29 min
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.