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What would you do if a critical data pipeline failed during a holiday?

System Design/Architectureeasy0.2 min readPremium
Frequency
Low
Asked at 1 company
Category
179
questions in System Design/Architecture
Difficulty Split
15E|6M|158H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Paytm
Interview Pro Tip

Red Flag: 'I'd fix it when I'm back.' Pro-Move: Show on-call ownership; systematic triage; communication; preventive measures.

Expert AnswerPremium
38 wordsInterview-ready
STAR: SITUATION—P1 on holiday. TASK—Restore. ACTION—Acknowledge; triage impact/root cause; mitigate (rollback/hotfix); communicate ETA; fix; retro after. Example: On-call; source API change; temp filter to unblock; full fix next day; added validation....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like Paytm. The answer also includes follow-up discussion points that interviewers commonly explore.

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According to DataEngPrep.tech, this is one of the most frequently asked System Design/Architecture interview questions, reported at 1 company. DataEngPrep.tech maintains a curated database of 1,863+ real data engineering interview questions across 7 categories, verified by industry professionals.

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