Certified Kubernetes Application Developer (CKAD-style) — Practice

Les questions du quiz

1. 1. Which kubectl command imperatively creates a Deployment named web from image nginx:1.27?
   1. kubectl run web --image=nginx:1.27
   2. kubectl create deployment web --image=nginx:1.27
   3. kubectl apply deployment web nginx:1.27
   4. kubectl deploy web nginx:1.27
2. 2. Which probe determines whether a container should receive traffic from a Service?
   1. livenessProbe
   2. readinessProbe
   3. startupProbe
   4. shutdownProbe
3. 3. What does a ClusterIP Service expose?
   1. A pod on a NodePort
   2. An internal cluster-only virtual IP that load-balances across Pod replicas
   3. A public load balancer in the cloud
   4. An ingress hostname
4. 4. How do you mount a ConfigMap named app-config as files at /etc/config in a Pod?
   1. Use an env block referencing the ConfigMap
   2. Add a volumes: entry with configMap: name: app-config and mount it via volumeMounts
   3. Add it to the image
   4. It's not possible
5. 5. Which field on a Pod ensures a container restarts if its main process exits with a non-zero status?
   1. restartPolicy: Always (the default for Deployments/ReplicaSets)
   2. shutdownGracePeriod
   3. preStop hook
   4. imagePullPolicy: Always
6. 6. Which kubectl command shows logs from a previously crashed container in a Pod?
   1. kubectl logs
   2. kubectl logs --previous
   3. kubectl describe pod
   4. kubectl get events
7. 7. How do you scale a Deployment named api to 5 replicas?
   1. kubectl scale deployment api --replicas=5
   2. kubectl expand api 5
   3. kubectl edit deploy api
   4. kubectl rollout 5
8. 8. What is the role of a Kubernetes Job resource?
   1. Schedule a CronJob
   2. Run one or more Pods to completion, retrying on failure
   3. Manage stateful workloads
   4. Expose a service to the internet
9. 9. Which field limits the maximum CPU a container may use?
   1. resources.requests.cpu
   2. resources.limits.cpu
   3. spec.cpu
   4. containers.cpu.max
10. 10. Which kubectl command shows the rollout history of a Deployment?
    1. kubectl rollout history deployment/
    2. kubectl history
    3. kubectl describe rollout
    4. kubectl get rollouts
11. 11. Which secret type is intended for storing TLS certificates and private keys?
    1. Opaque
    2. kubernetes.io/tls
    3. kubernetes.io/dockerconfigjson
    4. kubernetes.io/service-account-token
12. 12. What does kubectl apply -f manifest.yaml do that kubectl create -f manifest.yaml does not?
    1. Validates YAML
    2. Performs a declarative update, computing a 3-way merge against the live state
    3. Creates a new namespace
    4. Restarts pods