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How To Pass Linux Foundation CKA Exam On First Attempt

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Linux Foundation CKA (Certified Kubernetes Administrator) Program Exam is a certification exam designed to test the skills and knowledge of professionals working with Kubernetes. CKA exam is designed to assess a candidate's ability to deploy, configure, and manage Kubernetes clusters. Certified Kubernetes Administrator (CKA) Program Exam certification is globally recognized and is considered a valuable credential for IT professionals.

The CKA Certification Exam is designed to test the candidate's knowledge and expertise in deploying, managing, and troubleshooting Kubernetes applications. It is a performance-based exam that evaluates the candidate's ability to perform tasks on a live Kubernetes cluster. This ensures that the certification is a true reflection of the candidate's practical skills and not just theoretical knowledge.

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q48-Q53):

NEW QUESTION # 48
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a state, ensuring that any changes are made permanent.
You can ssh to the failed node using:
[student@node-1] $ | ssh Wk8s-node-0
You can assume elevated privileges on the node with the following command:
[student@w8ks-node-0] $ | sudo -i

Answer:

Explanation:
See the solution below.
Explanation
solution
F:WorkData Entry WorkData Entry‚00827CKA C.JPG

F:WorkData Entry WorkData Entry‚00827CKA D.JPG

F:WorkData Entry WorkData Entry‚00827CKA E.JPG

 

NEW QUESTION # 49
Create a configmap called myconfigmap with literal value
appname=myapp

• A. kubectl create cm myconfigmap --from-literal=appname=myapp
  // Verify
  kubectl get cm -o yaml
  (or)
  kubectl describe cm
• B. kubectl create cm myconfigmap --from-literal=appname=myapp
  // Verify
  (or)
  kubectl describe cm

Answer: A

 

NEW QUESTION # 50
Create a deployment as follows:
* Name: nginx-random
* Exposed via a service nginx-random
* Ensure that the service and pod are accessible via their respective DNS records
* The container(s) within any pod(s) running as a part of this deployment should use the nginx Image Next, use the utility nslookup to look up the DNS records of the service and pod and write the output to /opt
/KUNW00601/service.dns and /opt/KUNW00601/pod.dns respectively.

Answer:

Explanation:
Solution:

 

NEW QUESTION # 51
Create a persistent volume with nameapp-data, of capacity2Giandaccess modeReadWriteMany. Thetype of volume ishostPathand itslocation is/srv/app-data.

Answer:

Explanation:
See the solution below.
Explanation
solution
Persistent Volume
A persistent volume is a piece of storage in aKubernetes cluster. PersistentVolumes are a cluster-level resource like nodes, which don't belong to any namespace. It is provisioned by the administrator and has a particular file size. This way, a developer deploying their app on Kubernetes need not knowthe underlying infrastructure.
When the developer needs a certain amount of persistent storage for their application, the system administrator configures the cluster so that they consume the PersistentVolume provisioned in an easy way.
Creating PersistentVolume
kind: PersistentVolumeapiVersion: v1metadata:name:app-dataspec:capacity: # defines the capacity of PV we are creatingstorage:2Gi#the amount of storage we are tying to claimaccessModes: # defines the rights of the volumewe are creating-ReadWriteManyhostPath:path: "/srv/app-data" # path to which we are creating the volume Challenge
* Create a Persistent Volume named ReadWriteMany, storage classname
shared,2Giof storage capacity and the host path

2. Save the file and create the persistent volume.
Image for post

3. View the persistent volume.

* Our persistent volume status is available meaning it is available and it has not been mounted yet. This status willchange when we mount the persistentVolume to a persistentVolumeClaim.
PersistentVolumeClaim
In a real ecosystem, a system admin will create the PersistentVolume then a developer will create a PersistentVolumeClaim which will be referenced in a pod. A PersistentVolumeClaim is created by specifying the minimum size and the access mode they require from the persistentVolume.
Challenge
* Create a Persistent Volume Claim that requests the Persistent Volume we had created above. The claim should request 2Gi. Ensurethat the Persistent Volume Claim has the same storageClassName as the persistentVolume you had previously created.
kind: PersistentVolumeapiVersion: v1metadata:name:
spec:
accessModes:-ReadWriteManyresources:
requests:storage:2Gi
storageClassName:shared
2. Save and create the pvc
njerry191@cloudshell:~(extreme-clone-2654111)$ kubect1 create -f app-data.yaml persistentvolumeclaim/app-data created
3. View the pvc
Image for post

4. Let's see what has changed in the pv we had initially created.
Image for post

Our status has now changed fromavailabletobound.
5. Create a new pod named myapp with image nginx that will be used to Mount the Persistent Volume Claim with the path /var/app/config.
Mounting a Claim
apiVersion: v1kind: Podmetadata:creationTimestamp: nullname: app-dataspec:volumes:- name:congigpvcpersistenVolumeClaim:claimName: app-datacontainers:- image: nginxname:
appvolumeMounts:- mountPath: "

 

NEW QUESTION # 52
Create a deployment as follows:
Name: nginx-app
Using container nginx with version 1.11.10-alpine
The deployment should contain 3 replicas
Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update.
Finally, rollback that update to the previous version 1.11.10-alpine.

Answer:

Explanation:
solution

 

NEW QUESTION # 53
......

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