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Home/Questions/System Design/Architecture/What would you do if a critical data pipeline failed during a holiday?

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

System Design/Architectureeasy0.2 min readPremium

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....

🤖 Analyze Your Answer
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.

Why This Question Matters

This easy-level System Design/Architecture question appears frequently in data engineering interviews at companies like Paytm. While less common, it tests deeper understanding that distinguishes strong candidates.

How to Approach This

Start by clearly defining the core concept being asked about. Interviewers want to see that you understand the fundamentals before diving into implementation details. Structure your answer with a definition, then explain the practical application with a concise example.

Expert Answer
38 words

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. Runbooks; on-call rotation; mitigate before perfect fix.

The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations covering performance optimization and real-world examples.

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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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