CNCF · 2026 Edition
A complete preparation guide written by CNCF-certified engineers. Covers the exam format, all 6 blueprint domains, a week-by-week study plan, and proven tips for passing first time.
2–4 months
Prep time
Intermediate
Difficulty
60–90
Exam questions
67/1000
Pass mark
Exam code
CKS
Full name
Certified Kubernetes Security Specialist
Vendor
CNCF
Duration
120 minutes
Questions
~60–90 items
Passing score
67 / 1000 (scaled)
Domains covered
6 blueprint domains
Recommended experience
Foundational IT knowledge recommended
Typical prep time
2–4 months
Official CNCF blueprint weights — study time should roughly match these percentages.
Phase 1
Cluster Setup
Tip: Study the official exam objectives for this domain before practising questions.
Phase 2
Cluster Hardening
Tip: Study the official exam objectives for this domain before practising questions.
Phase 3
System Hardening
Tip: Study the official exam objectives for this domain before practising questions.
Phase 4
Minimize Microservice Vulnerabilities
Tip: Study the official exam objectives for this domain before practising questions.
Phase 5
Supply Chain Security
Tip: Study the official exam objectives for this domain before practising questions.
Phase 6
Monitoring, Logging, and Runtime Security
Tip: Study the official exam objectives for this domain before practising questions.
Study the official exam blueprint — weight percentages tell you exactly where to invest prep time.
Practise scenario-based questions regularly — every modern cert exam is scenario-heavy.
Use spaced repetition to retain what you've learned (Courseiva does this automatically).
Book your exam date once you're scoring 80%+ consistently on practice tests.
Review explanations for every wrong answer, not just the question — the 'why' is what makes it stick.
Apply everything in this guide with adaptive practice questions, AI explanations, and domain analytics.
Deep-dive explanations of the key topics tested on CKS — with exam key points and common misconceptions.