Free Practice Questions for Linux Foundation CKA Exam

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Total 83 questions

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Question 1

Create a pod with image nginx called nginx and allow traffic on port 80

AExplanation:
kubectl run nginx --image=nginx --restart=Never --port=80

Answer : A

Question 2

Create a busybox pod that runs the command ''env'' and save the output to ''envpod'' file

AExplanation:
kubectl run busybox --image=busybox --restart=Never ---rm -it -- env > envpod.yaml

Answer : A

Question 3

List pod logs named ''frontend'' and search for the pattern ''started'' and write it to a file ''/opt/error-logs''

AExplanation:
Kubectl logs frontend | grep -i ''started'' > /opt/error-logs

Answer : A

Question 4

Create a pod that echo ''hello world'' and then exists. Have the pod deleted automatically when it's completed

AExplanation:
kubectl run busybox --image=busybox -it --rm --restart=Never --
/bin/sh -c 'echo hello world'
kubectl get po # You shouldn't see pod with the name 'busybox'

Answer : A

Question 5

Create 2 nginx image pods in which one of them is labelled with env=prod and another one labelled with env=dev and verify the same.

AExplanation:
kubectl run --generator=run-pod/v1 --image=nginx -- labels=env=prod nginx-prod --dry-run -o yaml > nginx-prodpod.yaml Now, edit nginx-prod-pod.yaml file and remove entries like ''creationTimestamp: null'' ''dnsPolicy: ClusterFirst''
vim nginx-prod-pod.yaml
apiVersion: v1
kind: Pod
metadata:
labels:
env: prod
name: nginx-prod
spec:
containers:
- image: nginx
name: nginx-prod
restartPolicy: Always
# kubectl create -f nginx-prod-pod.yaml
kubectl run --generator=run-pod/v1 --image=nginx --
labels=env=dev nginx-dev --dry-run -o yaml > nginx-dev-pod.yaml
apiVersion: v1
kind: Pod
metadata:
labels:
env: dev
name: nginx-dev
spec:
containers:
- image: nginx
name: nginx-dev
restartPolicy: Always
# kubectl create -f nginx-prod-dev.yaml
Verify :
kubectl get po --show-labels
kubectl get po -l env=prod
kubectl get po -l env=dev

Answer : A