Linux Foundation CKA Certified Kubernetes Administrator Exam Practice Test

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Total 67 questions

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Question 1

Score: 5%

Task

From the pod label name=cpu-utilizer, find pods running high CPU workloads and write the name of the pod consuming most CPU to the file /opt/KUTR00401/KUTR00401.txt (which already exists).

AExplanation:
Solution:
kubectl top -l name=cpu-user -A
echo 'pod name' >> /opt/KUT00401/KUT00401.txt

Answer : A

Question 2

Score: 4%

Task

Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.

AExplanation:
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon ek8s-node-1
kubectl drain ek8s-node-1 --delete-local-data --ignore-daemonsets --force

Answer : A

Question 3

Score: 4%

Context

You have been asked to create a new ClusterRole for a deployment pipeline and bind it to a specific ServiceAccount scoped to a specific namespace.

Task

Create a new ClusterRole named deployment-clusterrole, which only allows to create the following resource types:

* Deployment

* StatefulSet

* DaemonSet

Create a new ServiceAccount named cicd-token in the existing namespace app-team1.

Bind the new ClusterRole deployment-clusterrole lo the new ServiceAccount cicd-token , limited to the namespace app-team1.

AExplanation:
Solution:
Task should be complete on node k8s -1 master, 2 worker for this connect use command
[student@node-1] > ssh k8s
kubectl create clusterrole deployment-clusterrole --verb=create --resource=deployments,statefulsets,daemonsets
kubectl create serviceaccount cicd-token --namespace=app-team1
kubectl create rolebinding deployment-clusterrole --clusterrole=deployment-clusterrole --serviceaccount=default:cicd-token --namespace=app-team1

Answer : A

Question 4

List the nginx pod with custom columns POD_NAME and POD_STATUS

AExplanation:
kubectl get po -o=custom-columns='POD_NAME:.metadata.name,
POD_STATUS:.status.containerStatuses[].state'

Answer : A

Question 5

Print pod name and start time to ''/opt/pod-status'' file

AExplanation:
kubect1 get pods -o=jsonpath='{range
.items[*]}{.metadata.name}{'\t'}{.status.podIP}{'\n'}{end}'

Answer : A

Question 6

List the nginx pod with custom columns POD_NAME and POD_STATUS

AExplanation:
kubectl get po -o=custom-columns='POD_NAME:.metadata.name,
POD_STATUS:.status.containerStatuses[].state'

Answer : A

Question 7

Create a snapshot of the etcd instance running at https://127.0.0.1:2379, saving the snapshot to the file path /srv/data/etcd-snapshot.db.

The following TLS certificates/key are supplied for connecting to the server with etcdctl:

CA certificate: /opt/KUCM00302/ca.crt

Client certificate: /opt/KUCM00302/etcd-client.crt

Client key: Topt/KUCM00302/etcd-client.key

AExplanation:
solution

Answer : A