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Lessons (4)

• Backend Design Scenarios

  … Explain correctness, failure handling and the next scaling limit. Scenario questions 1. [Your cache hit rate is 95 …

• AWS Interview Questions: Clear Answers

  … Choose cache lifetimes and a deployment approach for changed files. Scenario: add private customer orders Now the shop …

• Capacity Planning, SLOs and Error Budgets

  … Load-test peaks and degraded dependency scenarios. Use multi-window budget burn signals to decide when to slow …

• L6 Production Debugging Casebook

  … The scenarios are teaching examples, not claims about a specific production system. 1. A daily 2 PM p99 …