CKA Question Includes: Single Choice Questions: 0, Simulation: 83,
For this item, you will have to ssh to the nodes ik8s-master-0 and ik8s-node-0 and complete all tasks on these nodes. Ensure that you return to the base node (hostname: node-1) 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.
List all the pods sorted by created timestamp
Score: 4%
Task
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.
You can ssh to the failed node using:
[student@node-1] $ | ssh Wk8s-node-0
You can assume elevated privileges on the node with the following command:
[student@w8ks-node-0] $ | sudo –i
Quick Reference
ConfigMaps,
Documentation Deployments,
Namespace
You must connect to the correct host . Failure to do so may result in a zero score.
[candidate@base] $ ssh cka000048b
Task
An NGINX Deployment named nginx-static is running in the nginx-static namespace. It is configured using a ConfigMap named nginx-config .
First, update the nginx-config ConfigMap to also allow TLSv1.2. connections.
You may re-create, restart, or scale resources as necessary.
You can use the following command to test the changes:
[candidate@cka000048b] $ curl -- tls-max
1.2 https://web.k8s.local
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The Certified Kubernetes Administrator (CKA) Exam is an industry-recognized certification offered by the Linux Foundation and the Cloud Native Computing Foundation (CNCF). It validates your ability to deploy, manage, and troubleshoot Kubernetes clusters in a production environment.
The CKA Exam covers a wide range of Kubernetes concepts, including:
There are no strict prerequisites, but familiarity with Kubernetes concepts and hands-on experience is recommended.
The CKA certification is valid for three years. After that, you’ll need to recertify to maintain your credential.
The passing score for the CKA exam is 66%.
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