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Pass Guaranteed Quiz 2025 High Pass-Rate Linux Foundation CKA Valid Test Guide

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Linux Foundation CKA (Certified Kubernetes Administrator) Program Certification Exam is a highly recognized certification exam for professionals seeking to demonstrate their expertise in managing and deploying Kubernetes clusters. Kubernetes is an open-source platform for automating deployment, scaling, and management of containerized applications. As Kubernetes becomes increasingly popular, the demand for certified Kubernetes administrators continues to grow. The CKA certification is designed to validate the skills and knowledge required to manage Kubernetes clusters effectively.

The CKA Exam is a hands-on, performance-based exam that tests an individual’s ability to perform tasks related to Kubernetes administration. CKA exam consists of a set of performance-based tasks that must be completed within a three-hour time limit. CKA exam is designed to test an individual’s ability to perform real-world tasks related to Kubernetes administration.

>> CKA Valid Test Guide <<

CKA Authorized Certification | CKA Real Exam Answers

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q34-Q39):

NEW QUESTION # 34
Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.

Answer:

Explanation:
See the solution below.
Explanation
solution
F:WorkData Entry WorkData Entry00827CKA8 B.JPG

NEW QUESTION # 35
// Create a configmap
kubectl create configmap redis-config --from-file=/opt/redisconfig
// Verify
kubectl get configmap redis-config -o yaml
// first run this command to save the pod yml
kubectl run redis-pod --image=redis --restart=Always --dry-run
-o yaml > redis-pod.yml
// edit the yml to below file and create
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: redis
env:
- name: MASTER
value: "true"
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /redis-master-data
name: data
- mountPath: /redis-master
name: config
volumes:
- name: data
emptyDir: {}
- name: config
configMap:
name: example-redis-config

A. items:
- key: redis-config
path: redis.conf
cf
// // Verify
K kubectl exec -it redis - cat /redis-master-data/redis.conf
B. items:
- key: redis-config
path: redis.conf
cf
kk kubectl apply -f redis-pod.yml
// // Verify
K kubectl exec -it redis - cat /redis-master-data/redis.conf

Answer: B

NEW QUESTION # 36
Create a nginx pod with label env=test in engineering namespace

Answer:

Explanation:
See the solution below.
Explanation
kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml > nginx-pod.yaml kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml | kubectl create -nengineering-f - YAML File:
apiVersion: v1
kind: Pod
metadata:
name: nginx
namespace: engineering
labels:
env: test
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
restartPolicy: Never
kubectl create -f nginx-pod.yaml

NEW QUESTION # 37
You must connect to the correct host.
Failure to do so may result in a zero score.
[candidate@base] $ ssh Cka000051
Context
You manage a WordPress application. Some Pods are not starting because resource requests are too high.
Your task Is to prepare a Linux system for Kubernetes . Docker is already installed, but you need to configure it for kubeadm .
Task
Complete these tasks to prepare the system for Kubernetes :
Set up cri-dockerd :
. Install the Debian package
~/cri-dockerd_0.3.9.3-0.ubuntu-jammy_am
d64.deb
Debian packages are installed using
dpkg .
. Enable and start the cri-docker service
Configure these system parameters:
. Set net.bridge.bridge-nf-call-iptables to 1

Answer:

Explanation:
Task Summary
You are given a host to prepare for Kubernetes:
* Use dpkg to install cri-dockerd
* Enable and start the cri-docker service
* Set net.bridge.bridge-nf-call-iptables to 1 via sysctl
Step-by-Step Instructions
1## SSH into the correct node
bash
CopyEdit
ssh cka000051
## Required - failure to connect to the correct host = zero score.
2## Install cri-dockerd
You are told the .deb file is already located at:
bash
CopyEdit
~/cri-dockerd_0.3.9.3-0.ubuntu-jammy_amd64.deb
Install it with dpkg:
bash
CopyEdit
sudo dpkg -i ~/cri-dockerd_0.3.9.3-0.ubuntu-jammy_amd64.deb
# If any dependencies are missing (e.g., golang or containerd), you might need:
bash
CopyEdit
sudo apt-get install -f -y
But usually, the exam system provides a pre-validated .deb environment.
3## Enable and start cri-docker service
Start and enable both services:
bash
CopyEdit
sudo systemctl enable cri-docker.service
sudo systemctl enable --now cri-docker.socket
sudo systemctl start cri-docker.service
Check status (optional but smart):
bash
CopyEdit
sudo systemctl status cri-docker.service
You should see it active (running).
4## Configure the sysctl parameter
Set net.bridge.bridge-nf-call-iptables=1 immediately and persistently.
Step A: Apply immediately:
sudo sysctl net.bridge.bridge-nf-call-iptables=1
Step B: Persist it in /etc/sysctl.d:
Create or modify a file:
echo "net.bridge.bridge-nf-call-iptables = 1" | sudo tee /etc/sysctl.d/k8s.conf Reload sysctl:
sudo sysctl --system
Verify:
sysctl net.bridge.bridge-nf-call-iptables
Should return:
net.bridge.bridge-nf-call-iptables = 1
# Now the system is ready for kubeadm with Docker (via cri-dockerd)!
ssh cka000051
sudo dpkg -i ~/cri-dockerd_0.3.9.3-0.ubuntu-jammy_amd64.deb
sudo systemctl enable cri-docker.service
sudo systemctl enable --now cri-docker.socket
sudo systemctl start cri-docker.service
sudo sysctl net.bridge.bridge-nf-call-iptables=1
echo "net.bridge.bridge-nf-call-iptables = 1" | sudo tee /etc/sysctl.d/k8s.conf sudo sysctl --system

NEW QUESTION # 38
You have a two-tier application with a frontend service 'frontend-svc' exposing a Node.js application running in pods labeled 'app: frontend', and a backend service 'backend-svc' exposing a Python application running in pods labeled 'app: backend'. The frontend pods need to communicate with the backend pods through a service. Design a Kubernetes network setup that allows the frontend pods to access the backend service, ensuring that the backend service is reachable only by the frontend service and not directly from outside the cluster.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Service for the Backend:
- Define a Service for the backend pods:

- This Service creates a ClusterlP service, accessible only within the cluster. The 'targetPort' specifies the port exposed by the backend pods. 2. Create a Service for the Frontend: - Define a Service for the frontend pods:

- This Service creates a LoadBalancer service, accessible from outside the cluster. 3. Configure NetworkPolicy for the Frontend Service: - Define a NetworkPolicy that allows traffic from the 'frontend-svc' to the 'backend-svc':

- This NetworkPolicy allows ingress traffic from the 'frontend-svc' and egress traffic to the 'backend-svc'. 4. Apply the Configurations: - Apply the YAML files using 'kubectl apply -f backend-svc.yaml' , 'kubectl apply -f frontend-svc.yamr , and kubectl apply -f frontend-to-backend.yamr. 5. Verification: - Check the status of the services: 'kubectl get services' - Check the network policy status: 'kubectl get networkpolicies' Now, the frontend pods can communicate with the backend service through the 'backend-svc' service. External clients can access the frontend application through the 'frontend-svc' service. The backend service is not accessible directly from outside the cluster due to the NetworkPolicy restricting traffic from external sources. ]

NEW QUESTION # 39
......

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