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What data storage would you use for real-time analytics? Why?

Behavioralhard0.2 min readPremium
Frequency
Low
Asked at 1 company
Category
144
questions in Behavioral
Difficulty Split
100E|18M|26H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Fragma Data Systems
Expert AnswerPremium
43 wordsInterview-ready
Situation: Real-time analytics requirement. Task: Recommend with rationale. Action: Why: sub-second queries, append-friendly, scale. Options: Kafka/Kinesis (ingestion), Druid/ClickHouse (OLAP), Flink+store. Trade-offs: Druid for time-series; ClickHouse for ad-hoc; cost scales with retention. Choose by query pattern and budget....
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