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Lessons (4)

• Safe AWS Deployments with IaC and CI/CD

  … Design a compatible migration and state when it becomes safe to delete the old field. Remember this - IaC …

• Resilience, Disaster Recovery and Multi-Region Design

  … Hours Copy backups to another region; rebuild from IaC after a disaster Lowest Pilot light Tens of minutes …

• Cost Optimization and the Well-Architected Framework

  … excellence Can we run, observe and improve it? IaC, CI/CD, runbooks, small reversible changes Security Is data …

• AWS Interview Questions: Clear Answers

  … safely? Use versioned artifacts, automated tests, a reviewed IaC plan, temporary OIDC credentials, gradual rollout, rollback capability, and …