Linux Foundation CKA Practice Test - Questions Answers, Page 3

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.

Given a partially-functioning Kubernetes cluster, identify symptoms of failure on the cluster.

Determine the node, the failing service, and take actions to bring up the failed service and restore the health of the cluster. Ensure that any changes are made permanently.

You can ssh to the relevant I nodes (bk8s-master-0 or bk8s-node-0) using:

[student@node-1] $ ssh <nodename>

You can assume elevated privileges on any node in the cluster with the following command:

[student@nodename] $ | sudo –i

Create a persistent volume with name app-data, of capacity 2Gi and access mode ReadWriteMany.

The type of volume is hostPath and its location is /srv/app-data.

Create a namespace called 'development' and a pod with image nginx called nginx on this

namespace.

Create a nginx pod with label env=test in engineering namespace

Get list of all pods in all namespaces and write it to file "/opt/pods-list.yaml"

Create a pod with image nginx called nginx and allow traffic on port 80

Create a busybox pod that runs the command "env" and save the output to "envpod" file

List pod logs named "frontend" and search for the pattern "started" and write it to a file "/opt/errorlogs"