Certified Kubernetes Administrator (CKA) Practice Q&A

Begin with a warm welcome to the CJ certification exam introduction, where the video highlights network policies, sidecars, and RBAC policies with diagrams to help you ace the CPA exam.

Master the certified Kubernetes administrator exam with 30 practice questions and answers, using hands-on playgrounds and scenarios to build real-world Kubernetes administration skills.

Explore official Kubernetes documentation on kubernetes.io, practice YAML for pods and deployments, and work with persistent volumes (PV) and persistent volume claims (PVC); use kubectl apply and study the cheat sheet.

Diagnose a pending pod by inspecting the pod configuration for PVC/PV issues, fix a typo in the PVC, save the YAML, then delete and recreate the pod.

Learn how taints cause pending pods and how to apply tolerations in the pod spec to schedule on tainted nodes, demonstrated with a httpd pod.

Troubleshoot a Kubernetes pod scheduling issue in the cka practice q&a course by creating a BusyBox pod, checking its node, and manually rescheduling from maintenance mode on node zero one.

Implement an ingress network policy on the back end pod to allow port 3306 from the application pod, blocking front end access, using the YAML with TR=back end and TR=application.

Explore a Kubernetes network policy scenario that restricts DB pod access from service pods in project B to DB pods in project A, using labels and YAML to enforce ingress.

Add a sidecar container to an existing pod to tail logs from a shared volume using BusyBox 1.28, by updating the yaml and recreating the pod.

Create a cron job named my job using BusyBox image that prints the current date and time to the console every two minutes, and save pod log to log.txt.

Tackle CKA practice questions on JSON path and cluster troubleshooting. Identify schedulable nodes, save node name and count to node.txt, and deploy a nginx web pod while diagnosing kubelet issues.

Join node zero one to the cluster by running kubeadm join on the node after obtaining the token from the master, then deploy a web pod using nginx.

Apply an egress network policy to restrict web pod egress to service pods on port 8080. Block connections from web pods in the default namespace to application and DB pods.

Create a GitOps service account in the project one namespace, define a role to create secrets and configmaps, and bind it with a role binding; verify access rights.

Demonstrates configuring an nginx ingress to route Europe and Asia deployments via host-based rules on world.universe.mine, using YAML and ingress resources.

Deploy a Kubernetes daemonset in namespace project-one to run httpd-alpine pods on every node, with resource requests of 20m cpu and 20Mi memory and label id: daemon-imp across the cluster.

Learn to take, verify, and restore etcd snapshots by updating the etcd pod volume to the backup location and applying a restoration in a Kubernetes cluster.

Learn how to create an etcd snapshot, restore an old backup to the etcd backup directory, and update the static etcd pod's volume mount path to the new backup location.

Learn practical debugging with event logs in the certified kubernetes administrator context, including retrieving container logs, saving IDs and events, restarting containers, and exporting cluster events for analysis.

Identify and delete the highest priority pod in the management namespace, using yaml and priority classes to compare priorities and remove the lower-priority pod when a higher priority pod deploys.

Demonstrate adding an existing pod to a new replica set by creating a deployment.yaml for a web app, with nginx and three replicas, using the existing pod's labels.

Create config maps from literal data and YAML, then deploy a pod that uses a config map key as an environment variable and mounts the other map at /etc/burke.

This lecture explains sorting pods in the Safari namespace by creation time, demonstrates ascending and descending options, and saves the exact command to /root/pod_timestamp.txt for the examination.

Cordon a node to make it unschedulable, deploy nginx 1.16 with three replicas, ensure pods run on the other node, then uncordon to restore schedulability and spread deployments.

Drain the k worker node by marking it unschedulable and rescheduling pods to another node, handling a local-storage drain error with a delete command directory data argument.

Learn the kubernetes cluster upgrade process: drain the control plane and worker nodes, upgrade master and worker to 1.20.7, and practice on a Debian-based lab cluster using documented commands.

Add an init container in the pod yaml to create a config.txt in a work directory via a shared emptyDir volume. If not detected, the pod exits.