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The Certified Kubernetes Administrator (CKA) Program Certification Exam is an industry-leading certification program offered by the Linux Foundation. Certified Kubernetes Administrator (CKA) Program Exam certification is designed for IT professionals who want to demonstrate their expertise in Kubernetes, an open-source container orchestration platform. Kubernetes has become the de facto standard for container orchestration, and organizations around the world are hiring professionals who are proficient in Kubernetes to manage their containerized workloads.

Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q11-Q16):

NEW QUESTION # 11
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:

NEW QUESTION # 12
You have a 'NodePort' service named 'my-service' exposed on port 30000. You need to configure a NetworkPolicy to only allow access to the service from specific nodes in the cluster based on their node labels.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a NetworkPolicy:
- Define a NetworkPolicy that allows traffic from nodes with specific labels to the service.

2. Apply the NetworkPolicy: - Apply the YAML file using 'kubectl apply -f networkpolicy.yaml'. 3. Verify the NetworkPolicy: - Check the status of the NetworkPolicy using 'kubectl get networkpolicies allow-specific-nodes -n . 4. Test: - Access the service using the 'NodePort' on a node with the specified label. You should be able to access the service. - Access the service using the 'NodePort' on a node that does not have the specified label. You should not be able to access the service. Note: - Replace with the actual namespace where your service is located. - Replace the CIDR values with the actual CIDRs of your nodes or the node labels that you want to use for filtering.,

NEW QUESTION # 13
You are running a stateful application using a StatefulSet. How do you ensure that the application data is preserved during a rolling update?

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Use Persistent Volumes:
- Use Persistent Volumes (PVs) and Persistent Volume Claims (PVCs) to provide persistent storage for the stateful application data.
- Ensure that the PVCs are mounted to the pods in the StatefulSet.

2. Configure Rolling Updates: - Configure the StatefulSet's updateStrategy' to use a rolling update strategy. - Ensure that the 'updateStrategy.type' is set to 'RollingUpdate'. 3. Validate Data Preservation: - Perform a rolling update by updating the StatefulSet. - Validate that the application data is preserved during the update process. - Check the logs and application state to confirm that the data is intact.

NEW QUESTION # 14
Monitor the logs of pod foo and:
* Extract log lines corresponding to error
unable-to-access-website
* Write them to/opt/KULM00201/foo

Answer:

Explanation:
See the solution below.
Explanation
solution

NEW QUESTION # 15
You are setting up RBAC for a Kubernetes cluster with three namespaces: "development", "staging", and "production". You need to create a role binding that allows developers in the "development" namespace to create deployments, pods, and services, but only within their own namespace.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 Create a Role for Developers:

2. Create a Role Binding for Developers:

3. Replace 'developer-user' with the actual username of a developer. 4. Repeat steps 1-3 for other namespaces ("staging" and "production") with appropriate resource permissions and user names. 5. Verify the RBAC configuration: - Check that the roles and rolebindings are created successfully using 'kubectl get roles' and 'kubectl get rolebindings'. - Test the permissions by creating a pod, deployment, or service as a developer user in their respective namespaces. 6. If you encounter issues, review the configuration carefully, making sure the namespaces, roles, role bindings, and user names are correct.

NEW QUESTION # 16
......

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