Hands-on Lab·Certified Kubernetes Security Specialist
Time Management on a Performance Exam
A performance exam is two hours of tasks, and some of that time is not yours. This guide measures what the cluster costs you before you have typed anything, because the fix for those seconds is scheduling rather than speed.
Working at Exam Speed Guide 40 of 40 Beginner
- Kubernetesapiserver v1.36.4, kubelet v1.36.3
- Runtimecontainerd 2.2.6
- CNICilium 1.18.1 - tunnel/VXLAN, with Hubble relay and UI
- Host OSUbuntu 26.04 LTS, kernel 7.0.0-29
- Built withkubeadm v1.36.3 - podSubnet 10.244.0.0/16, serviceSubnet 10.96.0.0/12
- TimeAbout 12 min
- Reviewed25 August 2026
Written against the versions above. Measured on cka6001 with a warm image cache and a local trivy database, so every number here is a floor rather than a typical case.
| Server Name | IP Address | OS | Roles | CPU | RAM | HDD |
|---|---|---|---|---|---|---|
| CKA6001 | 192.168.0.46 | Ubuntu 26.04 LTS | Control Plane Node (tainted NoSchedule) | 2 Core | 4 GB | 50 GB |
| CKA6001-NODE01 | 192.168.0.47 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
| CKA6001-NODE02 | 192.168.0.48 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
Before you start
- guide 1 - the exam's shape, and where its weight sits.
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A Pod you have to wait for
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The teardown nobody budgets for
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The scan
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The clock, all together