Exam Name: Certified Kubernetes Security Specialist (CKS)
Certification Provider: Linux Foundation
Corresponding Certification: Kubernetes Security Specialist
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Certified Kubernetes Security Specialist (CKS): CKS Exam
"Certified Kubernetes Security Specialist (CKS)", also known as CKS exam, is a Linux Foundation Certification. With the complete collection of questions and answers, iPassleader has assembled to take you through 66 Q&As to your CKS Exam preparation. In the CKS exam resources, you will cover every field and category in Kubernetes Security Specialist Certification helping to ready you for your successful Linux Foundation Certification.
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- Updated on: Oct 23, 2026
- No. of Questions: 66 Questions & Answers
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- Updated on: Oct 23, 2026
- No. of Questions: 66 Questions & Answers
A Linux Foundation qualification creates promotion room that experience alone often cannot. The Linux Foundation Certified Kubernetes Security Specialist (CKS) exam is the gate, and the 66 practice questions at iPassleader are the most direct preparation for walking through it.
Linux Foundation CKS Exam Overview:
| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Certified Kubernetes Security Specialist (CKS) Exam |
| Exam Number: | CKS |
| Available Languages: | English |
| Exam Duration: | 120 minutes |
| Exam Price: | USD 395 |
| Certificate Validity Period: | 2 years |
| Passing Score: | Not publicly disclosed |
| Real Exam Qty: | Performance-based tasks (no fixed number) |
| Related Certifications: | Certified Kubernetes Application Developer (CKAD) Certified Kubernetes Administrator (CKA) |
| Exam Format: | Terminal-based tasks, Hands-on lab (Kubernetes environment), Performance-based exam |
| Recommended Training: | CKS Exam Preparation Course Kubernetes Security Essentials (Linux Foundation Training) |
| Exam Registration: | Linux Foundation Candidate Handbook Linux Foundation Certification Page |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online, proctored, remote performance-based exam |
| Pre Condition: | Valid Certified Kubernetes Administrator (CKA) certification is required |
| Official Syllabus URL: | https://training.linuxfoundation.org/certification/certified-kubernetes-security-specialist/ |
Linux Foundation CKS Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Minimizing Microservice Vulnerabilities | 20% | - Pod security standards - Container isolation and security contexts |
| Topic 2: System Hardening | 15% | - Kernel and node security configuration - Host security controls |
| Topic 3: Cluster Setup | 15% | - Secure installation configuration - Hardening cluster components |
| Topic 4: Cluster Hardening | 15% | - API server security - Authentication and authorization |
| Topic 5: Supply Chain Security | 20% | - Image scanning and verification - Secure CI/CD practices |
| Topic 6: Monitoring, Logging and Runtime Security | 15% | - Audit logging and monitoring - Runtime threat detection |
Frequently Asked Questions About Linux Foundation Certified Kubernetes Security Specialist (CKS)
Linux Foundation Certified Kubernetes Security Specialist (CKS) is an official Linux Foundation exam, catalogued under the code CKS. Passing it awards the Certified Kubernetes Security Specialist (CKS) certification at the Professional level. It also links to Certified Kubernetes Administrator (CKA), Certified Kubernetes Application Developer (CKAD), which broadens its career value. Qualifying exams exist to prove ability in a measurable way, and this one proves yours against the vendor's own standard.
Linux Foundation Certified Kubernetes Security Specialist (CKS) gives you Performance-based tasks (no fixed number) questions and 120 minutes to answer them. Treat time as a resource to allocate, not a countdown to fear: rehearse full sessions in the iPassleader test engine, practice skipping and returning, and build the calm familiarity that lets your actual knowledge show up on exam day.
Passing Linux Foundation Certified Kubernetes Security Specialist (CKS) takes Not publicly disclosed, and the official fee is USD 395. Retakes cost the full USD 395 again, which makes verified readiness the cheapest insurance there is. Track your iPassleader practice scores across sessions and book the exam only when clearing the requirement has become your baseline, not your best day.
Valid Certified Kubernetes Administrator (CKA) certification is required
Since vendor requirements are revised periodically, confirm the current conditions before registering on the official exam page.
Registration for Linux Foundation Certified Kubernetes Security Specialist (CKS) runs through the official channels below.
One scheduling note: the exam is delivered Online, proctored, remote performance-based exam.
Linux Foundation recommends the following training for Linux Foundation Certified Kubernetes Security Specialist (CKS) candidates.
Whichever path you choose, reinforce it with the 66 practice questions in the iPassleader CKS package, because exam confidence is built by answering, not just reading.
Yes. iPassleader provides a free PDF demo of the Linux Foundation Certified Kubernetes Security Specialist (CKS) material, so the product can earn your trust before it earns your money. After purchase, updates are free for 365 days, and once your product expires you can extend the update service at a 50% discount.
Your purchase carries a 100% money-back guarantee with defined conditions. Take the Linux Foundation Certified Kubernetes Security Specialist (CKS) exam within 60 days of purchase; if you fail, you can claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are not eligible, and neither are downloaded-but-unused products, free materials, or expired orders; the candidate name must match the payer name. File with a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. If you prefer, exchange instead: two other exam products of equal value, free, with the update service on your original purchase retained.
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The Linux Foundation Certified Kubernetes Security Specialist (CKS) exam is divided into 6 domains. The most prominent are System Hardening (15%), Monitoring, Logging and Runtime Security (15%), and Minimizing Microservice Vulnerabilities (20%). The complete outline is above on this page; candidates who know the map waste far less time getting to the destination.
Linux Foundation Certified Kubernetes Security Specialist (CKS) Sample Questions:
SIMULATION
Context
A CIS Benchmark tool was run against the kubeadm-created cluster and found multiple issues that must be addressed immediately.
Task
Fix all issues via configuration and restart the affected components to ensure the new settings take effect.
Fix all of the following violations that were found against the API server:
Fix all of the following violations that were found against the Kubelet:
Fix all of the following violations that were found against etcd:
Correct Answer:
See the Explanation below
Explanation:
SIMULATION
Create a User named john, create the CSR Request, fetch the certificate of the user after approving it.
Create a Role name john-role to list secrets, pods in namespace john
Finally, Create a RoleBinding named john-role-binding to attach the newly created role john-role to the user john in the namespace john.
To Verify: Use the kubectl auth CLI command to verify the permissions.
Correct Answer:
See explanation below
Explanation:
se kubectl to create a CSR and approve it.
Get the list of CSRs:
kubectl get csr
Approve the CSR:
kubectl certificate approve myuser
Get the certificate
Retrieve the certificate from the CSR:
kubectl get csr/myuser -o yaml
here are the role and role-binding to give john permission to create NEW_CRD resource:
kubectl apply -f roleBindingJohn.yaml --as=john
rolebinding.rbac.authorization.k8s.io/john_external-rosource-rb created kind: RoleBinding apiVersion: rbac.authorization.k8s.io/v1 metadata:
name: john_crd
namespace: development-john
subjects:
- kind: User
name: john
apiGroup: rbac.authorization.k8s.io
roleRef:
kind: ClusterRole
name: crd-creation
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: crd-creation
rules:
- apiGroups: ["kubernetes-client.io/v1"]
resources: ["NEW_CRD"]
verbs: ["create, list, get"]
SIMULATION
Two tools are pre-installed on the cluster's worker node:
Using the tool of your choice (including any non pre-installed tool), analyze the container's behavior for at least 30 seconds, using filters that detect newly spawning and executing processes.
Store an incident file at /opt/KSRS00101/alerts/details, containing the detected incidents, one per line, in the following format:
The following example shows a properly formatted incident file:
Correct Answer:
See explanation below
Explanation:
SIMULATION
Documentation Deployments, Pods, bom Command Help bom-help
You must connect to the correct host. Failure to do so may result in a zero score.
[candidate@base] $ ssh cks000035
Task
The alpine Deployment in the alpine namespace has three containers that run different versions of the alpine image.
First, find out which version of the alpine image contains the libcrypto3 package at version 3.1.4-r5.
Next, use the pre-installed bom tool to create an SPDX document for the identified image version at /home/candidate/alpine.spdx.
You can find the bom tool documentation at bom.
Finally, update the alpine Deployment and remove the container that uses the idenfied image version.
The Deployment's manifest file can be found at /home/candidate/alpine-deployment.yaml.
Do not modify any other containers of the Deployment.
Correct Answer:
See the Explanation below for complete solution
Explanation:
1) Connect to the correct host
ssh cks000035
sudo -i
export KUBECONFIG=/etc/kubernetes/admin.conf
2) List the 3 container names + images in the Deployment
kubectl -n alpine get deploy alpine -o jsonpath='{range .spec.template.spec.containers[*]}{.name}{"\t"}{.image}{"\n"}{end}' You'll get 3 lines like:
c1 alpine:3.xx
c2 alpine:3.yy
c3 alpine:3.zz
3) Identify which alpine image has libcrypto3 at 3.1.4-r5
Fastest reliable method (since it's Alpine, just query apk inside each image):
Run these one-by-one for each image you saw in step 2:
docker run --rm <ALPINE_IMAGE_1> sh -c 'apk info -v libcrypto3 2>/dev/null | head -n1' docker run --rm <ALPINE_IMAGE_2> sh -c 'apk info -v libcrypto3 2>/dev/null | head -n1' docker run --rm <ALPINE_IMAGE_3> sh -c 'apk info -v libcrypto3 2>/dev/null | head -n1'
✅ The correct image is the one that prints exactly:
libcrypto3-3.1.4-r5
Note that full image tag, e.g.:
IMG=alpine:3.xx
4) Create SPDX document with bom for that identified image
(Use the identified image from step 3.)
bom generate --image $IMG --format spdx --output /home/candidate/alpine.spdx Verify file exists:
ls -l /home/candidate/alpine.spdx
5) Remove ONLY the container that uses that image version
The manifest to edit is:
vi /home/candidate/alpine-deployment.yaml
In the spec.template.spec.containers: list, find the container entry whose image: equals the identified $IMG, and delete that one container block only (name/image/ports/etc for that container).
Save:
:wq
6) Apply the updated Deployment (do not change other containers)
kubectl apply -f /home/candidate/alpine-deployment.yaml
Wait rollout:
kubectl -n alpine rollout status deployment/alpine
7) Verify only 2 containers remain
kubectl -n alpine get deploy alpine -o jsonpath='{range .spec.template.spec.containers[*]}{.name}{"\t"}{.image}{"\n"}{end}' You should now see 2 lines, and the $IMG line should be gone.
If bom generate ... errors (quick fix)
Check exact syntax on that system:
bom --help
bom generate --help
Then rerun with the flags it expects, keeping:
image = $IMG
output = /home/candidate/alpine.spdx
format = spdx
SIMULATION
Context
A default-deny NetworkPolicy avoids to accidentally expose a Pod in a namespace that doesn't have any other NetworkPolicy defined.
Task
Create a new default-deny NetworkPolicy named defaultdeny in the namespace testing for all traffic of type Egress.
The new NetworkPolicy must deny all Egress traffic in the namespace testing.
Apply the newly created default-deny NetworkPolicy to all Pods running in namespace testing.
Correct Answer:
See the Explanation below
Explanation:
Viewing page 1 out of 14 pages.
Viewing questions 1-5 out of 66 questions.
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