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The CKA exam is designed to test the candidate's ability to deploy, configure, and manage Kubernetes clusters. CKA exam is a hands-on, performance-based test where the candidate must complete a set of tasks within a given time frame. The tasks include creating and managing clusters, pods, services, and deployments, troubleshooting issues, and securing the Kubernetes environment.
The Cloud Native Computing Foundation (CNCF) is a technology consortium designed to connect and harness the strength of existing and emerging technologies to simplify and accelerate the cloud and infrastructure modernization journey for enterprises. The Cloud Native Computing Foundation Certification Program offers a series of 3 exams to assess knowledge of cloud-native computing.
The focus of this exam is to validate the ability to operate Kubernetes cluster infrastructure and advise customers on best practices for their particular use cases. Complicated infrastructure requirements are expected to be addressed through step-by-step instructions. The exam does not measure programming or development skills. A lot of practice exercises are required to prepare for the exam. CNCF CKA Exam Dumps will be the best choice. Recommend using a Kubernetes cloud platform such as kubeadm to test infrastructure in a learn-by-doing approach. Confidence in working with Kubernetes will provide more confidence to the candidate while passing the exam. Assurance of obtaining the CNCF Certified Kubernetes Administrator certificate is available upon passing this exam. Products from various vendors across the industry will be tested.
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The demand for Kubernetes has been growing rapidly in recent years, as more and more organizations are adopting containerization technology. The CKA Certification program is designed to help IT professionals demonstrate their proficiency in Kubernetes, which can help them advance their careers and increase their earning potential.
NEW QUESTION # 15
Configure the kubelet systemd- managed service, on the node labelled with name=wk8s-node-1, to launch a pod containing a single container of Image httpd named webtool automatically. Any spec files required should be placed in the /etc/kubernetes/manifests directory on the node.
You can ssh to the appropriate node using:
[student@node-1] $ ssh wk8s-node-1
You can assume elevated privileges on the node with the following command:
[student@wk8s-node-1] $ | sudo -i
Answer:
Explanation:
NEW QUESTION # 16
You are deploying an application on Kubernetes. You need to ensure that a minimum of three pods are always running for this application. How can you achieve this? Describe how to configure the deployment with a replica count and a liveness probe to monitor the health of the pods.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Deployment with a Replica Count:
- Create a YAML file named 'deployment.yamr with the following content:
- Apply the YAML file using 'kubectl apply -f deployment.yaml&. 2. Configure a Liveness Probe: - Update the 'deployment.yaml' file to include a liveness probe. For example, you could use a HTTP probe:
- Apply the updated YAML file using 'kubectl apply -f deployment.yaml'. 3. Verify the Deployment: - Check the status of the deployment using get deployments myapp-deploymen. - Ensure that three pods are running and that the liveness probe is monitoring their health. You can use 'kubectl describe pod myapp-deployment-XXXX' (where XXXX is the pod name) to see the details of the pod and the liveness probe status.
NEW QUESTION # 17 
Task
Create a new Ingress resource as follows:
. Name: echo
. Namespace : sound-repeater
. Exposing Service echoserver-service on
http://example.org/echo
using Service port 8080
The availability of Service
echoserver-service can be checked
i
using the following command, which should return 200 :
[candidate@cka000024] $ curl -o /de v/null -s -w "%{http_code}\n"
http://example.org/echo
Answer:
Explanation:
Task Summary
Create an Ingress named echo in the sound-repeater namespace that:
* Routes requests to /echo on host example.org
* Forwards traffic to service echoserver-service
* Uses service port 8080
* Verification should return HTTP 200 using curl
# Step-by-Step Answer
1## SSH into the correct node
As shown in the image:
bash
CopyEdit
ssh cka000024
## Skipping this will result in a ZERO score!
2## Verify the namespace and service
Ensure the sound-repeater namespace and echoserver-service exist:
kubectl get svc -n sound-repeater
Look for:
echoserver-service ClusterIP ... 8080/TCP
3## Create the Ingress manifest
Create a YAML file: echo-ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: echo
namespace: sound-repeater
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: example.org
http:
paths:
- path: /echo
pathType: Prefix
backend:
service:
name: echoserver-service
port:
number: 8080
4## Apply the Ingress resource
kubectl apply -f echo-ingress.yaml
5## Test with curl as instructed
Use the exact verification command:
curl -o /dev/null -s -w "%{http_code}\n"
http://example.org/echo
# You should see:
200
# Final Answer Summary
ssh cka000024
kubectl get svc -n sound-repeater
# Create the Ingress YAML
cat <<EOF > echo-ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: echo
namespace: sound-repeater
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: example.org
http:
paths:
- path: /echo
pathType: Prefix
backend:
service:
name: echoserver-service
port:
number: 8080
EOF
kubectl apply -f echo-ingress.yaml
curl -o /dev/null -s -w "%{http_code}\n"
http://example.org/echo
NEW QUESTION # 18
List all the pods showing name and namespace with a json path expression
Answer:
Explanation:
See the solution below.
Explanation
kubectl get pods -o=jsonpath="{.items[*]['metadata.name',
'metadata.namespace']}"
NEW QUESTION # 19
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:
NEW QUESTION # 20
......
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