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| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Certified Kubernetes Administrator (CKA) Program Exam |
| Exam Number: | CKA |
| Passing Score: | 66% |
| Available Languages: | English |
| Related Certifications: | Certified Kubernetes Application Developer (CKAD) Certified Kubernetes Security Specialist (CKS) |
| Real Exam Qty: | 15-20 |
| Exam Duration: | 120 minutes |
| Certificate Validity Period: | 2 years |
| Exam Format: | Performance-based |
| Exam Price: | $445 USD |
| Sample Questions: | Linux Foundation CKA Sample Questions |
| Exam Way: | Online, proctored, performance-based exam. Candidates solve problems from a command line. |
| Pre Condition: | No prerequisites required. Candidates should have a conceptual and practical understanding of Kubernetes components and native objects. |
| Official Syllabus URL: | https://www.cncf.io/training/certification/cka/ |
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Linux Foundation CKA (Certified Kubernetes Administrator) Program Certification Exam is a globally recognized certification that validates the skills and expertise of individuals in designing, deploying, and managing applications using Kubernetes. Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. With the rapid adoption of Kubernetes, the demand for certified Kubernetes administrators has increased in recent years.
NEW QUESTION # 56
You have a deployment that runs multiple replicas of a web server application. You need to ensure that the Deployment always maintains at least 2 replicas available, even if one or more pods are deleted or become unavailable. How can you configure the Deployment to achieve this using the 'maxUnavailable' field in the 'strategy.rollingUpdate' section?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define the Deployment with maxUnavailable': Define a Deployment YAML file with 'replicas: 3', indicating that you want three replicas of the web server application. Then, in the 'strategy.rollinglJpdate' section, set the 'maxUnavailable' field to '1'.
2. Apply the Deployment: Apply the YAML file to your cluster using 'kubectl apply -f my-web-server.yamr. The deployment will create three replicas of your web server application. 3. Test the 'maxUnavailable' Configuration: Delete or terminate one of the pods in the Deployment. The Deployment will automatically create a new pod to replace the deleted or unavailable one, ensuring that at least two replicas are always available. You can monitor the status of the deployment using 'kubectl get pods -l app=my-web-server'. You should see that two pods are consistently running, while the third is being replaced.
NEW QUESTION # 57
Get list of all the nodes with labels
Answer:
Explanation:
kubectl get nodes --show-labels
NEW QUESTION # 58
Create a namespace called 'development' and a pod with image nginx called nginx on this namespace.
Answer:
Explanation:
kubectl create namespace development kubectl run nginx --image=nginx --restart=Never -n development
NEW QUESTION # 59
You have a Kubernetes cluster with a deployment named 'nginx-deployment' in the 'default' namespace. This deployment uses a container image 'nginx:latest'.
You want to define an admission webhook that enforces a policy to prevent deployments from using 'nginx:latest' and instead forces the use of a specific versioned image like 'nginx:l .20.1'. Create the webhook configuration and admission controller code that implements this policy.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a Webhook Configuration:
2. Create a Service for the Admission Webhook:
3. Create the Admission Controller Code: Example in Go:
4. Build and Deploy the Admission Controller: Build the Go code. Deploy the admission controller as a container in the Kubernetes cluster. Create the Service for the webhook. Create the WebhookConfiguration with the correct CA bundle for the admission controller. The webhook configuration defines the rules for the admission controller, including the resources, operations, and failure policy. The admission controller code handles the validation of the deployment object. It checks the image name and rejects deployments that use the 'nginx:latest' image. The Service exposes the admission controller to the Kubernetes API. The CA bundle is used to secure communication between the webhook and the Kubernetes API. Note: Replace with the actual CA bundle data. The admission controller code should be deployed and configured according to your specific environment and needs.,
NEW QUESTION # 60
Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.
Answer:
Explanation:
solution
NEW QUESTION # 61
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