Section 01
Autoscaling & Capacity Management
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Scale on the Right Signal
Hard
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Cold Start During a Flash Crowd
Hard
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Workers Scale, Database Doesn't
Hard
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Capacity Plan for Launch
Hard
Section 02
Observability & Production Diagnostics
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Average Latency Looks Fine
Hard
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Where Did Four Seconds Go?
Hard
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Queue Is Quiet, Customers Aren't
Hard
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Production Diagnostic Challenge
Hard
Section 03
Deployment & Release Architecture
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Release Breaks Everyone
Medium
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Zero-Downtime Version Swap
Medium
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Database Change Without Downtime
Medium
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Feature Launch Without Redeploy
Medium
Section 04
Cost & Architecture Optimization
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The Architecture Costs 2x
Medium
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Storage Bill Never Stops Growing
Medium
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Cross-Region Bill Shock
Medium
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Final Foundation Optimization Challenge
Hard