Diagnostic
A calibrated baseline test, taken solo, that maps exactly where you stand across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security before you study anything.
About the CKS exam
The Certified Kubernetes Security Specialist (CKS) is the Linux Foundation and CNCF credential for Kubernetes administrators and security practitioners, and a passed CKA is a firm prerequisite. It covers Cluster Setup (15%), Cluster Hardening (15%), System Hardening (10%), Minimize Microservice Vulnerabilities (20%), Supply Chain Security (20%), and Monitoring, Logging and Runtime Security (20%), on the Kubernetes v1.35 curriculum. The exam is a 120-minute, online-proctored, performance-based test of hands-on tasks (commonly reported as 15–20), and a score of 67% or higher passes. Registration includes one free retake and two killer.sh simulator sessions.
The Edureify Readiness System
Edureify runs on one loop: a Diagnostic maps exactly where you stand across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security before you study anything, an adaptive Roadmap turns that into a day-by-day plan weighted toward your actual gaps, a self-paced Practice Loop of questions, mock exams, and spaced review builds mastery topic by topic, and an Intervention layer steps in the moment your progress stalls. Every session feeds back into a live Readiness Score that predicts when you'll be exam-ready and names the specific topics still holding you back — not a completion percentage frozen at the end of a course.
Adaptive roadmap
A day-by-day plan built from your diagnostic and rebuilt automatically as you progress — weighted toward your actual gaps, not a generic syllabus.
Practice loop
Practice questions, mock exams, and spaced-repetition review, self-paced, with mastery tracked across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security.
Readiness prediction
A live score with a predicted ready-by date and the specific topics still dragging it down, recalculated after every session.
Certifying a team for CKS, not just yourself?
Edureify also runs as a team platform for L&D leaders: every team member gets the same self-paced diagnostic-to-readiness loop, and managers get a live dashboard showing each person's Readiness Score, predicted ready-by date, and what's specifically holding them back — plus a portfolio view for reporting on CKS readiness across the whole team.
How killer.sh approaches CKS prep
killer.sh is the CKS exam simulator the Linux Foundation includes with exam registration — two sessions, each with 36 hours of access to a realistic, hands-on environment covering cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security. Candidates consistently recommend it as the closest thing to the real exam environment, and it's often described as harder than the exam itself.
The gap is that a simulator is a test, not a study system: two sessions show you where you stand at two points in time, but they don't teach the material, plan your study, or track readiness across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security in between.
Edureify's Diagnostic maps your understanding across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security on day one, and the Readiness Score keeps updating as you practice — so you can walk into your killer.sh sessions already knowing which areas still need work.
Edureify and killer.sh, feature by feature
killer.sh is a hands-on exam simulator, not a course; two CKS sessions are included with Linux Foundation exam registration.
| Feature | Edureify | killer.sh |
|---|---|---|
| Diagnostic baseline test | Included | Varies |
| Predictive Readiness Score | Included | Not included |
| Adaptive daily roadmap | Included | Not included |
| Predicted ready-by date | Included | Not included |
| Course structure | Paid, diagnostic-driven | Exam simulator (2 sessions with registration) |
| Full-length mock / simulated exams | Included | Included |
| Full instructional curriculum | Included | Not included |
| Price accessibility | Mid-to-premium | Included with exam registration |
killer.sh is marked partial on the diagnostic row because each scored simulator session shows where you stand, though it's designed to be harder than the real exam.
See what's included in the Edureify CKS program
View the CKS programWhat each one costs
Prices move with promotions and bundle contents — check both providers before you buy.
killer.sh — CKS simulator (included with exam)
Included with exam registration (2 sessions)
Two simulator sessions in a realistic, hands-on environment covering cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security.
Access 36 hours per session
Edureify CKS Program
$49–$599
Diagnostic, adaptive roadmap, practice loop, your Readiness Score, and unlimited AI tutor sessions.
Access 1 year
Track record and outcomes
Edureify outcomes
Full-loop coverage
Diagnostic + practice
One system runs from the baseline diagnostic through practice, review, and a live Readiness Score.
killer.sh outcomes
Published pass-rate data
Not available
killer.sh doesn't publish pass-rate data for simulator users.
What studying on each one feels like
User experience — Edureify
You know where you stand
The Readiness Score tells you a predicted pass likelihood across cluster setup and hardening, system hardening, microservice security, supply chain, and runtime security, not just how much you've completed.
AI tutor with memory
Ask about a tricky troubleshooting question with context on what you've already practiced.
User experience — killer.sh
Realistic exam environment
The simulator mirrors the real remote-desktop exam setup, so exam day holds fewer surprises.
No extra cost
Two sessions come with your exam registration, so there's nothing more to buy.
Questions people ask before choosing
Is killer.sh enough to prepare for the CKS exam?
Most candidates use killer.sh as a final check after a course and lab practice; it's a simulator, not a full curriculum.
Should I use both Edureify and killer.sh?
They fit together: Edureify's diagnostic and roadmap structure your study, and your two included killer.sh sessions are a realistic check before exam day.
Does a killer.sh score tell me if I'm ready for the CKS exam?
It's a useful signal, but the simulator is intentionally harder than the exam and you only get two sessions. Edureify's Readiness Score updates after every session.
Edureify vs killer.sh: which is right for you?
Every CKS candidate should use their included killer.sh sessions — they're the most realistic rehearsal of the exam environment available.
If you want a system that tells you specifically which topic is holding you back and when you'll be ready before you get there, Edureify's diagnostic-driven loop is built for that.
Either path can get you to exam day, but only one of them tells you, with a number, whether you're actually ready to sit it.
Start with Edureify