CKA: What It Verifies
- Published
- 2026-08-01
- Content type
- Certification / Standards Authority
- Read time
- 1 min
CKA — Certified Kubernetes Administrator — is the CNCF/Linux Foundation credential for running Kubernetes clusters: installation, configuration, and day-to-day operation, tested through a hands-on, performance-based exam.
What it verifies
CKA confirms someone can administer a live cluster — cluster architecture, installation and configuration, workloads and scheduling, services and networking, storage, and troubleshooting under real conditions, not just describe Kubernetes concepts.
Who typically holds it
On the calibre° roster, CKA is checked for Platform Engineer — the role owning the Kubernetes and multi-cloud platform payments, risk, and banking services run on, alongside CKS for the security-specific layer.
How calibre° verifies it
Status is checked against the Linux Foundation's certification verification before roster eligibility, the same primary-source standard applied to every certification calibre° lists. Full procedure: Verification.
FAQ
Is CKA a prerequisite for CKS?
Yes — an active CKA certification is required before sitting the CKS exam, since CKS builds directly on cluster-administration competence.
Is CKA hands-on or written?
Hands-on — it's a performance-based exam run against a live cluster, not multiple choice.
Does CKA expire?
Yes — CNCF certifications are valid for 2 years and require recertification, which is why calibre° checks current status rather than a resume claim.
Specify the role. We calibrate the match.