# sailor-sh/CK-X

A mock exams for CKAD, CKA, and CKS featuring timed sessions and hands-on labs with pre-configured clusters.

Repository: https://github.com/sailor-sh/CK-X
Canonical: https://ross.abutalabs.com/products/ck-x
Homepage: https://sailor.sh
Language: Shell
License: NOASSERTION
License Family: other
Topics: cka, cka-certification, cka-exam-preparation, cka-preparation-notes, ckad, ckad-certification, ckad-exam-questions, ckad-exercises, ckad-practice, cks-exam, cks-exam-preparation, docker, kubernetes, kubernetes-exam, hacktoberfest
Last push: 2026-05-10T01:39:27+00:00

## Health v2 (maintenance only)
Score: 47/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 81, release rhythm 8, longevity 37
- inputs: {"age_days": 518, "days_push": 116, "days_rel": 515, "gap_med": null, "n_releases_24m": 1}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1140, forks 187 (observed 2026-08-28T04:03:44.373557+00:00)

## What it is
CK-X is a self-hosted mock exam simulator for the CKAD, CKA, and CKS Kubernetes certifications, providing timed exam sessions with hands-on labs running on pre-configured local clusters. It deploys via Docker (using k3d and Docker-in-Docker) and includes a web-based exam interface with real-time solution verification.

## Use cases
- practice for the CKA exam with timed hands-on labs
- prepare for CKAD certification with realistic mock exams
- simulate the CKS exam environment locally
- get hands-on Kubernetes practice clusters without cloud costs
- verify my kubectl answers automatically during practice
- run Kubernetes certification practice exams offline

## When to choose
- you want a free, self-hosted, exam-like environment with real clusters for CKAD/CKA/CKS prep
- you need timed practice sessions with automatic solution verification on your own machine
- you want to avoid queues or cloud-based lab limits of commercial exam platforms

## When to avoid
- you need a license permitting commercial or production use (BSL 1.1 restricts it)
- you want official exam questions or a pass guarantee - it is independent of CNCF/Linux Foundation
- you need certifications other than CKAD/CKA/CKS or a fully managed hosted service

## Facets
- artifact type: application
- maturity: active
- function: testing, developer-tools, container-runtime, self-hosted
- domain: education, developer-tools
- platform: windows, cross-platform, self-hosted
- tags: kubernetes-certification, cka, ckad, cks, mock-exams, exam-simulator, hands-on-labs, k3d, docker-in-docker, bsl-license, devops, containers, docker, linux, macos

## Member repositories
- sailor-sh/CK-X (main) score 47

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:44.373557+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:35:44.272460+00:00, confidence not recorded.
  - readme: https://github.com/sailor-sh/CK-X (fetched 2026-08-28T04:03:44.373557+00:00, sha cc3cd3f9cb83)
  - homepage: https://sailor.sh (fetched 2026-08-29T12:40:43.685917+00:00, sha 5269e99b3214)
  - site_page: https://sailor.sh/about-us (fetched 2026-08-29T12:40:43.694981+00:00, sha 5e4bf781c47d)
  - site_page: https://sailor.sh/need-help (fetched 2026-08-29T12:40:43.696842+00:00, sha 536c4af60644)
- Data as of 2026-08-30T08:39:29.467469+00:00.