Pass Your Linux Foundation CKA Exam with Correct 68 Questions and Answers
Latest [Oct 27, 2024] 2024 Realistic Verified CKA Dumps
The CKA certification exam is a hands-on, performance-based exam that tests the candidate's ability to perform various tasks related to Kubernetes. CKA exam consists of a set of practical tasks that the candidate must complete within a set time period. The tasks are designed to test the candidate's knowledge of Kubernetes and their ability to use Kubernetes to deploy, manage, and scale containerized applications.
CNCF CKA Certification Exam Prep Materials
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NEW QUESTION # 40
Create a redis pod named "test-redis" and exec into that pod and create a file named "test-file.txt" with the text 'This is called the test file' in the path /data/redis and open another tab and exec again with the same pod and verifies file exist in the same path.
- A. vim test-redis.yaml
apiVersion: v1
kind: Pod
metadata:
name: test-redis
spec:
containers:
- name: redis
image: redis
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /data/redis
name: redis-storage
volumes:
kubectl exec -it test-redis /bin/sh
cd /data/redis
echo 'This is called the test file' > file.txt
//open another tab
kubectl exec -it test-redis /bin/sh
cat /data/redis/file.txt - B. vim test-redis.yaml
apiVersion: v1
kind: Pod
metadata:
name: test-redis
spec:
containers:
- name: redis
image: redis
ports:
- containerPort: 6379
volumeMounts:
- mountPath: /data/redis
name: redis-storage
volumes:
- name: redis-storage
emptyDir: {}
kubectl apply -f redis-pod-vol.yaml
// first terminal
kubectl exec -it test-redis /bin/sh
cd /data/redis
echo 'This is called the test file' > file.txt
//open another tab
kubectl exec -it test-redis /bin/sh
cat /data/redis/file.txt
Answer: B
NEW QUESTION # 41
Create a Cronjob with busybox image that prints date and hello from kubernetes cluster message for every minute
- A. CronJob Syntax:
* --> Minute
* --> Hours
* --> Day of The Month
* --> Month
* --> Day of the Week
*/1 * * * * --> Execute a command every one minutes.
vim date-job.yaml
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: date-job
spec:
schedule: "*/1 * * * *"
jobTemplate:
spec:
template:
- /bin/sh
- -c
- date; echo Hello from the Kubernetes cluster
restartPolicy: OnFailure
kubectl apply -f date-job.yaml
//Verify
kubectl get cj date-job -o yaml - B. CronJob Syntax:
* --> Minute
* --> Hours
* --> Day of The Month
* --> Month
* --> Day of the Week
*/1 * * * * --> Execute a command every one minutes.
vim date-job.yaml
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: date-job
spec:
schedule: "*/1 * * * *"
jobTemplate:
spec:
template:
spec:
containers:
- name: hello
image: busybox
args:
- /bin/sh
- -c
- date; echo Hello from the Kubernetes cluster
restartPolicy: OnFailure
kubectl apply -f date-job.yaml
//Verify
kubectl get cj date-job -o yaml
Answer: B
NEW QUESTION # 42
Given a partially-functioning Kubernetes cluster, identify symptoms of failure on the cluster.
Determine the node, the failing service, and take actions to bring up the failed service and restore the health of the cluster. Ensure that any changes are made permanently.
You can ssh to the relevant I nodes (bk8s-master-0 or bk8s-node-0) using:
[student@node-1] $ ssh <nodename>
You can assume elevated privileges on any node in the cluster with the following command:
[student@nodename] $ | sudo -i
Answer:
Explanation:
solution
NEW QUESTION # 43
An Administrator is configuring Authentication Enforcement and they would like to create an exemption rule to exempt a specific group from authentication. Which authentication enforcement object should they select?
- A. default-browser-challenge
- B. default-web-form
- C. default-authentication-bypass
- D. default-no-captive-port
Answer: D
NEW QUESTION # 44
Create a Kubernetes secret as follows:
Name: super-secret
password: bob
Create a pod named pod-secrets-via-file, using the redis Image, which mounts a secret named super-secret at
/secrets.
Create a second pod named pod-secrets-via-env, using the redis Image, which exports password as CONFIDENTIAL
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\12 D.JPG
NEW QUESTION # 45
Verify certificate expiry date for ca certificate in /etc/kubernetes/pki
Answer:
Explanation:
openssl x509 -in ca.crt -noout -text | grep -i validity -A 4
NEW QUESTION # 46
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:
Explanation:
See the solution below.
Explanation
Solution:
Task should be complete on node -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
NEW QUESTION # 47
Check the Image version of nginx-dev pod using jsonpath
Answer:
Explanation:
kubect1 get po nginx-dev -o jsonpath='{.spec.containers[].image}{"\n"}'
NEW QUESTION # 48
Change the Image version back to 1.17.1 for the pod you just updated and observe the changes
Answer:
Explanation:
kubectl set image pod/nginx nginx=nginx:1.17.1 kubectl describe po nginx kubectl get po nginx -w # watch it
NEW QUESTION # 49
Remove taint added to node "worker-2"
Answer:
Explanation:
kubectl taint nodes worker-2 key:NoSchedule- // Verify You will see a message "node/worker-2 untainted" kubectl get nodes -o customcolumns=NAME:.metadata.name,TAINTS:.spec.taints --no-headers
NEW QUESTION # 50
From the pod label name=cpu-utilizer, find pods running high CPU workloads and write the name of the pod consuming most CPU to the file /opt/KUTR00102/KUTR00102.txt (which already exists).
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 51
Resume the rollout of the deployment
Answer:
Explanation:
kubectl rollout resume deploy webapp
NEW QUESTION # 52
Delete the above pod and create again from the same yaml file
and verifies there is no "test-file.txt" in the path /data/redis
(Since non-persistent storage "emptyDir" is used).
Answer:
Explanation:
kubectl delete pod test-redis kubectl create -f test-redis.yaml kubectl exec -it test-redis /bin/sh cat /data/redis/file.txt // file doesn't exist
NEW QUESTION # 53
View certificate details in /etc/kubernetes/pki
Answer:
Explanation:
// Verify Public Key / Certificate file Openssl x509 -in certificate.crt -noout -text // Verify Private Key Openssl rsa -in "private-key" -check // Verify CSR Openssl req -text -noout -verify
NEW QUESTION # 54
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:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 D.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 E.JPG
NEW QUESTION # 55
Create a nginx pod with label env=test in engineering namespace
See the solution below.
- A. 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 -n engineering -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 - B. 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 -n engineering -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
Answer: B
NEW QUESTION # 56
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.
- A. 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 - B. 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:
- 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=dev
Answer: A
NEW QUESTION # 57
Change the label for one of the pod to env=uat and list all the pods to verify
Answer:
Explanation:
kubectl label pod/nginx-dev3 env=uat --overwrite kubectl get pods --show-labels
NEW QUESTION # 58
......
Cloud Native Computing Foundation (CNCF) Exams
Cloud Native Computing Foundation (CNCF) Certification is a vendor-neutral qualification that provides validation of individuals knowledge of cloud native computing. Brightwork is the only authorized CNCF training provider for the CNCF Certified Kubernetes Administrator exam. CNCF CKA exam dumps has an excellent track record in passing the Cloud Native Computing exams, including this exam. The Cloud Native Computing Foundation (CNCF) has released its own official study guide to prepare for the certification exam. Assure the candidate is familiar with the content of this official study guide. Rewarding incentives will be provided for those who pass the certification exam.
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