Certified Kubernetes Security Specialist (CKS) Practice Test
Build your confidence for Certified Kubernetes Security Specialist (CKS). Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
The Certified Kubernetes Security Specialist (CKS) certification is the industry's premier validation of advanced skills in securing container-based applications and Kubernetes platforms during build, deployment, and runtime. Awarded by the Cloud Native Computing Foundation (CNCF) and Linux Foundation, this performance-based exam certifies that a professional can perform critical security tasks under time constraints in a command-line environment. The CKS builds upon the foundational Certified Kubernetes Administrator (CKA) credential, focusing exclusively on security best practices, threat mitigation, and compliance enforcement within Kubernetes clusters. It covers the entire container lifecycle, from supply chain security and image vulnerability scanning to runtime security, network policy enforcement, and audit logging. Earning the CKS demonstrates to employers a proven, hands-on ability to harden Kubernetes deployments against modern threats, implement least-privilege access, and ensure cluster components meet organizational security benchmarks. This certification is essential for roles responsible for the security posture of cloud-native infrastructure in production environments.
Sample Questions
Choose an answer and explore the explanation to see how practice works.
Which audit policy level records the request body but not the response body?
Which Dockerfile instruction can leak secrets into the image even after being deleted in a later step?
Which annotation tells Kyverno that an image signature should be verified using a keyless Sigstore identity matching a GitHub Actions workflow?
Which Kubernetes object referenced by ESO (External Secrets Operator) maps a remote secret to a Kubernetes Secret?
Which Kubernetes pod field selects the desired RuntimeClass at scheduling time?
Career Opportunities & Salary
Exam insights and study advice
In today's cloud-native landscape, security is not an afterthought but a foundational requirement. The CKS certification provides tangible, industry-recognized proof of your ability to design, build, and maintain secure Kubernetes environments. It directly impacts career advancement by qualifying you for high-demand roles such as Kubernetes Security Engineer, DevSecOps Specialist, and Cloud Security Architect. Organizations actively seek CKS holders to mitigate risks, ensure compliance, and protect critical assets, making this credential a powerful differentiator that commands premium compensation and signifies elite expertise within the Kubernetes ecosystem.
Recommended
These are the backgrounds the certifying body suggests. Check the vendor's own page for anything it formally requires.
What this exam covers
Use the published domain weights to plan your study. Practice results do not predict your certification exam score.
01Minimize Microservice Vulnerabilities
Topics
- Use appropriate pod security standards
- Manage Kubernetes secrets
- Understand and implement isolation techniques (multi-tenancy, sandboxed containers, etc.)
- Implement Pod-to-Pod encryption (Cilium, Istio)
Learning objectives
- Use appropriate pod security standards
- Manage Kubernetes secrets
- Understand and implement isolation techniques (multi-tenancy, sandboxed containers, etc.)
- Implement Pod-to-Pod encryption (Cilium, Istio)
02Monitoring, Logging and Runtime Security
Topics
- Perform behavioral analytics to detect malicious activities
- Detect threats within physical infrastructure, apps, networks, data, users and workloads
- Investigate and identify phases of attack and bad actors within the environment
- Ensure immutability of containers at runtime
- Use Kubernetes audit logs to monitor access
Learning objectives
- Perform behavioral analytics to detect malicious activities
- Detect threats within physical infrastructure, apps, networks, data, users and workloads
- Investigate and identify phases of attack and bad actors within the environment
- Ensure immutability of containers at runtime
- Use Kubernetes audit logs to monitor access
03Supply Chain Security
Topics
- Minimize base image footprint
- Understand your supply chain (e.g. SBOM, CI/CD, artifact repositories)
- Secure your supply chain (permitted registries, sign and validate artifacts, etc.)
- Perform static analysis of user workloads and container images (e.g. Kubesec, KubeLinter)
Learning objectives
- Minimize base image footprint
- Understand your supply chain (e.g. SBOM, CI/CD, artifact repositories)
- Secure your supply chain (permitted registries, sign and validate artifacts, etc.)
- Perform static analysis of user workloads and container images (e.g. Kubesec, KubeLinter)
04Cluster Hardening
Topics
- Use Role Based Access Controls to minimize exposure
- Exercise caution in using service accounts e.g. disable defaults, minimize permissions on newly created ones
- Restrict access to Kubernetes API
- Upgrade Kubernetes to avoid vulnerabilities
Learning objectives
- Use Role Based Access Controls to minimize exposure
- Exercise caution in using service accounts e.g. disable defaults, minimize permissions on newly created ones
- Restrict access to Kubernetes API
- Upgrade Kubernetes to avoid vulnerabilities
05Cluster Setup
Topics
- Use Network security policies to restrict cluster level access
- Use CIS benchmark to review the security configuration of Kubernetes components (etcd, kubelet, kubedns, kubeapi)
- Properly set up Ingress with TLS
- Protect node metadata and endpoints
- Verify platform binaries before deploying
Learning objectives
- Use Network security policies to restrict cluster level access
- Use CIS benchmark to review the security configuration of Kubernetes components (etcd, kubelet, kubedns, kubeapi)
- Properly set up Ingress with TLS
- Protect node metadata and endpoints
- Verify platform binaries before deploying
06System Hardening
Topics
- Minimize host OS footprint (reduce attack surface)
- Using least-privilege identity and access management
- Minimize external access to the network
- Appropriately use kernel hardening tools such as AppArmor, seccomp
Learning objectives
- Minimize host OS footprint (reduce attack surface)
- Using least-privilege identity and access management
- Minimize external access to the network
- Appropriately use kernel hardening tools such as AppArmor, seccomp