Certification Topics of CKA Exam PDF Recently Updated Questions [Q37-Q54]

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Certification Topics of CKA Exam PDF Recently Updated Questions

CKA Exam Prep Guide: Prep guide for the CKA Exam

NEW QUESTION 37
Check the image version in pod without the describe command

NEW QUESTION 38
Scale the deployment to 5 replicas

NEW QUESTION 39
View certificate details in /etc/kubernetes/pki

NEW QUESTION 40
Given a partially-functioning Kubernetes cluster, identify symptoms of failure on the cluster.
Determine the node, the failing service, and take actions to bring up the failed service and restore the health of the cluster. Ensure that any changes are made permanently.
You can ssh to the relevant I nodes (bk8s-master-0 or bk8s-node-0) using:
[student@node-1] $ ssh <nodename>
You can assume elevated privileges on any node in the cluster with the following command:
[student@nodename] $ | sudo -i

NEW QUESTION 41
Create a pod as follows:
Name: mongo
Using Image: mongo
In a new Kubernetes namespace named: my-website

NEW QUESTION 42
Score: 7%

Task
First, create a snapshot of the existing etcd instance running at https://127.0.0.1:2379, saving the snapshot to
/srv/data/etcd-snapshot.db.

Next, restore an existing, previous snapshot located at /var/lib/backup/etcd-snapshot-previo us.db

NEW QUESTION 43
Create and configure the service front-end-service so it’s accessible through NodePort and routes to the existing pod named front-end.

NEW QUESTION 44
Undo/Rollback deployment to specific revision “1”

// Check Deployment History
kubectl rollout history deployment webapp
//Rollback to particular revision
kubectl rollout undo deploymet webapp –to-revision=1

// Check Deployment History
kubectl rollout history deployment webapp
kubectl rollout undo deploymet webapp –to-revision=1

NEW QUESTION 45
Score:7%

Task
Create a new PersistentVolumeClaim
* Name: pv-volume
* Class: csi-hostpath-sc
* Capacity: 10Mi
Create a new Pod which mounts the PersistentVolumeClaim as a volume:
* Name: web-server
* Image: nginx
* Mount path: /usr/share/nginx/html
Configure the new Pod to have ReadWriteOnce access on the volume.
Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.

NEW QUESTION 46
Create PersistentVolume named task-pv-volume with storage 10Gi, access modes ReadWriteMany, storageClassName manual, and volume at /mnt/data and Create a PersistentVolumeClaim of at least 3Gi storage and access mode ReadWriteOnce and verify

vim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: 10Gi
accessModes:
– ReadWriteMany
hostPath:
path: “/mnt/data”
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
vim task-pvc-volume.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: task-pv-claim
spec:
storageClassName: manual
accessModes:
– ReadWriteMany
resources:
requests:
storage: 3Gi
kubectl apply -f task-pvc-volume.yaml
//Verify
Kuk kubectl get pvc

vim task-pv-volume.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: task-pv-volume
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: 10Gi
accessModes:
– ReadWriteMany
hostPath:
path: “/mnt/data”
kubectl apply -f task-pv-volume.yaml
//Verify
kubectl get pv
vim task-pvc-volume.yaml
apiVersion: v1
– ReadWriteMany
resources:
requests:
storage: 3Gi
kubectl apply -f task-pvc-volume.yaml
//Verify
Kuk kubectl get pvc

NEW QUESTION 47
Evict all existing pods from a node-1 and make the node unschedulable for new pods.

kubectl get nodes
kubectl drain node-1 #It will evict pods running on node-1 to
other nodes in the cluster
kubectl cordon node-1 # New pods cannot be scheduled to the
node
// Verify
kubectl get no
When you cordon a node, the status shows “SchedulingDisabled”

kubectl get nodes
kubectl drain node-1 #It will evict pods running on node-1 to
other nodes in the cluster
// Verify
kubectl get no
When you cordon a node, the status shows “SchedulingDisabled”

NEW QUESTION 48
Scale the deployment webserver to

NEW QUESTION 49
Score: 4%

Task
Check to see how many nodes are ready (not including nodes tainted NoSchedule ) and write the number to
/opt/KUSC00402/kusc00402.txt

NEW QUESTION 50
An administrator accidentally closed the commit window/screen before the commit was finished. Which two options could the administrator use to verify the progress or success of that commit task? (Choose two)

System Logs

Configuration Logs

Task Manager

Traffic Logs

NEW QUESTION 51
To protect your firewall and network from single source denial of service (DoS) attacks that can overwhelm its packet buffer and cause legitimate traffic to drop, you can configure:

BGP (Border Gateway Protocol)

PGP (Packet Gateway Protocol)

PBP (Packet Buffer Protection)

PBP (Protocol Based Protection)

NEW QUESTION 52
Monitor the logs of pod foo and:
Extract log lines corresponding
unable-to-access-website
Write them to/opt/KULM00201/foo

NEW QUESTION 53
Create a busybox pod and add “sleep 3600” command

NEW QUESTION 54
Score:7%

Context
An existing Pod needs to be integrated into the Kubernetes built-in logging architecture (e. g. kubectl logs).
Adding a streaming sidecar container is a good and common way to accomplish this requirement.
Task
Add a sidecar container named sidecar, using the busybox Image, to the existing Pod big-corp-app. The new sidecar container has to run the following command:
/bin/sh -c tail -n+1 -f /va r/log/big-corp-app.log
Use a Volume, mounted at /var/log, to make the log file big-corp-app.log available to the sidecar container.