Design a News Feed – Feedback

Self-Checklist

• Did I clarify scale and constraints?
• Did I name pull vs push and explain the trade-off?
• Did I mention caching and scaling strategy?
• Did I handle at least one "what if" follow-up?

What to Improve

• Add monitoring and SLOs
• Discuss failure modes (DB down, cache stampede)
• Consider A/B testing and ranking signals

Inline Check 1

What should you add when discussing a production-ready feed system?

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