Linux Foundation
CKA
Certified Kubernetes Administrator (CKA)
Program
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Version: Demo
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[ Total Questions: 10]
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Exact Questions
Linux Foundation - CKA
Question #:1
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.
See the solution below.
Explanation
solution
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Question #:2
Check the Image version of nginx-dev pod using jsonpath
See the solution below.
Explanation
kubect1 get po nginx-dev -o
jsonpath='{.spec.containers[].image}{"\n"}'
Question #:3
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Exact Questions
Linux Foundation - CKA
List all the pods sorted by name
See the solution below.
Explanation
kubect1 get pods --sort-by=.metadata.name
Question #:4
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 –i
See the solution below.
Explanation
solution
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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 –i
See the solutionbelow.
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Explanation
solution
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Question #:6
List pod logs named “frontend” and search for the pattern “started” and write it to a file “/opt/error-logs”
See the solution below.
Explanation
Kubectl logs frontend | grep -i “started” > /opt/error-logs
Question #:7
Create a pod with image nginx called nginx and allow traffic on port 80
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See the solution below.
Explanation
kubectlrun nginx --image=nginx --restart=Never --port=80
Question #:8
Create a busybox pod and add “sleep 3600” command
See the solution below.
Explanation
kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c
"sleep 3600"
Question #:9
Ensure a single instance of podnginxis running on each node of theKubernetes cluster wherenginxalso
represents the Image name whichhas to be used. Do not override anytaints currently in place.
UseDaemonSetto complete thistask and useds-kusc00201asDaemonSet name.
See the solution below.
Explanation
solution
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Question #:10
List “nginx-dev” and “nginx-prod” pod and delete those pods
See the solution below.
Explanation
kubect1 get pods -o wide
kubectl delete po “nginx-dev”kubectl delete po “nginx-prod”
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