LATEST CKA–100% FREE RELIABLE BRAINDUMPS PDF | NEW CKA BRAINDUMPS EBOOK

Latest CKA–100% Free Reliable Braindumps Pdf | New CKA Braindumps Ebook

Latest CKA–100% Free Reliable Braindumps Pdf | New CKA Braindumps Ebook

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Linux Foundation CKA (Certified Kubernetes Administrator) program is a certification that recognizes an individual's expertise in managing and deploying applications on the Kubernetes platform. Certified Kubernetes Administrator (CKA) Program Exam certification is designed for professionals who have a solid understanding of Kubernetes and its underlying components, including networking, storage, security, and cluster architecture. The CKA program is ideal for individuals who are looking to enhance their Kubernetes skillset and are interested in pursuing a career in DevOps, cloud computing, or containerization.

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The CKA exam is a hands-on, performance-based exam that tests the candidate's ability to perform tasks commonly required of Kubernetes administrators. It is designed to be challenging and requires a deep understanding of Kubernetes concepts, architecture, and deployment. CKA exam covers topics such as deploying and scaling applications, configuring networking, managing storage, and troubleshooting common issues. Passing the CKA exam demonstrates that the candidate has the skills and knowledge required to effectively manage Kubernetes clusters and is recognized as a valuable credential in the industry.

The CKA Program Certification Exam is highly regarded in the industry and is recognized as a valuable credential for Kubernetes administrators. Certified Kubernetes Administrator (CKA) Program Exam certification demonstrates that the candidate has the skills and knowledge required to design, deploy, and maintain Kubernetes clusters in production environments. CKA Exam is designed to be challenging, and candidates are expected to have a strong understanding of Kubernetes architecture, networking, storage, and security. Certified Kubernetes Administrator (CKA) Program Exam certification is valid for two years, after which candidates must recertify to maintain their credentials.

Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q16-Q21):

NEW QUESTION # 16
Score:7%

Context
An existing Pod needs to be integrated into the Kubernetes built-in logging architecture (e. g. kubectl logs). Adding a streaming sidecar container is a good and common way to accomplish this requirement.
Task
Add a sidecar container named sidecar, using the busybox Image, to the existing Pod big-corp-app. The new sidecar container has to run the following command:
/bin/sh -c tail -n+1 -f /va r/log/big-corp-app.log
Use a Volume, mounted at /var/log, to make the log file big-corp-app.log available to the sidecar container.

Answer:

Explanation:
Solution:
#
kubectl get pod big-corp-app -o yaml
#
apiVersion: v1
kind: Pod
metadata:
name: big-corp-app
spec:
containers:
- name: big-corp-app
image: busybox
args:
- /bin/sh
- -c
- >
i=0;
while true;
do
echo "$(date) INFO $i" >> /var/log/big-corp-app.log;
i=$((i+1));
sleep 1;
done
volumeMounts:
- name: logs
mountPath: /var/log
- name: count-log-1
image: busybox
args: [/bin/sh, -c, 'tail -n+1 -f /var/log/big-corp-app.log']
volumeMounts:
- name: logs
mountPath: /var/log
volumes:
- name: logs
emptyDir: {
}
#
kubectl logs big-corp-app -c count-log-1


NEW QUESTION # 17
Your organization uses a private DNS server for internal services and requires all Kubernetes pods to resolve names against this DNS server. You need to configure CoreDNS to forward all DNS requests to this private server.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Configure CoreDNS with Forwarding:
- In the CoreDNS ConfigMap, configure the 'forward' plugin to forward all DNS requests to your private DNS server.

2. Test DNS Resolution: - Use the 'nslookup' command from a pod in your cluster to test DNS resolution for internal services. - The requests should be forwarded to the private DNS server, and the corresponding records should be returned.


NEW QUESTION # 18
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 # 19
Kubernetes. The microservices communicate with each other via a shared database. Explain how you would implement a strategy to manage persistent data in the database, ensuring availability and scalability for all microservices.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Use a Database with High Availability:
- Select a database system that supports high availability, such as MySQL with Galera or PostgreSQL with Patroni. These database systems can replicate data across multiple nodes, providing fault tolerance and scalability.
2. Deploy the Database as a StatefulSet:
- Create a StatefulSet for your database deployment, ensuring that each pod is assigned a unique name and volume claim. This will ensure that the database data is preserved even if pods are restarted or deleted.
3. Implement Persistent Volumes and Claims:
- Define PersistentVolumeClaims (PVCs) for each database node, requesting a storage class that provides the desired performance and resilience.
- Create corresponding PersistentVolumes (PVs) to back these PVCs, ensuring sufficient capacity and appropriate access modes.
4. Configure Microservice Pods to Access the Database:
- Configure each microservice pod to access the database using the StatefulSet's service name or a dedicated database service.
5. Utilize a Service Mesh:
- Consider deploying a service mesh like Istio to manage communication between microservices and the database. A service mesh provides features like load balancing, service discovery, and security, simplifying communication management.
6. Implement Monitoring and Alerting:
- Monitor the health and performance of both the database and microservices to quickly detect and resolve any issues. Configure alerts to notify you of critical events or failures.
7. Scale the Database as Needed:
- Use horizontal pod autoscaling (HPA) to automatically scale the database deployment based on its load. This ensures that the database can handle increasing traffic.


NEW QUESTION # 20
Create a deployment spec file that will:
Launch 7 replicas of the nginx Image with the label app_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:
solution


NEW QUESTION # 21
......

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