Hard DevOps Engineer questions

32 questions · 20 points each for a correct first answer.

1. 1.Container ignores SIGTERMdocker, kubernetes, graceful-shutdownhard
2. 2.Removing an item from a count listterraform, infrastructure-as-codehard
3. 3.Rolling update that never finisheskubernetes, deployment-strategieshard
4. 4.Hotfix keeps disappearinggitops, kubernetes, incident-responsehard
5. 5.Renaming a column with zero downtimedatabase-migrations, deployment-strategieshard
6. 6.Same tag, different imagecontainer-security, supply-chain-securityhard
7. 7.Errors during every rolloutkubernetes, graceful-shutdownhard
8. 8.Risky GitHub Actions triggerci-cd, devsecops, supply-chain-securityhard
9. 9.Throttled at 30 percent CPUkubernetes, performance, resource-managementhard
10. 10.Slow external DNS in Podskubernetes, dns, performancehard
11. 11.Provider checksum mismatch in CIterraform, supply-chain-securityhard
12. 12.One huge Terraform stateterraform, infrastructure-as-code, architecturehard
13. 13.Refactoring into a module safelyterraform, infrastructure-as-codehard
14. 14.Secrets in a GitOps repogitops, secrets-management, argo-cdhard
15. 15.Running migrations before rollout in Argo CDargo-cd, gitops, database-migrationshard
16. 16.StatefulSet Pod pending after node replacementkubernetes, storagehard
17. 17.Java Pod OOMKilled with free heapkubernetes, performance, troubleshootinghard
18. 18.Canary on a low-traffic servicedeployment-strategies, observabilityhard
19. 19.Only deploy images built by CIsupply-chain-security, devsecops, kuberneteshard
20. 20.Policy webhook takes down deployskubernetes, devsecops, reliabilityhard
21. 21.Alert silent when the service diesprometheus, observability, on-callhard
22. 22.SLO burn-rate alertingsre, observability, on-callhard
23. 23.Logging bill tripledobservability, cost-optimizationhard
24. 24.Huge NAT gateway chargesaws, cost-optimization, networkinghard
25. 25.Running workloads on spotcost-optimization, kubernetes, reliabilityhard
26. 26.First move in a post-deploy outageincident-response, deployment-strategieshard
27. 27.Outage that will not endreliability, incident-response, architecturehard
28. 28.All replicas landed in one zonekubernetes, reliabilityhard
29. 29.PR stuck waiting for a required checkgithub-actions, ci-cd, monorepohard
30. 30.set -e does not stop the scriptshell-scripting, ci-cdhard
31. 31.Deleted secret still in the imagedocker, container-security, secrets-managementhard
32. 32.App fails every hour on DB authvault, secrets-management, troubleshootinghard