CKS Discount Code: 30% Off with RUSHABH30

Put RUSHABH30 in the coupon field at checkout on training.linuxfoundation.org and the Certified Kubernetes Security Specialist (CKS) exam drops from $445 to about $311, a saving of roughly $134. It's an evergreen partner code with no expiry, issued directly to me through the official Linux Foundation Education affiliate program.

Quick facts

Format	Performance-based (live terminal, real cluster)
Duration	2 hours
List price	$445
With RUSHABH30	~$311
Prerequisite	an active CKA certification

Who this is for

Security engineers and platform engineers who already hold the CKA and want the strongest Kubernetes security credential available.

What it covers

• Cluster setup and hardening
• System hardening
• Minimizing microservice vulnerabilities
• Supply chain security
• Monitoring, logging, and runtime security

Domain names above reflect the current official curriculum's topic areas; exact weightings are set by the Linux Foundation/CNCF and revised periodically, so check their published curriculum for the current breakdown.

Why it's worth it

CKS is the one Linux Foundation cert with a real prerequisite. You need an active CKA to even sit it. Which is exactly why it carries weight on a CV. It signals you can secure a cluster end to end: hardening, supply-chain integrity, runtime detection, not just administer one.

Prep tips

• Get your CKA active first; the Linux Foundation checks this at scheduling time, so leave a buffer if yours is close to expiring.
• Spend real practice time on tools the exam actually uses hands-on, such as Falco for runtime detection, network policies, and admission controllers, rather than just reading security theory.
• Supply-chain security (image scanning, signing, sane base images) is a newer domain relative to the older CKA/CKAD content; don't skip it assuming it's a small footnote.

How to use the code

1. Add the CKS exam to your cart on training.linuxfoundation.org.
2. Enter RUSHABH30 in the coupon field at checkout.
3. The total drops 30%. RUSHABH30 works on the exam alone, the exam bundled with the official prep course, and a retake within your eligibility window.