[Apr-2022] The Best Kubernetes Administrator Study Guide for the CKA Exam
CKA certification guide Q&A from Training Expert Free4Torrent
NEW QUESTION 25
Score: 4%
Task
Create a persistent volume with name app-data , of capacity 1Gi and access mode ReadOnlyMany. The type of volume is hostPath and its location is /srv/app-data .
Answer:
Explanation:
See the solution below.
Explanation
Solution:
#vi pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: app-config
spec:
capacity:
storage: 1Gi
accessModes:
- ReadOnlyMany
hostPath:
path: /srv/app-config
#
kubectl create -f pv.yaml
NEW QUESTION 26
Score: 4%
Task
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.
Answer:
Explanation:
See the solution below.
Explanation
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon ek8s-node-1
kubectl drain ek8s-node-1 --delete-local-data --ignore-daemonsets --force
NEW QUESTION 27
Create the service as type NodePort with the port 32767 for the nginx pod with the pod selector app: my-nginx
Answer:
Explanation:
kubectl run nginx --image=nginx --restart=Never -- labels=app=nginx --port=80 --dry-run -o yaml > nginx-pod.yaml
NEW QUESTION 28
Get IP address of the pod - "nginx-dev"
Answer:
Explanation:
See the solution below.
Explanation
Kubect1 get po -o wide
Using JsonPath
kubect1 get pods -o=jsonpath='{range
items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'
NEW QUESTION 29
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 30
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a state, ensuring that any changes are made permanent.
You can ssh to the failed node using:
[student@node-1] $ | ssh Wk8s-node-0
You can assume elevated privileges on the node with the following command:
[student@w8ks-node-0] $ | sudo -i
Answer:
Explanation:
See the solution below.
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 31
Get the pods with label env=dev and output the labels
Answer:
Explanation:
kubectl get pods -l env=dev --show-labels
NEW QUESTION 32
Scale the deployment to 5 replicas
Answer:
Explanation:
kubectl scale deployment webapp -replicas=5 //Verify kubectl get deploy kubectl get po,rs
NEW QUESTION 33
Create a snapshot of the etcd instance running at https://127.0.0.1:2379, saving the snapshot to the file path
/srv/data/etcd-snapshot.db.
The following TLS certificates/key are supplied for connecting to the server with etcdctl:
CA certificate: /opt/KUCM00302/ca.crt
Client certificate: /opt/KUCM00302/etcd-client.crt
Client key: Topt/KUCM00302/etcd-client.key
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\18 C.JPG
NEW QUESTION 34
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:
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 - 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:
- /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: A
NEW QUESTION 35
From the pod labelname=cpu-utilizer, find podsrunning high CPU workloads and write the name of the pod consumingmost CPU to thefile/opt/KUTR00102/KUTR00102.txt(which already exists).
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 36
Create and configure the servicefront-end-serviceso it's accessiblethroughNodePortand routes to theexisting pod namedfront-end.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 37
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.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 38
Resume the rollout of the deployment
Answer:
Explanation:
kubectl rollout resume deploy webapp
NEW QUESTION 39
Scale the deploymentwebserverto6pods.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION 40
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