[Nov-2021] Latest Linux Foundation CKA exam dumps and online Test Engine
Linux Foundation CKA: Selling Kubernetes Administrator Products and Solutions
How to Prepare For Linux Foundation-CKA: Certified Kubernetes Administrator Exam
Preparation Guide for Linux Foundation-CKA: Certified Kubernetes Administrator Exam
Introduction
This certification is for Kubernetes administrators, cloud administrators and other IT professionals who manage Kubernetes instances. A certified K8s administrator has demonstrated the ability to do basic installation as well as configuring and managing production-grade Kubernetes clusters. They will have an understanding of key concepts such as Kubernetes networking, storage, security, maintenance, logging and monitoring, application lifecycle, troubleshooting, API object primitives and the ability to establish basic use-cases for end users. This learning path is intended specifically for Kubernetes cluster administrators. Anyone interested in learning how to work with Kubernetes will also benefit from this CNCF CKA practice exams and CNCF CKA practice test.
Responsibilities of a Kubernetes administrator involve designing and implementing solutions to leverage a Kubernetes cluster, configuring hardware, peripherals, and services, managing settings and storage, deploying cloud-native applications, and monitoring and supporting a Kubernetes environment. You also undertake duties like researching opportunities for automation, troubleshooting issues as reported by users, and mentoring junior team members in best practices. You often collaborate with other members of the IT team using tools like GIT to promote security, efficiency, and scalability of core services and capabilities.
Kubernetes is one of the world’s most popular container orchestration tools. Established by the Cloud Native Computing Foundation (CNCF), the Kubernetes Administrator certification is designed to validate your skills for working with Kubernetes. This learning path is designed to help you prepare you for the CKA exam. It includes a combination of courses covering each exam domain, a series of labs to build hands-on Kubernetes experience working directly in a live cloud environment, and exams to test your knowledge along the way.
A Kubernetes Adminstrator requires strong experience with Windows, Linux, or Unix system administration, as well as solid skills with orchestration platforms, such as ECS, Kubernetes, or Mesos. Knowledge of SQL databases and basic coding skills in Java, JavaScript, PHP, or a similar language are all desirable, as is experience with microservices architectures. Many positions require a bachelorâs degree in computer science, networking, or a related field. This exam to become a Certified Kubernetes Administrator (CKA) will enhance your qualifications and expand your income potential.
NEW QUESTION 36
Get list of all the nodes with labels
Answer:
Explanation:
kubectl get nodes --show-labels
NEW QUESTION 37
Undo the deployment with the previous version and verify
everything is Ok
Answer:
Explanation:
kubectl rollout undo deploy webapp kubectl rollout status deploy webapp kubectl get pods
NEW QUESTION 38
Configure the kubelet systemd- managed service, on the node labelled with name=wk8s-node-1, to launch a pod containing a single container of Image httpd named webtool automatically. Any spec files required should be placed in the /etc/kubernetes/manifests directory on the node.
You can ssh to the appropriate node using:
[student@node-1] $ ssh wk8s-node-1
You can assume elevated privileges on the node with the following command:
[student@wk8s-node-1] $ | sudo -i
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 39
Deploy a pod with image=redis on a node with label disktype=ssd
- A. // Get list of nodes
kubectl get nodes
//Get node with the label disktype=ssd
kubectl get no -l disktype=ssd
// Create a sample yaml file
kubectl run node-redis --generator=run-pod/v1 --image=redis --dry
run -o yaml > test-redis.yaml
// Edit test-redis.yaml file and add nodeSelector
vim test-redis.yaml
apiVersion: v1
- name: node-redis
image: redis
imagePullPolicy: IfNotPresent
kubectl apply -f test-redis.yaml
/ // Verify
K kubectl get po -o wide - B. // Get list of nodes
kubectl get nodes
//Get node with the label disktype=ssd
kubectl get no -l disktype=ssd
// Create a sample yaml file
kubectl run node-redis --generator=run-pod/v1 --image=redis --dry
run -o yaml > test-redis.yaml
// Edit test-redis.yaml file and add nodeSelector
vim test-redis.yaml
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
nodeSelector:
disktype: ssd
containers:
- name: node-redis
image: redis
imagePullPolicy: IfNotPresent
kubectl apply -f test-redis.yaml
/ // Verify
K kubectl get po -o wide
Answer: B
NEW QUESTION 40
Monitor the logs of pod foo and:
Extract log lines corresponding
unable-to-access-website
Write them to/opt/KULM00201/foo
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\1 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\1 C.JPG
NEW QUESTION 41
Make the node schedulable by uncordon the node
Answer:
Explanation:
kubectl uncordon node-1 //verify kubectl get no
NEW QUESTION 42
Perform the following tasks:
* Add an init container tohungry-bear(which has beendefined in spec file
/opt/KUCC00108/pod-spec-KUCC00108.yaml)
* The init container should createan empty file named/workdir/calm.txt
* If/workdir/calm.txtis notdetected, the pod should exit
* Once the spec file has beenupdatedwith the init containerdefinition, the pod should becreated
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 43
Create the deployment redis with image=redis and expose it with "NodePort" service redis-service
- A. kubectl create deploy redis --image=redis --dry-run -o yaml >
redis-deploy.yaml
Edit redis-deploy.yaml file
name: redis
spec:
replicas: 1
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
spec:
containers:
- image: redis
name: redis
//Creating Service
kubectl expose deploy redis --type=NodePort --port=6379 --
target-port=6379 --name redis-service
// Verify
kubectl get deploy,svc - B. kubectl create deploy redis --image=redis --dry-run -o yaml >
redis-deploy.yaml
Edit redis-deploy.yaml file
vim redis-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: redis
name: redis
spec:
replicas: 1
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
spec:
containers:
- image: redis
name: redis
//Creating Service
kubectl expose deploy redis --type=NodePort --port=6379 --
target-port=6379 --name redis-service
// Verify
kubectl get deploy,svc
Answer: B
NEW QUESTION 44
Create a redis pod, and have it use a non-persistent storage
Note: In exam, you will have access to kubernetes.io site,
Refer : https://kubernetes.io/docs/tasks/configure-pod-container/configurevolume-storage/
- A. apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: redis
volumeMounts:
- containerPort: 6379
volumes:
- name: redis-storage
emptyDir: {} - B. apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: redis
volumeMounts:
- name: redis-storage
mountPath: /data/redis
ports:
- containerPort: 6379
volumes:
- name: redis-storage
emptyDir: {}
Answer: B
NEW QUESTION 45
Create a pod as follows:
Name: mongo
Using Image: mongo
In a new Kubernetes namespace named: my-website
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\9 B.JPG
NEW QUESTION 46
Change the Image version to 1.15-alpine for the pod you just created and verify the image version is updated.
- A. Kubect1 set image pod/nginx nginx=nginx:1.15-alpine
kubect1 describe po nginx
// another way it will open vi editor and change the version
kubeclt edit po nginx
kubect1 describe po nginx - B. Kubect1 set image pod/nginx nginx=nginx:1.15-alpine
kubect1 describe po nginx
// another way it will open vi editor and change the version
kubect1 describe po nginx
Answer: A
NEW QUESTION 47
List all the pods showing name and namespace with a json path expression
Answer:
Explanation:
kubectl get pods -o=jsonpath="{.items[*]['metadata.name', 'metadata.namespace']}"
NEW QUESTION 48
Get list of all pods in all namespaces and write it to file "/opt/pods-list.yaml"
Answer:
Explanation:
See the solution below.
Explanation
kubectl get po -all-namespaces > /opt/pods-list.yaml
NEW QUESTION 49
Create an nginx pod which reads username as the environment variable
- A. // create a yml file
kubectl run nginx --image=nginx --restart=Never --dry-run -o
yaml > nginx.yml
// add env section below and create
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
spec:
containers:
- image: nginx
name: nginx
env:
- name: USER_NAME
restartPolicy: Never
kubectl create -f nginx.yml
//Verify
kubectl exec -it nginx - env - B. // create a yml file
kubectl run nginx --image=nginx --restart=Never --dry-run -o
yaml > nginx.yml
// add env section below and create
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
spec:
containers:
- image: nginx
name: nginx
env:
- name: USER_NAME
valueFrom:
secretKeyRef:
name: my-secret
key: username
restartPolicy: Never
kubectl create -f nginx.yml
//Verify
kubectl exec -it nginx - env
Answer: B
NEW QUESTION 50
List the nginx pod with custom columns POD_NAME and POD_STATUS
Answer:
Explanation:
See the solution below.
Explanation
kubectl get po -o=custom-columns="POD_NAME:.metadata.name,
POD_STATUS:.status.containerStatuses[].state"
NEW QUESTION 51
Create a pod that echo "hello world" and then exists. Have the pod deleted automatically when it's completed
Answer:
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"
NEW QUESTION 52
Create a deployment spec file that will:
Launch 7 replicas of the nginx Image with the labelapp_runtime_stage=dev deployment name: kual00201 Save a copy of this spec file to /opt/KUAL00201/spec_deployment.yaml (or /opt/KUAL00201/spec_deployment.json).
When you are done, clean up (delete) any new Kubernetes API object that you produced during this task.
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\10 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\10 C.JPG
NEW QUESTION 53
Create 5 nginx pods in which two of them is labeled env=prod and
three of them is labeled env=dev
- A. kubectl run nginx-dev1 --image=nginx --restart=Never --
labels=env=dev
kubectl run nginx-dev2 --image=nginx --restart=Never --
labels=env=dev
kubectl run nginx-prod1 --image=nginx --restart=Never --
labels=env=prod
kubectl run nginx-prod2 --image=nginx --restart=Never --
labels=env=prod - B. kubectl run nginx-dev1 --image=nginx --restart=Never --
labels=env=dev
kubectl run nginx-dev2 --image=nginx --restart=Never --
labels=env=dev
kubectl run nginx-dev3 --image=nginx --restart=Never --
labels=env=dev
kubectl run nginx-prod1 --image=nginx --restart=Never --
labels=env=prod
kubectl run nginx-prod2 --image=nginx --restart=Never --
labels=env=prod
Answer: B
NEW QUESTION 54
......
How much Linux Foundation-CKA: Certified Kubernetes Administrator Cost and Details
Examination Name: Linux Foundation-CKA: Certified Kubernetes Administrator Passing Score: 66% or higher Length of Exam: 120 min Types of questions: Multiple Choice Questions No. of Questions: 24 Questions Examination Fees: $300 USD Retake Exam: Free
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