Kubernetes Container Orchestration CI/CD Integration 2

Question 1

Which Kubernetes resource is most commonly used to perform a rolling update in a CI/CD pipeline without downtime?

Accepted Answer

Deployment

Answer

Deployments support rolling updates by gradually replacing old Pods with new ones, enabling zero-downtime releases in CI/CD pipelines.

Question 2

In a GitOps workflow using ArgoCD, what triggers a sync to the cluster?

Accepted Answer

A change committed to the Git repository

Answer

ArgoCD monitors a Git repository and syncs the cluster state when it detects a change in the desired state stored in Git.

Question 3

What is the purpose of a Kubernetes ImagePullPolicy set to 'Always' in a CI/CD pipeline?

Accepted Answer

To force the kubelet to pull the image from the registry on every Pod start

Answer

ImagePullPolicy: Always ensures the latest version of a mutable image tag (like 'latest') is always pulled, which is useful in fast-moving CI/CD environments.

Question 4

Which kubectl command performs a declarative rollout of a new container image version in a Deployment?

Accepted Answer

kubectl set image deployment/my-app container=image:v2

Answer

kubectl set image updates the container image in a Deployment, triggering a rolling update automatically.

Question 5

A CI pipeline needs to run integration tests against a freshly deployed app in Kubernetes. Which approach best isolates each test run?

Accepted Answer

Deploy to a dedicated ephemeral namespace per pipeline run and delete it after

Answer

Ephemeral namespaces provide complete isolation per pipeline run, preventing test interference and enabling parallel pipelines safely.

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration CI/CD Integration 2