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CKA Practice Questions

Question # 1

Check to see how many worker nodes are ready (not including nodes tainted NoSchedule) and write the number to /opt/KUCC00104/kucc00104.txt.





Question # 2

Score: 4%


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




Answer: See the solution below.
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon ek8s-node-1
kubectl drain ek8s-node-1 -delete-local-data -ignore-daemonsets -force


Question # 3

Get list of all pods in all namespaces and write it to file “/opt/pods-list.yaml”




Answer: See the solution below.
Explanation:
kubectl get po –all-namespaces > /opt/pods-list.yaml


Question # 4

List all persistent volumes sorted by capacity, saving the full kubectl output to
/opt/KUCC00102/volume_list. Use kubectl 's own functionality for sorting the output, and do not manipulate it any further.





Question # 5

A Kubernetes worker node, namedwk8s-node-0is in stateNotReady.Investigate why this is
the case, andperform any appropriate steps tobring the node to aReadystate,ensuring that
any changes are madepermanent.
You cansshto the failednode using:
[student@node-1] $ | sshWk8s-node-0
You can assume elevatedprivileges on the node with thefollowing command:
[student@w8ks-node-0] $ |sudo –i





Question # 6

Score:7%

Task
Create a new PersistentVolumeClaim

• Name: pv-volume
• Class: csi-hostpath-sc
• Capacity: 10Mi

Create a new Pod which mounts the PersistentVolumeClaim as a volume:

• Name: web-server
• Image: nginx
• Mount path: /usr/share/nginx/html

Configure the new Pod to have ReadWriteOnce access on the volume. Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.




Answer: See the solution below.
Explanation:
Solution:
vi pvc.yaml
storageclass pvc
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pv-volume
spec:
accessModes:
- ReadWriteOnce
volumeMode: Filesystem
resources:
requests:
storage: 10Mi
storageClassName: csi-hostpath-sc
# vi pod-pvc.yaml
apiVersion: v1
kind: Pod
metadata:
name: web-server
spec:
containers:
- name: web-server
image: nginx
volumeMounts:
- mountPath: "/usr/share/nginx/html"
name: my-volume
volumes:
- name: my-volume
persistentVolumeClaim:
claimName: pv-volume
# craete
kubectl create -f pod-pvc.yaml
#edit
kubectl edit pvc pv-volume -record


Question # 7

Monitor the logs of pod foo and:
Extract log lines correspondingto error
unable-to-access-website
Write them to/opt/KULM00201/foo





Question # 8

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

Answer: See the solution below.
Explanation:
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"


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Linux Foundation CKA Exam Dumps

Exam Name: Certified Kubernetes Administrator (CKA) Program
Certification Name: Kubernetes Administrator

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  • Total Questions: 67
  • Last Updation Date: 22-Nov-2024

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