CKA PDF Dumps Real 2024 Recently Updated Questions
Released Linux Foundation CKA Updated Questions PDF
The CKA certification is highly regarded in the industry, and it is recognized as a standard for measuring the skills of Kubernetes administrators. Certified Kubernetes Administrator (CKA) Program Exam certification provides a way for professionals to demonstrate their expertise to employers and clients, and it can help them advance their careers in the field of Kubernetes administration. The CKA certification is also a prerequisite for other Kubernetes certifications offered by the Linux Foundation, such as the Certified Kubernetes Application Developer (CKAD) certification.
NEW QUESTION # 19
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
Answer:
Explanation:
solution
NEW QUESTION # 20
Evict all existing pods from a node-1 and make the node unschedulable for new pods.
- A. 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" - B. 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"
Answer: B
NEW QUESTION # 21
Print pod name and start time to "/opt/pod-status" file
Answer:
Explanation:
kubect1 get pods -o=jsonpath='{range
.items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'
NEW QUESTION # 22
Check the Image version of nginx-dev pod using jsonpath
Answer:
Explanation:
kubect1 get po nginx-dev -o jsonpath='{.spec.containers[].image}{"\n"}'
NEW QUESTION # 23
Get list of PVs and order by size and write to file "/opt/pvstorage.txt"
Answer:
Explanation:
kubectl get pv --sort-by=.spec.capacity.storage > /opt/pv storage.txt
NEW QUESTION # 24
For this item, you will have to ssh to the nodes ik8s-master-0 and ik8s-node-0 and complete all tasks on these nodes. Ensure that you return to the base node (hostname: node-1) when you have completed this item.
Context
As an administrator of a small development team, you have been asked to set up a Kubernetes cluster to test the viability of a new application.
Task You must use kubeadm to perform this task. Any kubeadm invocations will require the use of the --ignore-preflight-errors=all option.
Configure the node ik8s-master-O as a master node. .
Join the node ik8s-node-o to the cluster.
Answer:
Explanation:
solution
You must use the kubeadm configuration file located at /etc/kubeadm.conf when initializing your cluster.
You may use any CNI plugin to complete this task, but if you don't have your favourite CNI plugin's manifest URL at hand, Calico is one popular option: https://docs.projectcalico.org/v3.14/manifests/calico.yaml Docker is already installed on both nodes and apt has been configured so that you can install the required tools.
NEW QUESTION # 25
Delete the pod without any delay (force delete)
Answer:
Explanation:
Kubect1 delete po "POD-NAME" --grace-period=0 --force
NEW QUESTION # 26
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
Answer:
Explanation:
See the solution below.
Explanation
Solution:
kubectl describe nodes | grep ready|wc -l
kubectl describe nodes | grep -i taint | grep -i noschedule |wc -l
echo 3 > /opt/KUSC00402/kusc00402.txt
#
kubectl get node | grep -i ready |wc -l
# taintsnoSchedule
kubectl describe nodes | grep -i taints | grep -i noschedule |wc -l
#
echo 2 > /opt/KUSC00402/kusc00402.txt
NEW QUESTION # 27
Create a busybox pod and add "sleep 3600" command
Answer:
Explanation:
See the solution below.
Explanation
kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c
"sleep 3600"
NEW QUESTION # 28
Create the nginx pod with version 1.17.4 and expose it on port 80
Answer:
Explanation:
kubectl run nginx --image=nginx:1.17.4 --restart=Never -- port=80
NEW QUESTION # 29
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 # 30
create a pod in a specific node (node1) by placing the pod definition file in a particular folder "/etc/kubernetes/manifests".
- A. Generate YAML before we SSH to the specific node, then copy the YAML into the exam notepad to use it after SSH into worker node.
SSH to the node: "ssh node1"
Gain admin privileges to the node: "sudo -i"
Move to the manifest-path "cd /etc/kubernetes/manifests"
Place the generated YAML into the folder "vi nginx.yaml"
Find the kubelet config file path "ps -aux | grep kubelet" . This
will output information on kubelet process. Locate the kubelet config
file location.
kubelet config file -- /var/lib/kubelet/config.yaml
Edit the config file "vi /var/lib/kubelet/config.yaml" to add
staticPodPath
staticPodPath: /etc/kubernetes/manifests
Restart the kubelet "systemctl restart kubelet" - B. Generate YAML before we SSH to the specific node, then copy the YAML into the exam notepad to use it after SSH into worker node.
SSH to the node: "ssh node1"
Gain admin privileges to the node: "sudo -i"
Move to the manifest-path "cd /etc/kubernetes/manifests"
kubelet config file -- /var/lib/kubelet/config.yaml
Edit the config file "vi /var/lib/kubelet/config.yaml" to add
staticPodPath
staticPodPath: /etc/kubernetes/manifests
Restart the kubelet "systemctl restart kubelet"
Answer: A
NEW QUESTION # 31
Create a pod that echo "hello world" and then exists. Have the pod deleted automatically when it's completed
Answer:
Explanation:
kubectl run busybox --image=busybox -it --rm --restart=Never -- /bin/sh -c 'echo hello world' kubectl get po # You shouldn't see pod with the name "busybox"
NEW QUESTION # 32
Print pod name and start time to "/opt/pod-status" file
Answer:
Explanation:
See the solution below.
Explanation
kubect1 get pods -o=jsonpath='{range
items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'
NEW QUESTION # 33
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
- A. 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 - B. 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
Answer: B
NEW QUESTION # 34
For this item, you will have to ssh and complete all tasks on these
nodes. Ensure that you return to the base node (hostname: ) when you have completed this item.
Context
As an administrator of a small development team, you have been asked to set up a Kubernetes cluster to test the viability of a new application.
Task
You must use kubeadm to perform this task. Any kubeadm invocations will require the use of the
--ignore-preflight-errors=all option.
Configure the node ik8s-master-O as a master node. .
Join the node ik8s-node-o to the cluster.
Answer:
Explanation:
See the solution below.
Explanation
solution
You must use the kubeadm configuration file located at /etc/kubeadm.conf when initializingyour cluster.
You may use any CNI plugin to complete this task, but if you don't have your favourite CNI plugin's manifest URL at hand, Calico is one popular option:
https://docs.projectcalico.org/v3.14/manifests/calico.yaml
Docker is already installed on both nodes and apt has been configured so that you can install the required tools.
NEW QUESTION # 35
Get list of all pods in all namespaces and write it to file "/opt/pods-list.yaml"
Answer:
Explanation:
See the solution below.
Explanation
kubectl get po -all-namespaces > /opt/pods-list.yaml
NEW QUESTION # 36
A Kubernetes worker node, named .Investigate why this is the case,
andperform any appropriate steps tobring the node to a state,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
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 37
Check nodes which are ready and print it to a file /opt/nodestatus
- A. JSONPATH='{range .items[*]}{@.metadata.name}:{range
@.status.conditions[*]}{@.type}={@.status};{end}{end}' \
&& kubectl get nodes -o jsonpath="$JSONPATH" | grep
"Ready=True" > /opt/node-status
//Verify
cat /opt/node-status - B. JSONPATH='{range .items[*]}{@.metadata.name}:{range
@.status.conditions[*]}{@.type}={@.status};{end}{end}' \
//Verify
cat /opt/node-status
Answer: A
NEW QUESTION # 38
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:
See the solution below.
Explanation
solution
NEW QUESTION # 39
......
Linux Foundation Certified Kubernetes Administrator (CKA) program is an industry-recognized certification that validates the skills and expertise of professionals in managing and deploying Kubernetes clusters. Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. As Kubernetes adoption continues to grow, the demand for certified professionals with the necessary skills and knowledge to manage Kubernetes clusters has also increased.
CKA Dumps and Practice Test (68 Exam Questions): https://examsboost.actual4dumps.com/CKA-study-material.html