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The CNCF Certified Kubernetes Administrator exam is designed to test the knowledge of candidates on deploying, managing, and troubleshooting applications on Kubernetes clusters. Answers to the CNCF Certified Kubernetes Administrator exam questions can be found in the official study guide. Real world experience and hands-on configuration and troubleshooting is critical to passing any certification exam. Real world experience will put candidates in good stead for the CNCF Certified Kubernetes Administrator exam. Download the study guide and start studying for the exam. CNCF CKA exam dumps can be accessed from certain test providers. The CNCF CKA exam dumps will provide the candidate with the knowledge to pass the exam. Application of knowledge from the study guide to real life configuration will help candidates pass the CNCF Certified Kubernetes Administrator exam. Updates on the official definition of each question will be available on the Brightwork website. Understanding questions on Kubernetes in the CNCF Certified Kubernetes Administrator exam is subject to change. Understanding real-world configuration and troubleshooting is central to passing the CNCF Certified Kubernetes Administrator exam.
The CKA Certification is ideal for system administrators, developers, and IT professionals who work with Kubernetes and want to validate their skills and knowledge. Certified Kubernetes Administrator (CKA) Program Exam certification provides a competitive edge to individuals in the job market and opens up new career opportunities in the field of containerization and cloud computing. Certified Kubernetes Administrator (CKA) Program Exam certification is also recognized by leading companies in the industry, such as Google, Microsoft, and Red Hat, and is a valuable addition to any professional's resume.
NEW QUESTION # 66
Create a file:
/opt/KUCC00302/kucc00302.txt that lists all pods that implement service baz in namespace development.
The format of the file should be one pod name per line.
Answer:
Explanation:
See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\11 B.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\11 C.JPG
F:\Work\Data Entry Work\Data Entry\20200827\CKA\11 D.JPG
NEW QUESTION # 67
For this item, you will have to ssh and complete all tasks on these
nodes. Ensure that you return to the base node (hostname: ) when you have completed this item.
Context
As an administrator of a small development team, you have been asked to set up a Kubernetes cluster to test the viability of a new application.
Task
You must use kubeadm to perform this task. Any kubeadm invocations will require the use of the
--ignore-preflight-errors=all option.
Configure the node ik8s-master-O as a master node. .
Join the node ik8s-node-o to the cluster.
Answer:
Explanation:
See the solution below.
Explanation
solution
You must use the kubeadm configuration file located at /etc/kubeadm.conf when initializingyour cluster.
You may use any CNI plugin to complete this task, but if you don't have your favourite CNI plugin's manifest URL at hand, Calico is one popular option:
https://docs.projectcalico.org/v3.14/manifests/calico.yaml
Docker is already installed on both nodes and apt has been configured so that you can install the required tools.
NEW QUESTION # 68
Create the service as type NodePort with the port 32767 for the nginx pod with the pod selector app: my-nginx
Answer:
Explanation:
kubectl run nginx --image=nginx --restart=Never -- labels=app=nginx --port=80 --dry-run -o yaml > nginx-pod.yaml
NEW QUESTION # 69
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:
See the solution below.
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 # 70
You are tasked with configuring RBAC for a Kubernetes cluster hosting a microservices application.
The application consists of three services:
- 'frontend' which only needs to access the 'nginx-ingress-controller' deployment to configure Ingress resources.
- 'backend' which needs read-only access to the 'postgres' service for database queries.
- 'worker' which needs to create, update, and delete pods in the 'worker-namespace' namespace and access the 'redis' service.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Create the necessary RBAC roles, role bindings, and service accounts to enable these permissions.
Solution (Step by Step) :
1 . Create Service Accounts:
kubectl create serviceaccount frontend-sa -n default
kubectl create serviceaccount backend-sa -n default
kubectl create serviceaccount worker-sa -n worker-namespace
2. Create Roles:
3. Create Role Bindings: kubectl create rolebinding frontend-binding -n default -role=frontend-role serviceaccount=default:frontend-sa kubectl create rolebinding backend-binding -n default --role=backend-role - serviceaccount=default:backend-sa kubectl create rolebinding worker-binding -n worker-namespace -role=worker-role - serviceaccount=worker- namespace:worker-sa 4. Grant Access to Services: Frontend: The 'frontend' service account should have access to the 'nginx-ingress-controller' deployment. This can be done through a Role or ClusterRole and RoleBinding or ClusterRoleBinding, depending on if the controller is in the same namespace or across namespaces. Backend: The 'backend' service account should have read-only access to the postgres' service. This can be achieved by creating a 'ServiceAccount' for the 'backend' service and binding it to a 'Role' that grants the necessary permissions on the 'postgres' service. Worker: The 'worker' service account should have full access (create, update, delete) to pods in the 'worker- namespace' and read access to the 'redis' service. Important Notes: - The provided 'kubectl' commands are illustrative. You may need to adjust them based on your specific cluster configuration. - The above RBAC configuration is a basic example. Depending on the specific needs of your application, you may need to configure more granular roles and bindings.
NEW QUESTION # 71
......
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