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The CKA Program Certification Exam is a valuable certification for professionals who want to work with Kubernetes. It is recognized by companies around the world as a standard for Kubernetes expertise. Certified Kubernetes Administrator (CKA) Program Exam certification can help professionals advance their careers and increase their earning potential. It is also a great way to demonstrate a commitment to professional development and open-source technologies.
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Linux Foundation CKA (Certified Kubernetes Administrator) Program is a certification exam that has been designed to test and validate the skills of individuals who are looking to work with Kubernetes. Kubernetes is an open-source platform that is used to manage containerized applications. It is widely used in the cloud computing industry and is a critical skill for professionals who want to work with cloud-native technologies.
NEW QUESTION # 63
List all the pods showing name and namespace with a json path expression
Answer:
Explanation:
kubectl get pods -o=jsonpath="{.items[*]['metadata.name', 'metadata.namespace']}"
NEW QUESTION # 64
Check the rollout history and make sure everything is ok after the update
Answer: B
NEW QUESTION # 65
You are deploying an application on Kubernetes that requires access to a specific external service. This service is only accessible from the cluster network. Describe how you can implement a NetworkPolicy to secure access to the external service from the application pods.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a NetworkPolicy for the Application Pods:
- Define a NetworkPolicy rule that allows ingress traffic from the application pods to the external service. This policy should be applied to the namespace where the application pods are running.
2. Configure Network Access to the External Service: - Ensure that the external service is accessible from the cluster network. This might involve using a dedicated load balancer, a service proxy, or a network tunnel. 3. Implement a Service for the External Service: - Create a Kubernetes Service to represent the external service and expose it within the cluster. This service can be a headless service, which doesn't provide a public endpoint, as the external service is only accessible from the cluster network.
4. Verify Network Policy Configuration: - Verify that the NetworkPolicy is applied correctly and that the application pods can access the external service. Use 'kubectl get networkpolicies myapp-networkpolicy' to check the policy status and 'kubectl describe pod myapp-XXXX' (where XXXX is a pod name) to check the pod's network configuration.
NEW QUESTION # 66
Change the Image version to 1.15-alpine for the pod you just created and verify the image version is updated.
Answer: A
NEW QUESTION # 67
You have a Kubernetes cluster with two worker nodes and a single Nginx service deployed. You want to expose this service externally using a LoadBalancer service type but only want traffic to be directed to pods on a specific worker node. How would you achieve this?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Node Selector:
- Create a Node Selector label on the worker node where you want to host the Nginx pods.
- Example:
- Apply this configuration using 'kubectl apply -f node-config.yaml'. 2. Configure the Deployment: - Update the Nginx deployment to include the Node Selector label in its pod template. - Example:
- Apply the updated deployment configuration using 'kubectl apply -f nginx-deployment.yamr. 3. Create a LoadBalancer Service: - Create a LoadBalancer type service that selects the Nginx pods with the 'app=nginx' label. - Example:
- Apply the service configuration using 'kubectl apply -f nginx-service.yamP. 4. Verify the Deployment: - Confirm the deployment of the Nginx pods on the specified worker node using 'kubectl get pods -l app=nginx -o wide'. - Check the LoadBalancer service's external IP address using 'kubectl get services nginx-service'. - Access the Nginx service using the external IP address. All traffic should be routed to the pods on the worker node with the 'worker-type: nginx' label. ---
NEW QUESTION # 68
......
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