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Linux Foundation CKA Test Dumps

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Last Updated: 16-Dec-2024
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Question # 1



Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.




Answer: See the solution below.
Explanation:
solution




Question # 2



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.





Answer: See the solution below.
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




Question # 3



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 # 4



Scale the deployment webserver to 6 pods.








Question # 5



Score: 7%






Answer: See the solution below.
Solution:


#backup
ETCDCTL_API=3 etcdctl -endpoints="https://127.0.0.1:2379" -
cacert=/opt/KUIN000601/ca.crt -cert=/opt/KUIN000601/etcd-client.crt -
key=/opt/KUIN000601/etcd-client.key snapshot save /etc/data/etcd-snapshot.db
#restore
ETCDCTL_API=3 etcdctl -endpoints="https://127.0.0.1:2379" -
cacert=/opt/KUIN000601/ca.crt -cert=/opt/KUIN000601/etcd-client.crt -
key=/opt/KUIN000601/etcd-client.key snapshot restore /var/lib/backup/etcd-snapshotprevioys.
db




Question # 6



Create a pod named kucc8 with a single app container for each of the following images running inside (there may be between 1 and 4 images specified): 
nginx + redis + memcached.




Answer: See the solution below.
solution:




Question # 7



Score: 4%

Task
Scale the deployment presentation to 6 pods.





Answer: See the solution below.
Solution:
kubectl get deployment
kubectl scale deployment.apps/presentation -replicas=6




Question # 8



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 # 9



Ensure a single instance of pod nginx is running on each node of the Kubernetes cluster where nginx also represents the Image name which has to be used. Do not override any taints currently in place. Use DaemonSet to complete this task and use ds-kusc00201 as DaemonSet name.




Answer: See the solution below.
solution:




Question # 10



Create a deployment as follows:

Name: nginx-random
Exposed via a service nginx-random
Ensure that the service & 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 & pod and write the output to /opt/KUNW00601/service.dns and /opt/KUNW00601/pod.dns respectively.







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Certified Kubernetes Administrator (CKA) Program Exam Dumps


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

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Linux Foundation CKA Test Dumps


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Questions People Ask About CKA Exam

CKA (Certified Kubernetes Administrator) is a globally recognized certification that proves your skills in managing Kubernetes clusters in a production environment. It demonstrates that you can deploy, configure, troubleshoot, and secure Kubernetes, making it highly valued for professionals working with containerized applications.

CKA (Certified Kubernetes Administrator) focuses on general Kubernetes administration – setup, configuration, maintenance, etc. The CKS (Certified Kubernetes Security Specialist) goes deeper, ensuring you can secure Kubernetes clusters, workloads, and protect sensitive data within the containerized environment.

Time required to pass the Certified Kubernetes Administrator (CKA) exam is based on your experience with Kubernetes. Generally, candidates spend 2-3 months preparing. This includes in-depth study of Kubernetes' fundamentals, hands-on practice, and familiarization with its various components and systems. Dedication to consistent study and practical application, leveraging resources like official documentation, online courses, and CKA practice test, is essential for successfully achieving CKA certification.

CKA exam is not easy! It's a hands-on, performance-based exam that requires a deep understanding of Kubernetes concepts and troubleshooting skills. With dedicated study, practice in a real Kubernetes environment, and a problem-solving mindset, you can definitely succeed, but it demands effort.

Whether the CKA or CKAD is easier depends on your background and strengths:

  • CKA: Broader in scope, covering Kubernetes administration tasks alongside some security basics. Might be easier if you have strong admin skills but less security experience.
  • CKAD: Focuses on application design, building, and deployment within Kubernetes. Might be easier if you have a development background and are comfortable with containers.
Overall, both exams are challenging and require significant knowledge of Kubernetes. The "easier" one depends on your existing skills and where you prefer to focus your studies.

KCNA (Kubernetes and Cloud Native Associate) is considered the easiest Linux Foundation certification. It focuses on foundational concepts and terminology of Kubernetes and cloud-native technologies. It's a great entry point for those new to these concepts before tackling the more challenging CKA or CKAD certifications.

Here's your CKA prep roadmap:

  • Have some Linux and networking understanding.
  • Official Curriculum: Download it from the Linux Foundation – it's your exam blueprint!
  • Focused Training: Use courses on Udemy, Linux Academy, etc. for structured learning.
  • Hands-on is King: Build your own Kubernetes cluster (even a small one) and practice!
  • Practice test: Use Dumps4free CKA practice test for real exam preparation!

Number of tasks in the CKA exam can vary slightly between versions. However, you can expect around 15-20 performance-based tasks. These require you to work directly with a Kubernetes cluster to solve problems, deploy applications, configure components, etc.

Here's how to dive into Kubernetes without spending a dime:

  • Kubernetes Docs: Your primary resource, though a bit overwhelming for beginners.
  • Katacoda: Offers free, interactive scenarios to practice Kubernetes concepts.
  • Minikube: Run a small Kubernetes cluster on your own computer for practice.
  • Online Communities: Seek help and learn from others on forums and social platforms.

No, you cannot use a traditional notepad application like Windows Notepad during the CKA exam. However, you are allowed to use a basic text editor like Vim or Nano within the provided Linux terminal to take notes, create temporary files, or draft commands before execution.