Two things in one regeneration of the data files:
- Stripped "pauses" and "paused_seconds" from all 10 existing entries, so the
data matches the code change in 01877f0 rather than leaving historical
telemetry behind. Nothing else in those entries was touched.
- Attempt #11: Simulator Set C, 163/163. Recorded for completeness, but it is
not a measure of skill - the tasks were completed programmatically to verify
the new bank end to end on a freshly seeded cluster, not solved by hand.
Set C tasks carry set="c" and are excluded from POOL, so this does not
affect `./exam drill weak` or `./exam drill all` selection; `./exam sim c`
re-runs the full set regardless of history.
The genuine result from this week is attempt #10: an 18-task drill at 39.7%,
8 of 11 attempted tasks at full credit, 7 never opened.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NziZdvBvy7CpEAAbZNgp8i
Close two of the four CKA-relevant gaps identified against Killercoda's
scenario catalog:
- Q123 (TSHOOT, hard): kube-apiserver itself crash-loops on a static-pod
manifest typo, same pattern as the existing scheduler/controller-manager
failures (Q20/Q118) but with the added twist that kubectl is completely
unusable until it's fixed, forcing node-level diagnosis (crictl,
journalctl).
- Q124 (ARCH, hard): produce a real node-join handoff file by
independently computing the CA discovery hash kubeadm join verifies
against, and finding the API server's actual in-cluster address rather
than the local kubeconfig's port-forwarded one.
Cluster-upgrade and operator-authoring remain unimplemented and are
documented as genuine infrastructure gaps in CKA_SOLUTIONS_EXPLAINED.md
(kind's node images have no apt-installable multi-version kubelet/kubeadm,
and operator authoring needs a real built/pushed image) rather than faked.
Also updates the Killercoda cross-reference table with the gaps closed,
and logs an ended drill session to history-cka.jsonl/weak-spots-cka.md.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
