CNCF · Official Blueprint
CKS Exam Domains & Blueprint
The official CNCF CKS exam covers 6 domains. Domain weights tell you exactly how much of the exam each topic represents — and where to invest your study time.
CKS Domain Weight Summary
Detailed Domain Breakdown
Domain 1: Cluster Setup
Covers the core concepts, terminology, and skills tested under the Cluster Setup section of the official exam blueprint.
Domain 2: Cluster Hardening
Covers the core concepts, terminology, and skills tested under the Cluster Hardening section of the official exam blueprint.
Domain 3: System Hardening
Covers the core concepts, terminology, and skills tested under the System Hardening section of the official exam blueprint.
Domain 4: Minimize Microservice Vulnerabilities
Covers the core concepts, terminology, and skills tested under the Minimize Microservice Vulnerabilities section of the official exam blueprint.
Domain 5: Supply Chain Security
Covers the core concepts, terminology, and skills tested under the Supply Chain Security section of the official exam blueprint.
Domain 6: Monitoring, Logging, and Runtime Security
Covers the core concepts, terminology, and skills tested under the Monitoring, Logging, and Runtime Security section of the official exam blueprint.
How to Use Domain Weights in Your Study Plan
The heaviest domain on the CKS is "Cluster Setup" at null%. Start here and return to it regularly.
Allocate study time proportional to domain weight — a 25% domain deserves roughly 25% of your prep hours.
Never skip a low-weight domain. A 10% domain still represents 5–7 exam questions — enough to make the difference between pass and fail.
Use JT Exams domain analytics to track your accuracy per domain automatically. The system routes extra questions to your weak areas.
Practice every CKS domain
JT Exams tracks your accuracy per domain automatically and routes you toward your weakest areas — no manual configuration needed.
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