diff --git a/history-cka.jsonl b/history-cka.jsonl index d5926a3..1abda7a 100644 --- a/history-cka.jsonl +++ b/history-cka.jsonl @@ -1,10 +1,11 @@ -{"at": "2026-09-06T22:07", "mode": "drill", "hard": false, "ids": [1, 5, 6, 34, 41], "score_pct": 8.0, "earned": 2, "total": 25, "time_used": 432, "pauses": 0, "paused_seconds": 0, "results": {"1": {"pass": false, "earned": 2, "total": 6, "failed": ["ServiceAccount rbac-app/deploy-bot exists", "Role deploy-manager and RoleBinding deploy-bot-binding exist", "deploy-bot can get/list/watch/create/update/patch/delete deployments"]}, "5": {"pass": false, "earned": 0, "total": 5, "failed": ["manifest containing static-web is in /etc/kubernetes/manifests on the node", "mirror pod static-web- is Running", "image is nginx:1.27"]}, "6": {"pass": false, "earned": 0, "total": 6, "failed": ["apiserver-expiry.txt records the real expiry month and year", "CSR jane exists with signer kubernetes.io/kube-apiserver-client", "CSR jane approved and certificate issued", "jane can list pods in default (view) but not delete them"]}, "34": {"pass": false, "earned": 0, "total": 4, "failed": ["path.txt has the correct field path", "Gadget/sample created with the field = 4"]}, "41": {"pass": false, "earned": 0, "total": 4, "failed": ["apiserver and kubelet versions correct", "etcd and runtime versions correct"]}}} -{"at": "2026-09-08T19:59", "mode": "exam", "hard": false, "ids": [2, 3, 4, 8, 12, 13, 15, 16, 17, 18, 19, 20, 25, 28, 29, 30, 33, 37, 40, 42], "score_pct": 14.3, "earned": 15, "total": 105, "time_used": 2902, "pauses": 4, "paused_seconds": 113639, "results": {"2": {"pass": true, "earned": 7, "total": 7, "failed": []}, "3": {"pass": false, "earned": 0, "total": 5, "failed": ["overlay kustomization.yaml exists", "resources deployed into namespace store-prod", "store-api has 3 replicas", "Deployment and Service carry label env=prod"]}, "4": {"pass": true, "earned": 4, "total": 4, "failed": []}, "8": {"pass": false, "earned": 0, "total": 4, "failed": ["pod log-shipper Running with containers app and shipper", "volume logs is an emptyDir mounted at /var/log in both containers", "shipper's logs show lines written by app"]}, "12": {"pass": false, "earned": 0, "total": 4, "failed": ["Service shop-svc is NodePort, port 80 -> targetPort 80", "nodePort is 30080", "Service has endpoints"]}, "13": {"pass": false, "earned": 0, "total": 5, "failed": ["ingressClassName nginx and host shop.example.com", "/api (Prefix) -> api:8080", "/ (Prefix) -> web:80"]}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "17": {"pass": false, "earned": 0, "total": 8, "failed": ["node is Ready", "kubelet is active", "kubelet is enabled (survives reboot)"]}, "18": {"pass": false, "earned": 0, "total": 7, "failed": ["all payments replicas available", "Service payments has endpoints (selector fixed)", "Service targetPort matches container port 80"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "20": {"pass": false, "earned": 0, "total": 8, "failed": ["kube-scheduler static pod manifest repaired", "new pods get scheduled"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries workload=batch:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "30": {"pass": false, "earned": 0, "total": 4, "failed": ["container port 80 named app-port", "Service port 8080 -> targetPort app-port (by name)", "readiness probe uses the named port; endpoints ready"]}, "33": {"pass": false, "earned": 1, "total": 5, "failed": ["ops-44 has an aggregationRule with the right label", "aggregation populated rules from the two labelled roles", "lee can list pods and services cluster-wide"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~2h"]}, "42": {"pass": false, "earned": 0, "total": 4, "failed": ["applies to app=client-47, Egress only", "DNS rule: kube-system namespace + k8s-app=kube-dns, ports 53 UDP and TCP", "TCP 443 to 192.168.100.0/24 only"]}}} -{"at": "2026-09-10T21:07", "mode": "drill", "hard": true, "ids": [106, 112, 115, 120, 121], "score_pct": 6.5, "earned": 2, "total": 31, "time_used": 30, "pauses": 1, "paused_seconds": 175907, "results": {"106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret portal.lab.local-tls is kubernetes.io/tls with CN portal.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-14 in ac-omega (the context's namespace), 2 available, owner=ac", "Service ledger-14 port 9000 in the same namespace", "ns.txt has the namespace"]}}} -{"at": "2026-09-12T22:17", "mode": "drill", "hard": false, "ids": [1, 6, 21, 34, 41], "score_pct": 87.5, "earned": 21, "total": 24, "time_used": 534, "pauses": 1, "paused_seconds": 40270, "results": {"1": {"pass": true, "earned": 6, "total": 6, "failed": []}, "6": {"pass": false, "earned": 3, "total": 6, "failed": ["CSR jane exists with signer kubernetes.io/kube-apiserver-client", "CSR jane approved and certificate issued"]}, "21": {"pass": true, "earned": 4, "total": 4, "failed": []}, "34": {"pass": true, "earned": 4, "total": 4, "failed": []}, "41": {"pass": true, "earned": 4, "total": 4, "failed": []}}} -{"at": "2026-09-12T22:59", "mode": "drill", "hard": false, "ids": [17, 19, 37, 38, 39], "score_pct": 29.4, "earned": 10, "total": 34, "time_used": 1987, "pauses": 0, "paused_seconds": 0, "results": {"17": {"pass": false, "earned": 4, "total": 8, "failed": ["kubelet is active", "kubelet is enabled (survives reboot)"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "38": {"pass": false, "earned": 0, "total": 7, "failed": ["kube-controller-manager manifest repaired and pod Running", "a new Deployment gets a ReplicaSet and running pods"]}, "39": {"pass": false, "earned": 4, "total": 7, "failed": ["kubelet config points at a CA file that exists", "kubelet active and enabled"]}}} -{"at": "2026-09-13T01:06", "mode": "drill", "hard": false, "ids": [17, 19, 37, 38, 39], "score_pct": 29.4, "earned": 10, "total": 34, "time_used": 6649, "pauses": 0, "paused_seconds": 0, "results": {"17": {"pass": false, "earned": 4, "total": 8, "failed": ["kubelet is active", "kubelet is enabled (survives reboot)"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "38": {"pass": false, "earned": 0, "total": 7, "failed": ["kube-controller-manager manifest repaired and pod Running", "a new Deployment gets a ReplicaSet and running pods"]}, "39": {"pass": false, "earned": 4, "total": 7, "failed": ["kubelet config points at a CA file that exists", "kubelet active and enabled"]}}} -{"at": "2026-09-14T16:49", "mode": "drill", "hard": false, "ids": [3, 5, 6, 8, 12, 13, 15, 16, 17, 18, 19, 20, 25, 28, 29, 30, 33, 37, 38, 39, 40, 42, 106, 112, 115, 120, 121], "score_pct": 42.0, "earned": 63, "total": 150, "time_used": 510, "pauses": 2, "paused_seconds": 87534, "results": {"17": {"pass": true, "earned": 8, "total": 8, "failed": []}, "20": {"pass": true, "earned": 8, "total": 8, "failed": []}, "3": {"pass": true, "earned": 5, "total": 5, "failed": []}, "5": {"pass": true, "earned": 5, "total": 5, "failed": []}, "8": {"pass": true, "earned": 4, "total": 4, "failed": []}, "12": {"pass": true, "earned": 4, "total": 4, "failed": []}, "38": {"pass": true, "earned": 7, "total": 7, "failed": []}, "18": {"pass": true, "earned": 7, "total": 7, "failed": []}, "19": {"pass": false, "earned": 4, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure"]}, "6": {"pass": true, "earned": 6, "total": 6, "failed": []}, "13": {"pass": false, "earned": 0, "total": 5, "failed": ["ingressClassName nginx and host shop.example.com", "/api (Prefix) -> api:8080", "/ (Prefix) -> web:80"]}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries workload=batch:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "30": {"pass": false, "earned": 0, "total": 4, "failed": ["container port 80 named svc-http", "Service port 8080 -> targetPort svc-http (by name)", "readiness probe uses the named port; endpoints ready"]}, "33": {"pass": false, "earned": 1, "total": 5, "failed": ["ops-19 has an aggregationRule with the right label", "aggregation populated rules from the two labelled roles", "sam can list pods and services cluster-wide"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "39": {"pass": false, "earned": 0, "total": 7, "failed": ["kubelet config points at a CA file that exists", "node Ready", "kubelet active and enabled"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~2h"]}, "42": {"pass": false, "earned": 0, "total": 4, "failed": ["applies to app=client-64, Egress only", "DNS rule: kube-system namespace + k8s-app=kube-dns, ports 53 UDP and TCP", "TCP 443 to 172.16.0.0/16 only"]}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret admin.lab.local-tls is kubernetes.io/tls with CN admin.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-73 in ac-bravo (the context's namespace), 2 available, owner=ac", "Service ledger-73 port 9000 in the same namespace", "ns.txt has the namespace"]}}} -{"at": "2026-09-15T20:55", "mode": "drill", "hard": false, "ids": [13, 15, 16, 19, 25, 28, 29, 30, 33, 37, 39, 40, 42, 106, 112, 115, 120, 121], "score_pct": 41.7, "earned": 40, "total": 96, "time_used": 608, "pauses": 1, "paused_seconds": 100482, "results": {"13": {"pass": true, "earned": 5, "total": 5, "failed": []}, "19": {"pass": true, "earned": 6, "total": 6, "failed": []}, "33": {"pass": true, "earned": 5, "total": 5, "failed": []}, "30": {"pass": true, "earned": 4, "total": 4, "failed": []}, "37": {"pass": true, "earned": 6, "total": 6, "failed": []}, "39": {"pass": true, "earned": 7, "total": 7, "failed": []}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~6h"]}, "42": {"pass": true, "earned": 4, "total": 4, "failed": []}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries team=finance:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret portal.lab.local-tls is kubernetes.io/tls with CN portal.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-21 in ac-echo (the context's namespace), 2 available, owner=ac", "Service ledger-21 port 9000 in the same namespace", "ns.txt has the namespace"]}}} -{"at": "2026-09-16T19:40", "mode": "drill", "hard": false, "ids": [15, 16, 25, 28, 29, 40], "score_pct": 50.0, "earned": 14, "total": 28, "time_used": 1258, "pauses": 3, "paused_seconds": 80587, "results": {"15": {"pass": true, "earned": 6, "total": 6, "failed": []}, "25": {"pass": true, "earned": 4, "total": 4, "failed": []}, "29": {"pass": true, "earned": 4, "total": 4, "failed": []}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~24h"]}}} -{"at": "2026-09-19T12:27", "mode": "drill", "hard": false, "ids": [106, 217, 34, 202, 102, 301, 39, 13, 32, 204, 25, 2, 8, 112, 4, 109, 313, 9], "score_pct": 39.7, "earned": 48, "total": 121, "time_used": 4197, "pauses": 12, "paused_seconds": 90755, "results": {"8": {"pass": true, "earned": 4, "total": 4, "failed": []}, "34": {"pass": true, "earned": 4, "total": 4, "failed": []}, "39": {"pass": true, "earned": 7, "total": 7, "failed": []}, "13": {"pass": true, "earned": 5, "total": 5, "failed": []}, "25": {"pass": true, "earned": 4, "total": 4, "failed": []}, "301": {"pass": true, "earned": 9, "total": 9, "failed": []}, "4": {"pass": true, "earned": 4, "total": 4, "failed": []}, "9": {"pass": true, "earned": 4, "total": 4, "failed": []}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "217": {"pass": false, "earned": 0, "total": 10, "failed": ["Pod tiger-probe Running with both labels", "container.txt holds a real container ID for that Pod", "container.txt records the runtimeType", "container.log holds the httpd startup output"]}, "202": {"pass": false, "earned": 3, "total": 8, "failed": ["watchAllNamespaces=true reached the pod env", "Ledger main-ledger has currency USD and retentionDays 30"]}, "102": {"pass": false, "earned": 2, "total": 10, "failed": ["ConfigMap restore-proof-67 exists again with its original data", "etcd uses a restored data directory (manifest changed)"]}, "32": {"pass": false, "earned": 0, "total": 4, "failed": ["ResourceQuota limits pods/6, requests.cpu 1, limits.memory 2Gi", "LimitRange defaults set", "worker pods Running with defaulted requests"]}, "204": {"pass": false, "earned": 0, "total": 8, "failed": ["evicted-first.txt lists exactly the BestEffort pods", "api-qos.txt says Burstable", "guaranteed.txt names orion-ledger"]}, "2": {"pass": false, "earned": 0, "total": 7, "failed": ["/opt/cka/etcd-snapshot.db exists on the control-plane node", "snapshot is a real etcd backup (> 100 KB)"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret secure.lab.local-tls is kubernetes.io/tls with CN secure.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "109": {"pass": false, "earned": 2, "total": 8, "failed": ["native sidecar: initContainer agent with restartPolicy Always", "probes on app as specified", "Running, shared log written by agent, grace period 5"]}, "313": {"pass": false, "earned": 0, "total": 11, "failed": ["Secret classic-tls is a TLS secret with CN classic.r700.io", "both host rules route to the right Services on /", "TLS covers both hosts with classic-tls", "defaultBackend points at web-classic:80, class is nginx"]}}} +{"at": "2026-09-06T22:07", "mode": "drill", "hard": false, "ids": [1, 5, 6, 34, 41], "score_pct": 8.0, "earned": 2, "total": 25, "time_used": 432, "results": {"1": {"pass": false, "earned": 2, "total": 6, "failed": ["ServiceAccount rbac-app/deploy-bot exists", "Role deploy-manager and RoleBinding deploy-bot-binding exist", "deploy-bot can get/list/watch/create/update/patch/delete deployments"]}, "5": {"pass": false, "earned": 0, "total": 5, "failed": ["manifest containing static-web is in /etc/kubernetes/manifests on the node", "mirror pod static-web- is Running", "image is nginx:1.27"]}, "6": {"pass": false, "earned": 0, "total": 6, "failed": ["apiserver-expiry.txt records the real expiry month and year", "CSR jane exists with signer kubernetes.io/kube-apiserver-client", "CSR jane approved and certificate issued", "jane can list pods in default (view) but not delete them"]}, "34": {"pass": false, "earned": 0, "total": 4, "failed": ["path.txt has the correct field path", "Gadget/sample created with the field = 4"]}, "41": {"pass": false, "earned": 0, "total": 4, "failed": ["apiserver and kubelet versions correct", "etcd and runtime versions correct"]}}} +{"at": "2026-09-08T19:59", "mode": "exam", "hard": false, "ids": [2, 3, 4, 8, 12, 13, 15, 16, 17, 18, 19, 20, 25, 28, 29, 30, 33, 37, 40, 42], "score_pct": 14.3, "earned": 15, "total": 105, "time_used": 2902, "results": {"2": {"pass": true, "earned": 7, "total": 7, "failed": []}, "3": {"pass": false, "earned": 0, "total": 5, "failed": ["overlay kustomization.yaml exists", "resources deployed into namespace store-prod", "store-api has 3 replicas", "Deployment and Service carry label env=prod"]}, "4": {"pass": true, "earned": 4, "total": 4, "failed": []}, "8": {"pass": false, "earned": 0, "total": 4, "failed": ["pod log-shipper Running with containers app and shipper", "volume logs is an emptyDir mounted at /var/log in both containers", "shipper's logs show lines written by app"]}, "12": {"pass": false, "earned": 0, "total": 4, "failed": ["Service shop-svc is NodePort, port 80 -> targetPort 80", "nodePort is 30080", "Service has endpoints"]}, "13": {"pass": false, "earned": 0, "total": 5, "failed": ["ingressClassName nginx and host shop.example.com", "/api (Prefix) -> api:8080", "/ (Prefix) -> web:80"]}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "17": {"pass": false, "earned": 0, "total": 8, "failed": ["node is Ready", "kubelet is active", "kubelet is enabled (survives reboot)"]}, "18": {"pass": false, "earned": 0, "total": 7, "failed": ["all payments replicas available", "Service payments has endpoints (selector fixed)", "Service targetPort matches container port 80"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "20": {"pass": false, "earned": 0, "total": 8, "failed": ["kube-scheduler static pod manifest repaired", "new pods get scheduled"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries workload=batch:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "30": {"pass": false, "earned": 0, "total": 4, "failed": ["container port 80 named app-port", "Service port 8080 -> targetPort app-port (by name)", "readiness probe uses the named port; endpoints ready"]}, "33": {"pass": false, "earned": 1, "total": 5, "failed": ["ops-44 has an aggregationRule with the right label", "aggregation populated rules from the two labelled roles", "lee can list pods and services cluster-wide"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~2h"]}, "42": {"pass": false, "earned": 0, "total": 4, "failed": ["applies to app=client-47, Egress only", "DNS rule: kube-system namespace + k8s-app=kube-dns, ports 53 UDP and TCP", "TCP 443 to 192.168.100.0/24 only"]}}} +{"at": "2026-09-10T21:07", "mode": "drill", "hard": true, "ids": [106, 112, 115, 120, 121], "score_pct": 6.5, "earned": 2, "total": 31, "time_used": 30, "results": {"106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret portal.lab.local-tls is kubernetes.io/tls with CN portal.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-14 in ac-omega (the context's namespace), 2 available, owner=ac", "Service ledger-14 port 9000 in the same namespace", "ns.txt has the namespace"]}}} +{"at": "2026-09-12T22:17", "mode": "drill", "hard": false, "ids": [1, 6, 21, 34, 41], "score_pct": 87.5, "earned": 21, "total": 24, "time_used": 534, "results": {"1": {"pass": true, "earned": 6, "total": 6, "failed": []}, "6": {"pass": false, "earned": 3, "total": 6, "failed": ["CSR jane exists with signer kubernetes.io/kube-apiserver-client", "CSR jane approved and certificate issued"]}, "21": {"pass": true, "earned": 4, "total": 4, "failed": []}, "34": {"pass": true, "earned": 4, "total": 4, "failed": []}, "41": {"pass": true, "earned": 4, "total": 4, "failed": []}}} +{"at": "2026-09-12T22:59", "mode": "drill", "hard": false, "ids": [17, 19, 37, 38, 39], "score_pct": 29.4, "earned": 10, "total": 34, "time_used": 1987, "results": {"17": {"pass": false, "earned": 4, "total": 8, "failed": ["kubelet is active", "kubelet is enabled (survives reboot)"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "38": {"pass": false, "earned": 0, "total": 7, "failed": ["kube-controller-manager manifest repaired and pod Running", "a new Deployment gets a ReplicaSet and running pods"]}, "39": {"pass": false, "earned": 4, "total": 7, "failed": ["kubelet config points at a CA file that exists", "kubelet active and enabled"]}}} +{"at": "2026-09-13T01:06", "mode": "drill", "hard": false, "ids": [17, 19, 37, 38, 39], "score_pct": 29.4, "earned": 10, "total": 34, "time_used": 6649, "results": {"17": {"pass": false, "earned": 4, "total": 8, "failed": ["kubelet is active", "kubelet is enabled (survives reboot)"]}, "19": {"pass": false, "earned": 1, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure", "pod crasher Running with DB_HOST set"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "38": {"pass": false, "earned": 0, "total": 7, "failed": ["kube-controller-manager manifest repaired and pod Running", "a new Deployment gets a ReplicaSet and running pods"]}, "39": {"pass": false, "earned": 4, "total": 7, "failed": ["kubelet config points at a CA file that exists", "kubelet active and enabled"]}}} +{"at": "2026-09-14T16:49", "mode": "drill", "hard": false, "ids": [3, 5, 6, 8, 12, 13, 15, 16, 17, 18, 19, 20, 25, 28, 29, 30, 33, 37, 38, 39, 40, 42, 106, 112, 115, 120, 121], "score_pct": 42.0, "earned": 63, "total": 150, "time_used": 510, "results": {"17": {"pass": true, "earned": 8, "total": 8, "failed": []}, "20": {"pass": true, "earned": 8, "total": 8, "failed": []}, "3": {"pass": true, "earned": 5, "total": 5, "failed": []}, "5": {"pass": true, "earned": 5, "total": 5, "failed": []}, "8": {"pass": true, "earned": 4, "total": 4, "failed": []}, "12": {"pass": true, "earned": 4, "total": 4, "failed": []}, "38": {"pass": true, "earned": 7, "total": 7, "failed": []}, "18": {"pass": true, "earned": 7, "total": 7, "failed": []}, "19": {"pass": false, "earned": 4, "total": 6, "failed": ["crasher.log captured and contains the DB_HOST failure"]}, "6": {"pass": true, "earned": 6, "total": 6, "failed": []}, "13": {"pass": false, "earned": 0, "total": 5, "failed": ["ingressClassName nginx and host shop.example.com", "/api (Prefix) -> api:8080", "/ (Prefix) -> web:80"]}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries workload=batch:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "30": {"pass": false, "earned": 0, "total": 4, "failed": ["container port 80 named svc-http", "Service port 8080 -> targetPort svc-http (by name)", "readiness probe uses the named port; endpoints ready"]}, "33": {"pass": false, "earned": 1, "total": 5, "failed": ["ops-19 has an aggregationRule with the right label", "aggregation populated rules from the two labelled roles", "sam can list pods and services cluster-wide"]}, "37": {"pass": false, "earned": 1, "total": 6, "failed": ["CoreDNS Corefile forwards to the node resolver again", "in-cluster and external names resolve from a pod"]}, "39": {"pass": false, "earned": 0, "total": 7, "failed": ["kubelet config points at a CA file that exists", "node Ready", "kubelet active and enabled"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~2h"]}, "42": {"pass": false, "earned": 0, "total": 4, "failed": ["applies to app=client-64, Egress only", "DNS rule: kube-system namespace + k8s-app=kube-dns, ports 53 UDP and TCP", "TCP 443 to 172.16.0.0/16 only"]}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret admin.lab.local-tls is kubernetes.io/tls with CN admin.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-73 in ac-bravo (the context's namespace), 2 available, owner=ac", "Service ledger-73 port 9000 in the same namespace", "ns.txt has the namespace"]}}} +{"at": "2026-09-15T20:55", "mode": "drill", "hard": false, "ids": [13, 15, 16, 19, 25, 28, 29, 30, 33, 37, 39, 40, 42, 106, 112, 115, 120, 121], "score_pct": 41.7, "earned": 40, "total": 96, "time_used": 608, "results": {"13": {"pass": true, "earned": 5, "total": 5, "failed": []}, "19": {"pass": true, "earned": 6, "total": 6, "failed": []}, "33": {"pass": true, "earned": 5, "total": 5, "failed": []}, "30": {"pass": true, "earned": 4, "total": 4, "failed": []}, "37": {"pass": true, "earned": 6, "total": 6, "failed": []}, "39": {"pass": true, "earned": 7, "total": 7, "failed": []}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~6h"]}, "42": {"pass": true, "earned": 4, "total": 4, "failed": []}, "15": {"pass": false, "earned": 0, "total": 6, "failed": ["PV pv-data: 1Gi hostPath /mnt/data, RWO, Retain, class manual", "PVC pvc-data Bound to pv-data", "data-pod Running with claim mounted at /usr/share/data"]}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "25": {"pass": false, "earned": 0, "total": 4, "failed": ["cka-sim-worker carries team=finance:NoSchedule", "deployment tolerates the taint", "both pods Running on cka-sim-worker"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "29": {"pass": false, "earned": 1, "total": 4, "failed": ["deployment now references a different ConfigMap", "all pods available and see mode=new"]}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret portal.lab.local-tls is kubernetes.io/tls with CN portal.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "115": {"pass": false, "earned": 1, "total": 6, "failed": ["PVC uses a selector and is Bound to lv-nvme", "consumer Running on the nvme node with /data mounted"]}, "120": {"pass": false, "earned": 0, "total": 5, "failed": ["pod-cidr and service-cidr", "dns-ip and proxy-mode", "cka-sim-worker3 pod CIDR"]}, "121": {"pass": false, "earned": 1, "total": 6, "failed": ["Deployment ledger-21 in ac-echo (the context's namespace), 2 available, owner=ac", "Service ledger-21 port 9000 in the same namespace", "ns.txt has the namespace"]}}} +{"at": "2026-09-16T19:40", "mode": "drill", "hard": false, "ids": [15, 16, 25, 28, 29, 40], "score_pct": 50.0, "earned": 14, "total": 28, "time_used": 1258, "results": {"15": {"pass": true, "earned": 6, "total": 6, "failed": []}, "25": {"pass": true, "earned": 4, "total": 4, "failed": []}, "29": {"pass": true, "earned": 4, "total": 4, "failed": []}, "16": {"pass": false, "earned": 0, "total": 5, "failed": ["StorageClass fast-local: local-path, WaitForFirstConsumer, Delete", "fast-local is default and standard is not", "fast-claim picked up fast-local and is Bound", "fast-pod Running with claim at /data"]}, "28": {"pass": false, "earned": 0, "total": 4, "failed": ["pod Running, init container named setup completed", "emptyDir 'content' shared by both containers", "nginx serves the init-written content"]}, "40": {"pass": false, "earned": 0, "total": 5, "failed": ["join.sh contains a kubeadm join with token and CA hash", "the token in the file exists in the cluster with TTL ~24h"]}}} +{"at": "2026-09-19T12:27", "mode": "drill", "hard": false, "ids": [106, 217, 34, 202, 102, 301, 39, 13, 32, 204, 25, 2, 8, 112, 4, 109, 313, 9], "score_pct": 39.7, "earned": 48, "total": 121, "time_used": 4197, "results": {"8": {"pass": true, "earned": 4, "total": 4, "failed": []}, "34": {"pass": true, "earned": 4, "total": 4, "failed": []}, "39": {"pass": true, "earned": 7, "total": 7, "failed": []}, "13": {"pass": true, "earned": 5, "total": 5, "failed": []}, "25": {"pass": true, "earned": 4, "total": 4, "failed": []}, "301": {"pass": true, "earned": 9, "total": 9, "failed": []}, "4": {"pass": true, "earned": 4, "total": 4, "failed": []}, "9": {"pass": true, "earned": 4, "total": 4, "failed": []}, "106": {"pass": false, "earned": 0, "total": 7, "failed": ["CRD exists, Namespaced, replicas has min/max and is required", "good created with environment prod", "replicas 0 is rejected and the message was saved", "defaulting works: defaulted.spec.environment == dev"]}, "217": {"pass": false, "earned": 0, "total": 10, "failed": ["Pod tiger-probe Running with both labels", "container.txt holds a real container ID for that Pod", "container.txt records the runtimeType", "container.log holds the httpd startup output"]}, "202": {"pass": false, "earned": 3, "total": 8, "failed": ["watchAllNamespaces=true reached the pod env", "Ledger main-ledger has currency USD and retentionDays 30"]}, "102": {"pass": false, "earned": 2, "total": 10, "failed": ["ConfigMap restore-proof-67 exists again with its original data", "etcd uses a restored data directory (manifest changed)"]}, "32": {"pass": false, "earned": 0, "total": 4, "failed": ["ResourceQuota limits pods/6, requests.cpu 1, limits.memory 2Gi", "LimitRange defaults set", "worker pods Running with defaulted requests"]}, "204": {"pass": false, "earned": 0, "total": 8, "failed": ["evicted-first.txt lists exactly the BestEffort pods", "api-qos.txt says Burstable", "guaranteed.txt names orion-ledger"]}, "2": {"pass": false, "earned": 0, "total": 7, "failed": ["/opt/cka/etcd-snapshot.db exists on the control-plane node", "snapshot is a real etcd backup (> 100 KB)"]}, "112": {"pass": false, "earned": 0, "total": 7, "failed": ["Secret secure.lab.local-tls is kubernetes.io/tls with CN secure.lab.local", "Ingress web: class nginx, host, TLS secret, ssl-redirect annotation", "fp.txt matches the secret's certificate fingerprint"]}, "109": {"pass": false, "earned": 2, "total": 8, "failed": ["native sidecar: initContainer agent with restartPolicy Always", "probes on app as specified", "Running, shared log written by agent, grace period 5"]}, "313": {"pass": false, "earned": 0, "total": 11, "failed": ["Secret classic-tls is a TLS secret with CN classic.r700.io", "both host rules route to the right Services on /", "TLS covers both hosts with classic-tls", "defaultBackend points at web-classic:80, class is nginx"]}}} +{"at": "2026-09-20T17:32", "mode": "exam", "hard": true, "ids": [401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418], "score_pct": 100.0, "earned": 163, "total": 163, "time_used": 2909, "results": {"402": {"pass": true, "earned": 9, "total": 9, "failed": []}, "404": {"pass": true, "earned": 9, "total": 9, "failed": []}, "405": {"pass": true, "earned": 11, "total": 11, "failed": []}, "401": {"pass": true, "earned": 8, "total": 8, "failed": []}, "403": {"pass": true, "earned": 9, "total": 9, "failed": []}, "406": {"pass": true, "earned": 7, "total": 7, "failed": []}, "407": {"pass": true, "earned": 10, "total": 10, "failed": []}, "408": {"pass": true, "earned": 9, "total": 9, "failed": []}, "409": {"pass": true, "earned": 9, "total": 9, "failed": []}, "410": {"pass": true, "earned": 8, "total": 8, "failed": []}, "411": {"pass": true, "earned": 7, "total": 7, "failed": []}, "412": {"pass": true, "earned": 11, "total": 11, "failed": []}, "413": {"pass": true, "earned": 10, "total": 10, "failed": []}, "414": {"pass": true, "earned": 9, "total": 9, "failed": []}, "415": {"pass": true, "earned": 9, "total": 9, "failed": []}, "416": {"pass": true, "earned": 10, "total": 10, "failed": []}, "417": {"pass": true, "earned": 10, "total": 10, "failed": []}, "418": {"pass": true, "earned": 8, "total": 8, "failed": []}}} diff --git a/weak-spots-cka.md b/weak-spots-cka.md index 4a04b16..e086e0d 100644 --- a/weak-spots-cka.md +++ b/weak-spots-cka.md @@ -1,14 +1,14 @@ # CKA weak spots -_Generated by exam from 10 attempt(s); regenerated on every `end`._ +_Generated by exam from 11 attempt(s); regenerated on every `end`._ -## Domain scores (latest full exam, 2026-09-08T19:59, 14.3%) +## Domain scores (latest full exam, 2026-09-20T17:32, 100.0%) -- **ARCH** 12/266 — Cluster Architecture, Installation & Configuration (25%) -- **WORK** 1/187 — Workloads & Scheduling (15%) -- **NET** 0/179 — Services & Networking (20%) -- **STOR** 0/85 — Storage (10%) -- **TSHOOT** 2/171 — Troubleshooting (30%) +- **ARCH** 38/266 — Cluster Architecture, Installation & Configuration (25%) +- **WORK** 36/187 — Workloads & Scheduling (15%) +- **NET** 37/179 — Services & Networking (20%) +- **STOR** 19/85 — Storage (10%) +- **TSHOOT** 33/171 — Troubleshooting (30%) ## Drill next (`./exam drill weak`) @@ -151,126 +151,126 @@ _Generated by exam from 10 attempt(s); regenerated on every `end`._ ## Attempt matrix -| Q | Domain | Title | D1 | E2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | -|---|---|---|---|---|---|---|---|---|---|---|---|---| -| 1 | ARCH | RBAC for a deployment bot | 2/6 | · | · | ✓ | · | · | · | · | · | · | -| 2 | ARCH | etcd snapshot | · | ✓ | · | · | · | · | · | · | · | 0/7 | -| 3 | ARCH | Kustomize overlay | · | 0/5 | · | · | · | · | ✓ | · | · | · | -| 4 | ARCH | CustomResourceDefinition | · | ✓ | · | · | · | · | · | · | · | ✓ | -| 5 | ARCH | Static pod | 0/5 | · | · | · | · | · | ✓ | · | · | · | -| 6 | ARCH | Certificates: expiry check and user CSR | 0/6 | · | · | 3/6 | · | · | ✓ | · | · | · | -| 7 | WORK | Rolling update & scaling | · | · | · | · | · | · | · | · | · | · | -| 8 | WORK | Multi-container pod with shared volume | · | 0/4 | · | · | · | · | ✓ | · | · | ✓ | -| 9 | WORK | Scheduling with node affinity and resources | · | · | · | · | · | · | · | · | · | ✓ | -| 10 | WORK | ConfigMap and Secret consumption | · | · | · | · | · | · | · | · | · | · | -| 11 | NET | NetworkPolicy | · | · | · | · | · | · | · | · | · | · | -| 12 | NET | NodePort Service | · | 0/4 | · | · | · | · | ✓ | · | · | · | -| 13 | NET | Ingress routing | · | 0/5 | · | · | · | · | 0/5 | ✓ | · | ✓ | -| 14 | NET | Cluster DNS | · | · | · | · | · | · | · | · | · | · | -| 15 | STOR | PersistentVolume, claim and pod | · | 0/6 | · | · | · | · | 0/6 | 0/6 | ✓ | · | -| 16 | STOR | Default StorageClass and dynamic provisioning | · | 0/5 | · | · | · | · | 0/5 | 0/5 | 0/5 | · | -| 17 | TSHOOT | Node NotReady | · | 0/8 | · | · | 4/8 | 4/8 | ✓ | · | · | · | -| 18 | TSHOOT | Broken deployment and service | · | 0/7 | · | · | · | · | ✓ | · | · | · | -| 19 | TSHOOT | CrashLoopBackOff diagnosis | · | 1/6 | · | · | 1/6 | 1/6 | 4/6 | ✓ | · | · | -| 20 | TSHOOT | Control plane component failure | · | 0/8 | · | · | · | · | ✓ | · | · | · | -| 21 | ARCH | Helm release install and upgrade | · | · | · | ✓ | · | · | · | · | · | · | -| 22 | NET | Gateway API HTTPRoute | · | · | · | · | · | · | · | · | · | · | -| 23 | WORK | metrics-server repair and HPA | · | · | · | · | · | · | · | · | · | · | -| 24 | WORK | PriorityClass | · | · | · | · | · | · | · | · | · | · | -| 25 | WORK | Taints and tolerations | · | 0/4 | · | · | · | · | 0/4 | 0/4 | ✓ | ✓ | -| 26 | WORK | DaemonSet on every node | · | · | · | · | · | · | · | · | · | · | -| 27 | WORK | CronJob with a manual run | · | · | · | · | · | · | · | · | · | · | -| 28 | WORK | Init container prepares content | · | 0/4 | · | · | · | · | 0/4 | 0/4 | 0/4 | · | -| 29 | WORK | Immutable ConfigMap rotation | · | 1/4 | · | · | · | · | 1/4 | 1/4 | ✓ | · | -| 30 | NET | Named ports | · | 0/4 | · | · | · | · | 0/4 | ✓ | · | · | -| 31 | WORK | Parallel Job | · | · | · | · | · | · | · | · | · | · | -| 32 | WORK | ResourceQuota and LimitRange | · | · | · | · | · | · | · | · | · | 0/4 | -| 33 | ARCH | Aggregated ClusterRole | · | 1/5 | · | · | · | · | 1/5 | ✓ | · | · | -| 34 | ARCH | Discover a CRD field with kubectl explain | 0/4 | · | · | ✓ | · | · | · | · | · | ✓ | -| 35 | STOR | Re-bind a Released PersistentVolume | · | · | · | · | · | · | · | · | · | · | -| 36 | STOR | Data survives the pod | · | · | · | · | · | · | · | · | · | · | -| 37 | TSHOOT | Cluster DNS is broken | · | 1/6 | · | · | 1/6 | 1/6 | 1/6 | ✓ | · | · | -| 38 | TSHOOT | Deployments never create pods | · | · | · | · | 0/7 | 0/7 | ✓ | · | · | · | -| 39 | TSHOOT | kubelet misconfiguration | · | · | · | · | 4/7 | 4/7 | 0/7 | ✓ | · | ✓ | -| 40 | ARCH | kubeadm join token | · | 0/5 | · | · | · | · | 0/5 | 0/5 | 0/5 | · | -| 41 | ARCH | Component versions | 0/4 | · | · | ✓ | · | · | · | · | · | · | -| 42 | NET | Egress-only NetworkPolicy | · | 0/4 | · | · | · | · | 0/4 | ✓ | · | · | -| 43 | NET | Headless and ExternalName services | · | · | · | · | · | · | · | · | · | · | -| 101 | ARCH | Exact RBAC with an existing over-grant | · | · | · | · | · | · | · | · | · | · | -| 102 | ARCH | etcd restore | · | · | · | · | · | · | · | · | · | 2/10 | -| 103 | ARCH | Static pod on a relocated manifest path | · | · | · | · | · | · | · | · | · | · | -| 104 | ARCH | User onboarding to a working kubeconfig | · | · | · | · | · | · | · | · | · | · | -| 105 | ARCH | Kustomize with generators and patches | · | · | · | · | · | · | · | · | · | · | -| 106 | ARCH | CRD with validation and defaults | · | · | 0/7 | · | · | · | 0/7 | 0/7 | · | 0/7 | -| 107 | WORK | Spread, tolerate, prioritise — under a quota | · | · | · | · | · | · | · | · | · | · | -| 108 | WORK | Rollback to a specific revision, then pause | · | · | · | · | · | · | · | · | · | · | -| 109 | WORK | Native sidecar with probes and an exact report | · | · | · | · | · | · | · | · | · | 2/8 | -| 110 | WORK | Cluster audit to exact files | · | · | · | · | · | · | · | · | · | · | -| 111 | NET | Zero-trust namespace | · | · | · | · | · | · | · | · | · | · | -| 112 | NET | TLS Ingress with a generated certificate | · | · | 0/7 | · | · | · | 0/7 | 0/7 | · | 0/7 | -| 113 | NET | Gateway API canary with header match | · | · | · | · | · | · | · | · | · | · | -| 114 | NET | DNS down: three faults | · | · | · | · | · | · | · | · | · | · | -| 115 | STOR | Bind the right local volume | · | · | 1/6 | · | · | · | 1/6 | 1/6 | · | · | -| 116 | STOR | Migrate data between claims | · | · | · | · | · | · | · | · | · | · | -| 117 | TSHOOT | Worker node: three things wrong | · | · | · | · | · | · | · | · | · | · | -| 118 | TSHOOT | Two control-plane components down | · | · | · | · | · | · | · | · | · | · | -| 119 | TSHOOT | Application down for four reasons | · | · | · | · | · | · | · | · | · | · | -| 120 | TSHOOT | Cluster facts, exactly | · | · | 0/5 | · | · | · | 0/5 | 0/5 | · | · | -| 121 | WORK | The context's namespace | · | · | 1/6 | · | · | · | 1/6 | 1/6 | · | · | -| 122 | ARCH | Renew control-plane certificates | · | · | · | · | · | · | · | · | · | · | -| 123 | TSHOOT | Nothing works: kube-apiserver itself is down | · | · | · | · | · | · | · | · | · | · | -| 124 | ARCH | Prepare a node join without shell access to the control plane | · | · | · | · | · | · | · | · | · | · | -| 201 | ARCH | kubeconfig forensics | · | · | · | · | · | · | · | · | · | · | -| 202 | ARCH | Helm chart with CRDs, then a custom resource | · | · | · | · | · | · | · | · | · | 3/8 | -| 203 | WORK | Find the controller, then scale it | · | · | · | · | · | · | · | · | · | · | -| 204 | WORK | Which Pods get evicted first | · | · | · | · | · | · | · | · | · | 0/8 | -| 205 | ARCH | Kustomize: drop a ConfigMap, add an HPA, override in prod | · | · | · | · | · | · | · | · | · | · | -| 206 | STOR | PV, PVC and a Deployment that mounts it | · | · | · | · | · | · | · | · | · | · | -| 207 | TSHOOT | Resource usage scripts | · | · | · | · | · | · | · | · | · | · | -| 208 | ARCH | Drain a node for maintenance | · | · | · | · | · | · | · | · | · | · | -| 209 | ARCH | Query the API from inside a Pod | · | · | · | · | · | · | · | · | · | · | -| 210 | ARCH | ServiceAccount limited to two resources | · | · | · | · | · | · | · | · | · | · | -| 211 | WORK | DaemonSet on every node | · | · | · | · | · | · | · | · | · | · | -| 212 | WORK | One Pod per node, on purpose | · | · | · | · | · | · | · | · | · | · | -| 213 | NET | Convert an Ingress to Gateway API, then split on a header | · | · | · | · | · | · | · | · | · | · | -| 214 | ARCH | Certificate expiry, two ways | · | · | · | · | · | · | · | · | · | · | -| 215 | NET | Egress policy with paired destinations | · | · | · | · | · | · | · | · | · | · | -| 216 | NET | CoreDNS: back up, extend, verify | · | · | · | · | · | · | · | · | · | · | -| 217 | TSHOOT | Inspect a container with crictl | · | · | · | · | · | · | · | · | · | 0/10 | -| 301 | ARCH | etcd configuration facts | · | · | · | · | · | · | · | · | · | ✓ | -| 302 | NET | Service rules on the node | · | · | · | · | · | · | · | · | · | · | -| 303 | NET | A second Service CIDR | · | · | · | · | · | · | · | · | · | · | -| 304 | ARCH | Bound tokens versus legacy tokens | · | · | · | · | · | · | · | · | · | · | -| 305 | WORK | Schedule without the scheduler | · | · | · | · | · | · | · | · | · | · | -| 306 | STOR | Grow a volume in place | · | · | · | · | · | · | · | · | · | · | -| 307 | TSHOOT | Node accepts nothing new | · | · | · | · | · | · | · | · | · | · | -| 308 | ARCH | API resource reference card | · | · | · | · | · | · | · | · | · | · | -| 309 | WORK | A PodDisruptionBudget that blocks maintenance | · | · | · | · | · | · | · | · | · | · | -| 310 | NET | Route to something outside the cluster | · | · | · | · | · | · | · | · | · | · | -| 311 | ARCH | Image inventory across the cluster | · | · | · | · | · | · | · | · | · | · | -| 312 | WORK | A Job that fails, then one that doesn't | · | · | · | · | · | · | · | · | · | · | -| 313 | NET | Two hosts, TLS, and a default backend | · | · | · | · | · | · | · | · | · | 0/11 | -| 314 | TSHOOT | A static pod that never starts | · | · | · | · | · | · | · | · | · | · | -| 315 | STOR | Keep the data when the claim goes | · | · | · | · | · | · | · | · | · | · | -| 316 | ARCH | Plan a control-plane upgrade | · | · | · | · | · | · | · | · | · | · | -| 317 | TSHOOT | Certificates stop being issued | · | · | · | · | · | · | · | · | · | · | -| 401 | STOR | Provision geo-fence persistent storage | · | · | · | · | · | · | · | · | · | · | -| 402 | ARCH | Render a chart, then install it | · | · | · | · | · | · | · | · | · | · | -| 403 | TSHOOT | Fix the driver onboarding app | · | · | · | · | · | · | · | · | · | · | -| 404 | NET | Expose and verify the dispatch API | · | · | · | · | · | · | · | · | · | · | -| 405 | STOR | Migrate ride history to a Retain volume | · | · | · | · | · | · | · | · | · | · | -| 406 | TSHOOT | Fix ETA service connectivity | · | · | · | · | · | · | · | · | · | · | -| 407 | NET | Fleet dashboard canary with Gateway API | · | · | · | · | · | · | · | · | · | · | -| 408 | ARCH | Cluster-wide read access for the auth team | · | · | · | · | · | · | · | · | · | · | -| 409 | WORK | Add an init container to the trip logger | · | · | · | · | · | · | · | · | · | · | -| 410 | NET | Audit the CNI, then lock a namespace down | · | · | · | · | · | · | · | · | · | · | -| 411 | WORK | Priority for the rider support portal | · | · | · | · | · | · | · | · | · | · | -| 412 | WORK | Surge pricing configuration | · | · | · | · | · | · | · | · | · | · | -| 413 | ARCH | Plan the control-plane upgrade | · | · | · | · | · | · | · | · | · | · | -| 414 | TSHOOT | Fix the fare calculation pods | · | · | · | · | · | · | · | · | · | · | -| 415 | WORK | Autoscale the route planner on memory | · | · | · | · | · | · | · | · | · | · | -| 416 | NET | NetworkPolicy for the safety monitor | · | · | · | · | · | · | · | · | · | · | -| 417 | ARCH | Enforce TLS 1.3 on the booking portal | · | · | · | · | · | · | · | · | · | · | -| 418 | TSHOOT | Investigate vehicle tracker health | · | · | · | · | · | · | · | · | · | · | +| Q | Domain | Title | D1 | E2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | E11 | +|---|---|---|---|---|---|---|---|---|---|---|---|---|---| +| 1 | ARCH | RBAC for a deployment bot | 2/6 | · | · | ✓ | · | · | · | · | · | · | · | +| 2 | ARCH | etcd snapshot | · | ✓ | · | · | · | · | · | · | · | 0/7 | · | +| 3 | ARCH | Kustomize overlay | · | 0/5 | · | · | · | · | ✓ | · | · | · | · | +| 4 | ARCH | CustomResourceDefinition | · | ✓ | · | · | · | · | · | · | · | ✓ | · | +| 5 | ARCH | Static pod | 0/5 | · | · | · | · | · | ✓ | · | · | · | · | +| 6 | ARCH | Certificates: expiry check and user CSR | 0/6 | · | · | 3/6 | · | · | ✓ | · | · | · | · | +| 7 | WORK | Rolling update & scaling | · | · | · | · | · | · | · | · | · | · | · | +| 8 | WORK | Multi-container pod with shared volume | · | 0/4 | · | · | · | · | ✓ | · | · | ✓ | · | +| 9 | WORK | Scheduling with node affinity and resources | · | · | · | · | · | · | · | · | · | ✓ | · | +| 10 | WORK | ConfigMap and Secret consumption | · | · | · | · | · | · | · | · | · | · | · | +| 11 | NET | NetworkPolicy | · | · | · | · | · | · | · | · | · | · | · | +| 12 | NET | NodePort Service | · | 0/4 | · | · | · | · | ✓ | · | · | · | · | +| 13 | NET | Ingress routing | · | 0/5 | · | · | · | · | 0/5 | ✓ | · | ✓ | · | +| 14 | NET | Cluster DNS | · | · | · | · | · | · | · | · | · | · | · | +| 15 | STOR | PersistentVolume, claim and pod | · | 0/6 | · | · | · | · | 0/6 | 0/6 | ✓ | · | · | +| 16 | STOR | Default StorageClass and dynamic provisioning | · | 0/5 | · | · | · | · | 0/5 | 0/5 | 0/5 | · | · | +| 17 | TSHOOT | Node NotReady | · | 0/8 | · | · | 4/8 | 4/8 | ✓ | · | · | · | · | +| 18 | TSHOOT | Broken deployment and service | · | 0/7 | · | · | · | · | ✓ | · | · | · | · | +| 19 | TSHOOT | CrashLoopBackOff diagnosis | · | 1/6 | · | · | 1/6 | 1/6 | 4/6 | ✓ | · | · | · | +| 20 | TSHOOT | Control plane component failure | · | 0/8 | · | · | · | · | ✓ | · | · | · | · | +| 21 | ARCH | Helm release install and upgrade | · | · | · | ✓ | · | · | · | · | · | · | · | +| 22 | NET | Gateway API HTTPRoute | · | · | · | · | · | · | · | · | · | · | · | +| 23 | WORK | metrics-server repair and HPA | · | · | · | · | · | · | · | · | · | · | · | +| 24 | WORK | PriorityClass | · | · | · | · | · | · | · | · | · | · | · | +| 25 | WORK | Taints and tolerations | · | 0/4 | · | · | · | · | 0/4 | 0/4 | ✓ | ✓ | · | +| 26 | WORK | DaemonSet on every node | · | · | · | · | · | · | · | · | · | · | · | +| 27 | WORK | CronJob with a manual run | · | · | · | · | · | · | · | · | · | · | · | +| 28 | WORK | Init container prepares content | · | 0/4 | · | · | · | · | 0/4 | 0/4 | 0/4 | · | · | +| 29 | WORK | Immutable ConfigMap rotation | · | 1/4 | · | · | · | · | 1/4 | 1/4 | ✓ | · | · | +| 30 | NET | Named ports | · | 0/4 | · | · | · | · | 0/4 | ✓ | · | · | · | +| 31 | WORK | Parallel Job | · | · | · | · | · | · | · | · | · | · | · | +| 32 | WORK | ResourceQuota and LimitRange | · | · | · | · | · | · | · | · | · | 0/4 | · | +| 33 | ARCH | Aggregated ClusterRole | · | 1/5 | · | · | · | · | 1/5 | ✓ | · | · | · | +| 34 | ARCH | Discover a CRD field with kubectl explain | 0/4 | · | · | ✓ | · | · | · | · | · | ✓ | · | +| 35 | STOR | Re-bind a Released PersistentVolume | · | · | · | · | · | · | · | · | · | · | · | +| 36 | STOR | Data survives the pod | · | · | · | · | · | · | · | · | · | · | · | +| 37 | TSHOOT | Cluster DNS is broken | · | 1/6 | · | · | 1/6 | 1/6 | 1/6 | ✓ | · | · | · | +| 38 | TSHOOT | Deployments never create pods | · | · | · | · | 0/7 | 0/7 | ✓ | · | · | · | · | +| 39 | TSHOOT | kubelet misconfiguration | · | · | · | · | 4/7 | 4/7 | 0/7 | ✓ | · | ✓ | · | +| 40 | ARCH | kubeadm join token | · | 0/5 | · | · | · | · | 0/5 | 0/5 | 0/5 | · | · | +| 41 | ARCH | Component versions | 0/4 | · | · | ✓ | · | · | · | · | · | · | · | +| 42 | NET | Egress-only NetworkPolicy | · | 0/4 | · | · | · | · | 0/4 | ✓ | · | · | · | +| 43 | NET | Headless and ExternalName services | · | · | · | · | · | · | · | · | · | · | · | +| 101 | ARCH | Exact RBAC with an existing over-grant | · | · | · | · | · | · | · | · | · | · | · | +| 102 | ARCH | etcd restore | · | · | · | · | · | · | · | · | · | 2/10 | · | +| 103 | ARCH | Static pod on a relocated manifest path | · | · | · | · | · | · | · | · | · | · | · | +| 104 | ARCH | User onboarding to a working kubeconfig | · | · | · | · | · | · | · | · | · | · | · | +| 105 | ARCH | Kustomize with generators and patches | · | · | · | · | · | · | · | · | · | · | · | +| 106 | ARCH | CRD with validation and defaults | · | · | 0/7 | · | · | · | 0/7 | 0/7 | · | 0/7 | · | +| 107 | WORK | Spread, tolerate, prioritise — under a quota | · | · | · | · | · | · | · | · | · | · | · | +| 108 | WORK | Rollback to a specific revision, then pause | · | · | · | · | · | · | · | · | · | · | · | +| 109 | WORK | Native sidecar with probes and an exact report | · | · | · | · | · | · | · | · | · | 2/8 | · | +| 110 | WORK | Cluster audit to exact files | · | · | · | · | · | · | · | · | · | · | · | +| 111 | NET | Zero-trust namespace | · | · | · | · | · | · | · | · | · | · | · | +| 112 | NET | TLS Ingress with a generated certificate | · | · | 0/7 | · | · | · | 0/7 | 0/7 | · | 0/7 | · | +| 113 | NET | Gateway API canary with header match | · | · | · | · | · | · | · | · | · | · | · | +| 114 | NET | DNS down: three faults | · | · | · | · | · | · | · | · | · | · | · | +| 115 | STOR | Bind the right local volume | · | · | 1/6 | · | · | · | 1/6 | 1/6 | · | · | · | +| 116 | STOR | Migrate data between claims | · | · | · | · | · | · | · | · | · | · | · | +| 117 | TSHOOT | Worker node: three things wrong | · | · | · | · | · | · | · | · | · | · | · | +| 118 | TSHOOT | Two control-plane components down | · | · | · | · | · | · | · | · | · | · | · | +| 119 | TSHOOT | Application down for four reasons | · | · | · | · | · | · | · | · | · | · | · | +| 120 | TSHOOT | Cluster facts, exactly | · | · | 0/5 | · | · | · | 0/5 | 0/5 | · | · | · | +| 121 | WORK | The context's namespace | · | · | 1/6 | · | · | · | 1/6 | 1/6 | · | · | · | +| 122 | ARCH | Renew control-plane certificates | · | · | · | · | · | · | · | · | · | · | · | +| 123 | TSHOOT | Nothing works: kube-apiserver itself is down | · | · | · | · | · | · | · | · | · | · | · | +| 124 | ARCH | Prepare a node join without shell access to the control plane | · | · | · | · | · | · | · | · | · | · | · | +| 201 | ARCH | kubeconfig forensics | · | · | · | · | · | · | · | · | · | · | · | +| 202 | ARCH | Helm chart with CRDs, then a custom resource | · | · | · | · | · | · | · | · | · | 3/8 | · | +| 203 | WORK | Find the controller, then scale it | · | · | · | · | · | · | · | · | · | · | · | +| 204 | WORK | Which Pods get evicted first | · | · | · | · | · | · | · | · | · | 0/8 | · | +| 205 | ARCH | Kustomize: drop a ConfigMap, add an HPA, override in prod | · | · | · | · | · | · | · | · | · | · | · | +| 206 | STOR | PV, PVC and a Deployment that mounts it | · | · | · | · | · | · | · | · | · | · | · | +| 207 | TSHOOT | Resource usage scripts | · | · | · | · | · | · | · | · | · | · | · | +| 208 | ARCH | Drain a node for maintenance | · | · | · | · | · | · | · | · | · | · | · | +| 209 | ARCH | Query the API from inside a Pod | · | · | · | · | · | · | · | · | · | · | · | +| 210 | ARCH | ServiceAccount limited to two resources | · | · | · | · | · | · | · | · | · | · | · | +| 211 | WORK | DaemonSet on every node | · | · | · | · | · | · | · | · | · | · | · | +| 212 | WORK | One Pod per node, on purpose | · | · | · | · | · | · | · | · | · | · | · | +| 213 | NET | Convert an Ingress to Gateway API, then split on a header | · | · | · | · | · | · | · | · | · | · | · | +| 214 | ARCH | Certificate expiry, two ways | · | · | · | · | · | · | · | · | · | · | · | +| 215 | NET | Egress policy with paired destinations | · | · | · | · | · | · | · | · | · | · | · | +| 216 | NET | CoreDNS: back up, extend, verify | · | · | · | · | · | · | · | · | · | · | · | +| 217 | TSHOOT | Inspect a container with crictl | · | · | · | · | · | · | · | · | · | 0/10 | · | +| 301 | ARCH | etcd configuration facts | · | · | · | · | · | · | · | · | · | ✓ | · | +| 302 | NET | Service rules on the node | · | · | · | · | · | · | · | · | · | · | · | +| 303 | NET | A second Service CIDR | · | · | · | · | · | · | · | · | · | · | · | +| 304 | ARCH | Bound tokens versus legacy tokens | · | · | · | · | · | · | · | · | · | · | · | +| 305 | WORK | Schedule without the scheduler | · | · | · | · | · | · | · | · | · | · | · | +| 306 | STOR | Grow a volume in place | · | · | · | · | · | · | · | · | · | · | · | +| 307 | TSHOOT | Node accepts nothing new | · | · | · | · | · | · | · | · | · | · | · | +| 308 | ARCH | API resource reference card | · | · | · | · | · | · | · | · | · | · | · | +| 309 | WORK | A PodDisruptionBudget that blocks maintenance | · | · | · | · | · | · | · | · | · | · | · | +| 310 | NET | Route to something outside the cluster | · | · | · | · | · | · | · | · | · | · | · | +| 311 | ARCH | Image inventory across the cluster | · | · | · | · | · | · | · | · | · | · | · | +| 312 | WORK | A Job that fails, then one that doesn't | · | · | · | · | · | · | · | · | · | · | · | +| 313 | NET | Two hosts, TLS, and a default backend | · | · | · | · | · | · | · | · | · | 0/11 | · | +| 314 | TSHOOT | A static pod that never starts | · | · | · | · | · | · | · | · | · | · | · | +| 315 | STOR | Keep the data when the claim goes | · | · | · | · | · | · | · | · | · | · | · | +| 316 | ARCH | Plan a control-plane upgrade | · | · | · | · | · | · | · | · | · | · | · | +| 317 | TSHOOT | Certificates stop being issued | · | · | · | · | · | · | · | · | · | · | · | +| 401 | STOR | Provision geo-fence persistent storage | · | · | · | · | · | · | · | · | · | · | ✓ | +| 402 | ARCH | Render a chart, then install it | · | · | · | · | · | · | · | · | · | · | ✓ | +| 403 | TSHOOT | Fix the driver onboarding app | · | · | · | · | · | · | · | · | · | · | ✓ | +| 404 | NET | Expose and verify the dispatch API | · | · | · | · | · | · | · | · | · | · | ✓ | +| 405 | STOR | Migrate ride history to a Retain volume | · | · | · | · | · | · | · | · | · | · | ✓ | +| 406 | TSHOOT | Fix ETA service connectivity | · | · | · | · | · | · | · | · | · | · | ✓ | +| 407 | NET | Fleet dashboard canary with Gateway API | · | · | · | · | · | · | · | · | · | · | ✓ | +| 408 | ARCH | Cluster-wide read access for the auth team | · | · | · | · | · | · | · | · | · | · | ✓ | +| 409 | WORK | Add an init container to the trip logger | · | · | · | · | · | · | · | · | · | · | ✓ | +| 410 | NET | Audit the CNI, then lock a namespace down | · | · | · | · | · | · | · | · | · | · | ✓ | +| 411 | WORK | Priority for the rider support portal | · | · | · | · | · | · | · | · | · | · | ✓ | +| 412 | WORK | Surge pricing configuration | · | · | · | · | · | · | · | · | · | · | ✓ | +| 413 | ARCH | Plan the control-plane upgrade | · | · | · | · | · | · | · | · | · | · | ✓ | +| 414 | TSHOOT | Fix the fare calculation pods | · | · | · | · | · | · | · | · | · | · | ✓ | +| 415 | WORK | Autoscale the route planner on memory | · | · | · | · | · | · | · | · | · | · | ✓ | +| 416 | NET | NetworkPolicy for the safety monitor | · | · | · | · | · | · | · | · | · | · | ✓ | +| 417 | ARCH | Enforce TLS 1.3 on the booking portal | · | · | · | · | · | · | · | · | · | · | ✓ | +| 418 | TSHOOT | Investigate vehicle tracker health | · | · | · | · | · | · | · | · | · | · | ✓ | _E = full exam, D = drill, · = not in that session, n/m = partial credit._