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Linux Foundation CKA Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Services & Networking	20%	- Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Know how to use Ingress controllers and Ingress resources - Define and enforce Network Policies - Use the Gateway API to manage Ingress traffic - Understand and use CoreDNS - Understand connectivity between Pods
Topic 2: Storage	10%	- Understand persistent volume claims primitive - Understand volume mode, access modes and reclaim policies - Understand Storage Classes and Persistent Volumes - Understand how to configure applications with persistent storage
Topic 3: Troubleshooting	30%	- Understand how to monitor applications - Evaluate cluster and node logging - Manage container stdout & stderr logs - Troubleshoot cluster component failure - Troubleshoot application failure - Troubleshoot networking
Topic 4: Workloads & Scheduling	15%	- Understand Static Pods - Understand DaemonSets - Understand how to run multiple schedulers and configure scheduler policies - Understand Deployments and rolling update/rollback - Use ConfigMaps and Secrets to configure applications - Use label selectors to schedule Pods - Understand how scheduler works - Understand resource limits and requests
Topic 5: Cluster Architecture, Installation & Configuration	25%	- Implement and configure a highly-available control plane - Understand CRDs, install and configure operators - Manage the lifecycle of Kubernetes clusters - Manage role based access control (RBAC) - Create and manage Kubernetes clusters using kubeadm - Prepare underlying infrastructure for installing a Kubernetes cluster - Understand extension interfaces (CNI, CSI, CRI, etc.) - Use Helm and Kustomize to install cluster components

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q12-Q17):

NEW QUESTION # 12
Create a configmap called cfgvolume with values var1=val1,
var2=val2 and create an nginx pod with volume nginx-volume which
reads data from this configmap cfgvolume and put it on the path
/etc/cfg

A. // first create a configmap cfgvolume
kubectl create cm cfgvolume --from-literal=var1=val1 --fromliteral=var2=val2
// verify the configmap
kubectl describe cm cfgvolume
// create the config map
kubectl create -f nginx-volume.yml
vim nginx-configmap-pod.yaml
apiVersion: v1
kind: Pod
- name: nginx-volume
configMap:
name: cfgvolume
containers:
- image: nginx
name: nginx
volumeMounts:
- name: nginx-volume
mountPath: /etc/cfg
restartPolicy: Always
k kubectl apply -f nginx-configmap-pod.yaml
/ // Verify
// exec into the pod
kubectl exec -it nginx -- /bin/sh
// check the path
cd /etc/cfg
B. // first create a configmap cfgvolume
kubectl create cm cfgvolume --from-literal=var1=val1 --fromliteral=var2=val2
// verify the configmap
kubectl describe cm cfgvolume
// create the config map
kubectl create -f nginx-volume.yml
vim nginx-configmap-pod.yaml
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
spec:
volumes:
- name: nginx-volume
configMap:
name: cfgvolume
containers:
- image: nginx
name: nginx
volumeMounts:
- name: nginx-volume
mountPath: /etc/cfg
restartPolicy: Always
k kubectl apply -f nginx-configmap-pod.yaml
/ // Verify
// exec into the pod
kubectl exec -it nginx -- /bin/sh
// check the path
cd /etc/cfg

Answer: B

NEW QUESTION # 13
List all persistent volumes sorted by capacity, saving the full kubectl output to /opt/KUCC00102/volume_list. Use kubectl 's own functionality for sorting the output, and do not manipulate it any further.

Answer:

Explanation:
solution

NEW QUESTION # 14
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 # 15
Update the deployment with the image version 1.16.1 and verify the image and check the rollout history

Answer:

Explanation:
kubectl set image deploy/webapp nginx=nginx:1.16.1 kubectl describe deploy webapp | grep Image kubectl rollout history deploy webapp

NEW QUESTION # 16
Create a deployment as follows:
* Name: nginx-app
* Using container nginx with version 1.11.10-alpine
* The deployment should contain 3 replicas
Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update.
Finally, rollback that update to the previous version 1.11.10-alpine.

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION # 17
......

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