CKA Linux Foundation Certified Kubernetes Administrator (CKA) Program exact Exam Questions

Certified Kubernetes Administrator (CKA) Program

Last Update 21 hours ago Total Questions : 83

The Certified Kubernetes Administrator (CKA) Program content is now fully updated, with all current exam questions added 21 hours ago. Deciding to include CKA practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our CKA exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these CKA sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any Certified Kubernetes Administrator (CKA) Program practice test comfortably within the allotted time.

Question # 4

Score: 4%

Task

Check to see how many nodes are ready schedulable (not including nodes tainted NoSchedule ) and write the number to /opt/KUSC00402/kusc00402.txt.

Question # 5

Create a snapshot of the etcd instance running at https://127.0.0.1:2379, saving the snapshot to the file path /srv/data/etcd-snapshot.db.

The following TLS certificates/key are supplied for connecting to the server with etcdctl:

CA certificate: /opt/KUCM00302/ca.crt

Client certificate: /opt/KUCM00302/etcd-client.crt

Client key: Topt/KUCM00302/etcd-client.key

Question # 6

You must connect to the correct host.

Failure to do so may result in a zero score.

[candidate@base] $ ssh Cka000049

Task

Perform the following tasks:

Create a new PriorityClass named high-priority for user-workloads with a value that is one less

than the highest existing user-defined priority class value.

Patch the existing Deployment busybox-logger running in the priority namespace to use the high-priority priority class.

Answer:

See the solution below.

Explanation:

Task Summary

SSH into the correct node: cka000049

Find the highest existing user-defined PriorityClass

Create a new PriorityClass high-priority with a value one less

Patch Deployment busybox-logger (in namespace priority) to use this new PriorityClass

Step-by-Step Solution

1️⃣ SSH into the correct node

bash

CopyEdit

ssh cka000049

⚠️ Skipping this = zero score

2️⃣ Find the highest existing user-defined PriorityClass

Run:

bash

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kubectl get priorityclasses.scheduling.k8s.io

Example output:

vbnet

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NAME VALUE GLOBALDEFAULT AGE

default-low 1000 false 10d

mid-tier 2000 false 7d

critical-pods 1000000 true 30d

Exclude system-defined classes like system-* and the default global one (e.g., critical-pods).

Let's assume the highest user-defined value is 2000.

So your new class should be:

Value = 1999

3️⃣ Create the high-priority PriorityClass

Create a file called high-priority.yaml:

cat < high-priority.yaml

apiVersion: scheduling.k8s.io/v1

kind: PriorityClass

metadata:

name: high-priority

value: 1999

globalDefault: false

description: "High priority class for user workloads"

EOF

Apply it:

kubectl apply -f high-priority.yaml

4️⃣ Patch the busybox-logger deployment

Now patch the existing Deployment in the priority namespace:

kubectl patch deployment busybox-logger -n priority \

--type='merge' \

-p '{"spec": {"template": {"spec": {"priorityClassName": "high-priority"}}}}'

5️⃣ Verify your work

Confirm the patch was applied:

kubectl get deployment busybox-logger -n priority -o jsonpath='{.spec.template.spec.priorityClassName}'

✅ You should see:

high-priority

Also, confirm the class exists:

kubectl get priorityclass high-priority

Final Command Summary

ssh cka000049

kubectl get priorityclass

# Create the new PriorityClass

cat < high-priority.yaml

apiVersion: scheduling.k8s.io/v1

kind: PriorityClass

metadata:

name: high-priority

value: 1999

globalDefault: false

description: "High priority class for user workloads"

EOF

kubectl apply -f high-priority.yaml

# Patch the deployment

kubectl patch deployment busybox-logger -n priority \

--type='merge' \

-p '{"spec": {"template": {"spec": {"priorityClassName": "high-priority"}}}}'

# Verify

kubectl get deployment busybox-logger -n priority -o jsonpath='{.spec.template.spec.priorityClassName}'

kubectl get priorityclass high-priority

Question # 7

Create a pod as follows:

Name: mongo

Using Image: mongo

In a new Kubernetes namespace named: my-website

Question # 8

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

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

[student@nodename] $ | sudo –i

Question # 9

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.