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Kubernetes CKS Certification

CKS · Performance-based

Last updated: March 31, 2026

Exam Syllabus & Domains

The Kubernetes CKS certification exam covers the following domains. Focus your training time proportionally to each domain's weight.

Domain 1 10%

Cluster Setup

  • 1.1 Use network policies to restrict cluster-level access
  • 1.2 Use CIS benchmark to review the security configuration of Kubernetes components
  • 1.3 Properly set up Ingress objects with security control
  • 1.4 Protect node metadata and endpoints
  • 1.5 Minimize use of and access to GUI elements
CIS Kubernetes Benchmark (kube-bench)NetworkPolicy Default Deny RulesIngress TLS ConfigurationMetadata Protection (Cloud Provider)Kubernetes Dashboard SecurityNode Port RestrictionsAPI Server Admission ControllersRestricting External Access PatternsNetwork Segmentation
Domain 2 15%

Cluster Hardening

  • 2.1 Restrict access to Kubernetes API
  • 2.2 Use role-based access controls to minimize exposure
  • 2.3 Exercise caution in using service accounts
  • 2.4 Update Kubernetes frequently
RBAC Least-Privilege ConfigurationService Account Token Auto-Mount DisablingService Account Secret RestrictionsAPI Server Authentication MethodsAPI Server Authorization Modes (RBAC, Node, Webhook)Anonymous Authentication DisablingKubernetes Version Upgrade SecurityAudit Policy Configurationkubectl Impersonation for Testing
Domain 3 15%

System Hardening

  • 3.1 Minimize host OS footprint (reduce attack surface)
  • 3.2 Minimize IAM roles
  • 3.3 Minimize external access to the network
  • 3.4 Appropriately use kernel hardening tools (AppArmor, seccomp)
AppArmor Profiles for ContainersSeccomp Profiles (RuntimeDefault, Custom)Syscall Filtering and RestrictionMinimize Installed Packages on NodesDisable Unnecessary ServicesHost Filesystem Access RestrictionsLinux Capabilities (drop ALL, add specific)Read-Only Root FilesystemPrivilege Escalation Prevention (allowPrivilegeEscalation: false)
Domain 4 20%

Minimize Microservice Vulnerabilities

  • 4.1 Set up appropriate OS-level security domains
  • 4.2 Manage Kubernetes secrets
  • 4.3 Use container runtime sandboxes in multi-tenant environments
  • 4.4 Implement pod-to-pod encryption using mTLS
  • 4.5 Use Pod Security Standards and admission controllers
Pod Security Standards (Restricted, Baseline, Privileged)Pod Security Admission ControllerOPA Gatekeeper ConstraintsSecurityContext ConfigurationContainer Runtime Sandboxing (gVisor, Kata Containers)Secrets Encryption at Rest (EncryptionConfiguration)External Secrets Management (Vault Integration)mTLS with Service Mesh (Istio, Linkerd)RuntimeClass for Sandbox SelectionVault CSI Provider
Domain 5 20%

Supply Chain Security

  • 5.1 Minimize base image footprint
  • 5.2 Secure your supply chain (allowlist registries, sign and validate images)
  • 5.3 Use static analysis of user workloads (Kubesec, OPA Conftest)
  • 5.4 Scan images for known vulnerabilities
Minimal Base Images (distroless, Alpine)Multi-Stage Dockerfile BuildsImage Vulnerability Scanning (Trivy, Grype)ImagePolicyWebhook Admission ControllerPrivate Registry AllowlistingImage Signing and Verification (Cosign, Notary)Static Manifest Analysis (Kubesec, Conftest)Dockerfile Best Practices for SecuritySoftware Bill of Materials (SBOM)
Domain 6 20%

Monitoring, Logging & Runtime Security

  • 6.1 Perform behavioral analytics of syscall process and file activities
  • 6.2 Detect threats within physical infrastructure, apps, networks, data, users
  • 6.3 Detect all phases of attack regardless of where it occurs
  • 6.4 Perform deep analytical investigation and identification of bad actors
  • 6.5 Ensure immutability of containers at runtime
  • 6.6 Use Audit Logs to monitor access
Falco Runtime Threat DetectionFalco Rules and Custom RulesKubernetes Audit Logging (Policy Stages)Audit Log Backend ConfigurationImmutable Container FilesystemsContainer Drift DetectionSysdig for Forensic AnalysisBehavioral Anomaly DetectionRead-Only Root Filesystem Enforcement

Where to Focus Your Study Time

Domains with higher weight have more exam questions — allocate your study hours accordingly.

D1 Cluster Setup
10%
D2 Cluster Hardening
15%
D3 System Hardening
15%
D4 Minimize Microservice Vulnerabilities
20%
D5 Supply Chain Security
20%
D6 Monitoring, Logging & Runtime Security
20%

Study Tips

Free Study Resources

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Study Roadmap

Week-by-week study plan with free resources

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Study Tracker

Track objective completion with progress dashboard

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Cost Calculator

Total cost breakdown and ROI analysis

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Practice Quiz

Test your knowledge with free practice questions

Practice Quiz

Test your knowledge before the exam with our free practice quiz.

Take the Kubernetes CKS Practice Quiz

Get the Kubernetes CKS Study Planner

Fillable PDF with 10-week schedule, domain trackers, flashcard templates, progress tracking, and quick reference sheets. Available in Standard, ADHD-Friendly, Dark Mode, and 4-Format Bundle.

Get the Study Planner — $5.99

Also available as a 4-Format Bundle for $15.99

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Free Training Resources

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Frequently Asked Questions

What is the Kubernetes CKS certification?

The Kubernetes CKS (CKS) is a professional IT certification that validates your knowledge and skills in the exam domains covered. It is recognized globally by employers and is a valuable credential for career advancement in cybersecurity and IT.

What does the Kubernetes CKS certification syllabus cover?

The Kubernetes CKS exam syllabus covers Performance-based. Each domain is weighted differently, so focus your training on higher-weighted domains first. Review the complete domain breakdown above for objectives and key concepts.

How should I study for Kubernetes CKS?

Create a structured study plan covering all exam domains, use practice tests to identify weak areas, and review key concepts regularly. A fillable study planner can help you organize your training with weekly schedules and progress tracking.

How long does it take to prepare for Kubernetes CKS?

Preparation time varies by experience level. Most candidates spend 8-12 weeks of dedicated training. Using a structured study planner with domain-by-domain breakdown helps ensure you cover all certification objectives efficiently.