Kubernetes Interview Questions
9 questions
How do you control the order Argo CD applies resources within a single Application, e.g. making sure a database migration Job completes before the Deployment that depends on it rolls out?
AdvancedArgo CDKubernetes8 min
Your AKS cluster is under CPU pressure and pods are stuck Pending, but the cluster autoscaler isn't adding nodes. How would you troubleshoot it?
AdvancedAzureKubernetesAKS10 min
A team wants zero-downtime deploys with fast rollback for a high-traffic payments API. Would you recommend blue-green or canary deployment, and why?
AdvancedCI/CDKubernetes10 min
An Argo CD application shows OutOfSync even though the pods running in the cluster look correct and healthy. What would you check?
IntermediateArgo CDKubernetesGitOps8 min
A `helm upgrade` gets interrupted (CI job killed, network blip) and now every subsequent `helm upgrade` or `helm rollback` fails with "another operation (install/upgrade/rollback) is in progress". How do you recover?
IntermediateHelmKubernetes8 min
You deploy a new version of a Kubernetes Deployment. The pods show Running and pass their readiness checks, but the Service in front of them stops routing traffic entirely. Where do you look?
IntermediateKubernetes10 min
Your container runs fine locally but repeatedly gets OOMKilled after you deploy it to Kubernetes. How would you investigate it?
IntermediateKubernetesContainers10 min
A pod goes into CrashLoopBackOff immediately after you roll out a ConfigMap change, but only in one namespace. How do you investigate it?
IntermediateKubernetesContainers10 min
Design a self-service CI/CD platform for an engineering org with roughly 100 teams, each owning multiple services, without a central platform team becoming a bottleneck.
ExpertCI/CDKubernetesPlatform Engineering15 min