Cheat Sheet
| Question | Core Idea | Senior Signal |
|---|---|---|
| Q291 | Deployments | Build once, promote artifacts, release progressively, monitor health, and plan rollback beyond code revert. |
| Q292 | AWS frontend | Map static assets to S3/CDN, private work to serverless, light request logic to edge, and secrets outside bundles. |
| Q293-Q294 | Containers | Use Docker for reproducible runtime and Kubernetes only when orchestration is worth the complexity. |
| Q295 | CI/CD | Layer cheap checks, preview deploys, quality gates, release metadata, progressive delivery, and rollback readiness. |