Certification
Four hours, one broken cluster
No multiple choice. You are given an environment, a set of failures and a list of outcomes to reach.
01
Book
Any weekday, any hour, no proctoring theatre — the environment is unique per candidate.
02
Sit
Four hours in a live environment with the documentation available. Using it is the job.
03
Grade
Automated checks on outcomes, plus a human review of anything the checks flag as ambiguous.
04
Result
Within three working days, with a report showing exactly which outcomes you reached.
Certifications
| Certification | Duration | Pass rate | Valid for | Fee |
|---|---|---|---|---|
| Kubernetes Operations | 4 h | 51% | 3 years | €240 |
| Linux Performance | 4 h | 44% | 3 years | €240 |
| Postgres Administration | 3 h | 58% | 3 years | €190 |
| Distributed Systems Design | 4 h | 38% | 3 years | €290 |
| Applied Cryptography | 3 h | 41% | 3 years | €240 |
Pass rates are published deliberately. A certification with a 95% pass rate tells an employer nothing. One attempt is included with a subscription; retakes are half price and there is a 14-day cooling-off period between attempts.