CKA Online Practice Questions and Answers

Questions 4

SIMULATION

Schedule a pod as follows:

Name: nginx-kusc00101

Image: nginx

Node selector: disk=ssd

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Questions 5

SIMULATION

Check to see how many worker nodes are ready (not including nodes tainted NoSchedule) and write the number to /opt/KUCC00104/kucc00104.txt.

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Questions 6

SIMULATION

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

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Questions 7

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

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Questions 8

Create a pod that echo "hello world" and then exists. Have the pod deleted automatically when it's completed

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Questions 9

List all the pods sorted by name

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Questions 10

Get IP address of the pod - "nginx-dev"

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Questions 11

Create a busybox pod and add "sleep 3600" command

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Questions 12

SIMULATION

Task

Schedule a pod as follows:

Name: nginx-kusc00401

Image: nginx

Node selector: disk=ssd

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Questions 13

SIMULATION

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.