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Linux Foundation CKA (Certified Kubernetes Administrator) Program Certification Exam is a leading certification program designed for IT professionals who want to demonstrate their expertise in managing and deploying applications using Kubernetes technology. Kubernetes is an open-source container orchestration system that automates the deployment, scaling, and management of containerized applications. As containerization becomes increasingly popular in modern software development, the demand for Kubernetes experts has grown rapidly. The CKA Certification program is an excellent way for IT professionals to enhance their Kubernetes skills, demonstrate their expertise to employers, and advance their careers.
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The CNCF Certified Kubernetes Administrator exam focuses on the deployment, management, and troubleshooting of applications running on Kubernetes clusters. Competition to get on the shortlists for CNCF Certified Kubernetes Administrator certification is fierce. Control over the major features of Kubernetes is crucial in passing the CNCF Certified Kubernetes Administrator exam. CNCF CKA exam dumps is recommended for candidates who want to find out more. Application of knowledge from the study guide to real life configuration will help candidates pass the CNCF Certified Kubernetes Administrator exam. Aspects of Kubernetes are crucial to passing the CNCF Certified Kubernetes Administrator exam. Product managers are operating the Kubernetes dashboard panel by using the dashboard panel. The format of options of the information displayed on the dashboard panel may change in the future. Months after the CNCF Certified Kubernetes Administrator certification exam has been released, changes will be made to the format of the portions of the dashboard panel that will be important to those who want to pass the exam.
Clients seeking to hire a Kubernetes engineer need to have a solid understanding of vendor offerings in order to secure the best options. Feel confident about your Kubernetes environment before taking the CNCF CKA Exam. A perfect understanding of vendor offerings will be a major factor in passing the CNCF Certified Kubernetes Administrator exam. Basic knowledge of Kubernetes configuration for the CNCF CKA exam will help candidates pass the CNCF Certified Kubernetes Administrator exam. Configure Kubernetes to work with external software. Satisfied clients will be in a position to recommend Kubernetes engineers.
NEW QUESTION # 83
Score: 7%
Task
Create a new nginx Ingress resource as follows:
* Name: ping
* Namespace: ing-internal
* Exposing service hi on path /hi using service port 5678
Answer:
Explanation:
Solution:
vi ingress.yaml
#
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ping
namespace: ing-internal
spec:
rules:
- http:
paths:
- path: /hi
pathType: Prefix
backend:
service:
name: hi
port:
number: 5678
#
kubectl create -f ingress.yaml
NEW QUESTION # 84
Task Weight: 4%
Task
Scale the deployment webserver to 3 pods.
Answer:
Explanation:
Solution:
NEW QUESTION # 85
You need to deploy a microservice application that uses a custom DNS service for internal communication between microservices. This DNS service is not a standard Kubernetes DNS service. How would you configure Kubernetes to use your custom DNS service for the internal communication of your application?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a ConfigMap for DNS Configuration:
- Create a ConfigMap to store the DNS configuration details for your custom DNS service.
- Example:
- Replace '10.0.0.1 ,10.0.0.2 with the IP addresses of your custom DNS servers and 'my-app.svc.cluster.local' with the search domain for your application. 2. Create a DaemonSet for DNS Configuration: - Create a DaemonSet that will inject the custom DNS configuration into all pods in your cluster. - Example:
- This DaemonSet will use a 'busybox' container to write the DNS configuration from the 'custom-dns-config' ConfigMap to the '/etc/resolv.conf file in every pod. 3. Deploy your Application: - Deploy your microservice application with the appropriate labels to ensure that the DaemonSet injects the custom DNS configuration into your application's pods. 4. Verify DNS Resolution: - Verify that your application's pods can resolve internal DNS names using your custom DNS service. - Example: - You can use the 'nslookup command within a pod to test DNS resolution. 5. Configure Security: - Implement appropriate security measures to protect your custom DNS service and prevent unauthorized access to your application's internal services. - Example: - Consider using a firewall to restrict access to the custom DNS servers. - Configure access control lists to limit access to the DNS service.
NEW QUESTION # 86
Score: 7%
Task
Given an existing Kubernetes cluster running version 1.20.0, upgrade all of the Kubernetes control plane and node components on the master node only to version 1.20.1.
Be sure to drain the master node before upgrading it and uncordon it after the upgrade.
You are also expected to upgrade kubelet and kubectl on the master node.
Answer:
Explanation:
SOLUTION:
[student@node-1] > ssh ek8s
kubectl cordon k8s-master
kubectl drain k8s-master --delete-local-data --ignore-daemonsets --force apt-get install kubeadm=1.20.1-00 kubelet=1.20.1-00 kubectl=1.20.1-00 --disableexcludes=kubernetes kubeadm upgrade apply 1.20.1 --etcd-upgrade=false systemctl daemon-reload systemctl restart kubelet kubectl uncordon k8s-master
NEW QUESTION # 87
Create a job named "hello-job" with the image busybox which echos "Hello I'm running job"
Answer: B
NEW QUESTION # 88
......
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