I am looking into specializing in Cyber Security within the cloud space. I’ve heard that the CKS (Certified Kubernetes Security Specialist) is the top-tier cert for this. However, I’m primarily a developer. Can I jump straight to the CKS, or do I need to pass the CKA or CKAD first? If I have to choose a prerequisite, which one is more relevant for a security focus?
3 answers
To clear up the confusion: You must have a valid CKA certification before you can even sit for the CKS exam. The CKAD does not count as a prerequisite. This is because the CKS dives deep into securing the cluster at the kernel and network levels—topics like CIS Benchmarks, Network Policies, and Admission Controllers. You need the foundational administrative knowledge from the CKA (like how the API server communicates) to understand how to secure those same components. If security is your goal, your path is CKA then CKS.
Melissa, is there a specific grace period between passing the CKA and being allowed to schedule the CKS, or can you do them back-to-back?
I recently finished my CKA and moved to CKS. The focus on "Least Privilege" and Pod Security Standards is very relevant for today’s compliance-heavy environments.
Absolutely, Justin. With the shift toward Zero Trust architectures, having that CKS badge on your profile makes you stand out significantly in the current job market.
Ryan, there is no official waiting period. As soon as your CKA result is processed and shows as "Active" in your Linux Foundation portal (usually within 24-48 hours), you are eligible to take the CKS. Many people actually study for both simultaneously because the concepts of RBAC and Network Policies are foundational to both exams.