Up To The Minute CKA Dumps For Certified Kubernetes Administrator (CKA) Program Certification

NEW QUESTION 1
List all the pods sorted by created timestamp

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubect1 get pods--sort-by=.metadata.creationTimestamp

NEW QUESTION 2
Scale the deploymentwebserverto6pods.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\14 B.JPG

NEW QUESTION 3
A Kubernetes worker node, namedwk8s-node-0is in stateNotReady.Investigate why this is the case, andperform any appropriate steps tobring the node to aReadystate,ensuring that any changes are madepermanent.
You cansshto the failednode using:
[student@node-1] $ | sshWk8s-node-0
You can assume elevatedprivileges on the node with thefollowing command:
[student@w8ks-node-0] $ |sudo ?Ci

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\20 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\20 D.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\20 E.JPG

NEW QUESTION 4
Create a nginx pod with label env=test in engineering namespace

• A. Mastered
• B. Not Mastered

Answer: A

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 ?C
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 5
Given a partially-functioningKubernetes cluster, identifysymptoms of failure on the cluster.
Determine the node, the failingservice, and take actions to bring upthe failed service and restore thehealth of the cluster. Ensure that anychanges are made permanently.
You cansshto the relevant Inodes (bk8s-master-0orbk8s-node-0) using:
[student@node-1] $ ssh<nodename>
You can assume elevatedprivileges on any node in thecluster with the followingcommand:
[student@nodename] $ | sudo ?Ci

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 D.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\23 E.JPG

NEW QUESTION 6
Create a namespace called 'development' and a pod with image nginx called nginx on this namespace.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubectl create namespace development
kubectl run nginx --image=nginx --restart=Never -n development

NEW QUESTION 7
Create a deployment as follows:
Name:nginx-app
Using containernginxwithversion 1.11.10-alpine
The deployment should contain3replicas
Next, deploy the application with newversion1.11.13-alpine, byperforming a rolling update.
Finally, rollback that update to theprevious version1.11.10-alpine.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\7 B.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\7 C.JPG

F:\Work\Data Entry Work\Data Entry\20200827\CKA\7 D.JPG

NEW QUESTION 8
List all persistent volumes sorted bycapacity, saving the fullkubectloutput to
/opt/KUCC00102/volume_list. Usekubectl 's own functionality forsorting the output, and do not manipulate it any further.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\2 C.JPG

NEW QUESTION 9
Create an nginx pod and list the pod with different levels of verbosity

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
// create a pod
kubectl run nginx --image=nginx --restart=Never --port=80
// List the pod with different verbosity kubectl get po nginx --v=7
kubectl get po nginx --v=8 kubectl get po nginx --v=9

NEW QUESTION 10
Create a busybox pod and add ??sleep 3600?? command

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c "sleep 3600"

NEW QUESTION 11
Get list of all pods in all namespaces and write it to file ??/opt/pods-list.yaml??

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubectl get po ?Call-namespaces > /opt/pods-list.yaml

NEW QUESTION 12
Create a persistent volume with nameapp-data, of capacity2Giandaccess modeReadWriteMany. Thetype of volume ishostPathand itslocation is/srv/app-data.

• A. Mastered
• B. Not Mastered

Answer: A

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 namedapp-data, with access modeReadWriteMany, storage classname
shared,2Giof storage capacity and the host path/srv/app-data.

* 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:app-data 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: "/srv/app-data"name: configpvc

NEW QUESTION 13
Create a Kubernetes secret asfollows:
Name: super-secret
password: bob
Create a pod namedpod-secrets-via-file, using theredisImage, which mounts a secret namedsuper-secretat
/secrets.
Create a second pod namedpod-secrets-via-env, using theredisImage, which exportspasswordas
CONFIDENTIAL

• A. Mastered
• B. Not Mastered

Answer: A

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 14
List all the pods sorted by name

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubect1 get pods --sort-by=.metadata.name

NEW QUESTION 15
Get list of all the pods showing name and namespace with a jsonpath expression.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubectl get pods -o=jsonpath="{.items[*]['metadata.name'
, 'metadata.namespace']}"

NEW QUESTION 16
List the nginx pod with custom columns POD_NAME and POD_STATUS

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
kubectl get po -o=custom-columns="POD_NAME:.metadata.name, POD_STATUS:.status.containerStatuses[].state"

NEW QUESTION 17
Create a snapshot of theetcdinstance running athttps://127.0.0.1:2379, saving thesnapshot to the file path /srv/data/etcd-snapshot.db.
The following TLScertificates/key are suppliedfor connecting to the server withetcdctl:
CA certificate:/opt/KUCM00302/ca.crt
Client certificate:/opt/KUCM00302/etcd-client.crt
Client key:Topt/KUCM00302/etcd-client.key

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\18 C.JPG

NEW QUESTION 18
Create a deployment spec file thatwill:
Launch 7 replicas of thenginxImage 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 thatyou produced during this task.

• A. Mastered
• B. Not Mastered

Answer: A

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 19
......