This page was exported from Free Exams Dumps Materials [ http://exams.dumpsmaterials.com ] Export date:Tue Dec 3 17:11:08 2024 / +0000 GMT ___________________________________________________ Title: [Dec-2023] CKAD exam torrent Linux Foundation study guide [Q10-Q29] --------------------------------------------------- [Dec-2023] CKAD exam torrent Linux Foundation study guide Use Valid New CKAD Test Notes & CKAD Valid Exam Guide Linux Foundation Certified Kubernetes Application Developer (CKAD) Exam is a certification program offered by the Linux Foundation to validate the skills and knowledge of developers who work with Kubernetes. Kubernetes is an open-source container orchestration system that automates the deployment, scaling, and management of containerized applications. It has become the de facto standard for container orchestration, and the CKAD certification is recognition of the skills required to deploy and manage applications on Kubernetes. What do I need to know to use it? You should understand the following key concepts to use Kubernetes correctly. Exponentially growing technology. Bookmarks are easy to manage. Bookmarks are used to keep track of the apps you have on your computer. It's used to define data volumes that are shared between various machines. The best practices will be provided on the matter. It's complex because it is based on a microservices architecture. Rocketman Technologies is a software development company that provides leading edge and innovative solutions to take your business to the next level. Separate a service from a specific deployment. It also integrates with various platforms. C is the de facto programming language for Linux systems. Objectives are achieved in a way that suits usage scenarios best. Download a free trial of Kubernetes today. It is based on four major objectives. The following things can be automated with Kubernetes. Cisco is the global leader in IT and communications technology.   Q10. ContextTask:1- Update the Propertunel scaling configuration of the Deployment web1 in the ckad00015 namespace setting maxSurge to 2 and maxUnavailable to 592- Update the web1 Deployment to use version tag 1.13.7 for the Ifconf/nginx container image.3- Perform a rollback of the web1 Deployment to its previous version Solution:Q11. ContextContextAs a Kubernetes application developer you will often find yourself needing to update a running application.TaskPlease complete the following:* Update the app deployment in the kdpd00202 namespace with a maxSurge of 5% and a maxUnavailable of 2%* Perform a rolling update of the web1 deployment, changing the Ifccncf/ngmx image version to 1.13* Roll back the app deployment to the previous version Solution:Q12. ContextTask:Create a Pod named nginx resources in the existing pod resources namespace.Specify a single container using nginx:stable image.Specify a resource request of 300m cpus and 1G1 of memory for the Pod’s container. Solution:Q13. Refer to Exhibit.Task:1) Create a secret named app-secret in the default namespace containing the following single key-value pair:Key3: value12) Create a Pod named ngnix secret in the default namespace.Specify a single container using the nginx:stable image.Add an environment variable named BEST_VARIABLE consuming the value of the secret key3. Solution:Q14. ContextA user has reported an aopticauon is unteachable due to a failing livenessProbe .TaskPerform the following tasks:* Find the broken pod and store its name and namespace to /opt/KDOB00401/broken.txt in the format:The output file has already been created* Store the associated error events to a file /opt/KDOB00401/error.txt, The output file has already been created. You will need to use the -o wide output specifier with your command* Fix the issue. See the solution below.ExplanationSolution:Create the Pod:kubectl create-f http://k8s.io/docs/tasks/configure-pod-container/exec-liveness.yamlWithin 30 seconds, view the Pod events:kubectl describe pod liveness-execThe output indicates that no liveness probes have failed yet:FirstSeen LastSeen Count From SubobjectPath Type Reason Message——— ——– —– —- ————- ——– —— ——-24s 24s 1 {default-scheduler } Normal Scheduled Successfully assigned liveness-exec to worker023s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Pulling pulling image“gcr.io/google_containers/busybox”23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Pulled Successfully pulled image“gcr.io/google_containers/busybox”23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Created Created container with docker id86849c15382e; Security:[seccomp=unconfined]23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Started Started container with docker id86849c15382eAfter 35 seconds, view the Pod events again:kubectl describe pod liveness-execAt the bottom of the output, there are messages indicating that the liveness probes have failed, and the containers have been killed and recreated.FirstSeen LastSeen Count From SubobjectPath Type Reason Message——— ——– —– —- ————-37s 37s 1 {default-scheduler } Normal Scheduled Successfully assigned liveness-exec to worker036s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Pulling pulling image“gcr.io/google_containers/busybox”36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Pulled Successfully pulled image“gcr.io/google_containers/busybox”36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Created Created container with docker id86849c15382e; Security:[seccomp=unconfined]36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Started Started container with docker id86849c15382e2s 2s 1 {kubelet worker0} spec.containers{liveness} Warning Unhealthy Liveness probe failed: cat: can’t open‘/tmp/healthy’: No such file or directoryWait another 30 seconds, and verify that the Container has been restarted:kubectl get pod liveness-execThe output shows that RESTARTS has been incremented:NAME READY STATUS RESTARTS AGEliveness-exec 1/1 Running 1 mQ15. Refer to Exhibit.Set Configuration Context:[student@node-1] $ | kubectlConfig use-context k8sContextYou sometimes need to observe a pod’s logs, and write those logs to a file for further analysis.TaskPlease complete the following;* Deploy the counter pod to the cluster using the provided YAMLspec file at /opt/KDOB00201/counter.yaml* Retrieve all currently available application logs from the running pod and store them in the file /opt/KDOB0020l/log_Output.txt, which has already been created Solution:To deploy the counter pod to the cluster using the provided YAML spec file, you can use the kubectl apply command. The apply command creates and updates resources in a cluster.kubectl apply -f /opt/KDOB00201/counter.yamlThis command will create the pod in the cluster. You can use the kubectl get pods command to check the status of the pod and ensure that it is running.kubectl get podsTo retrieve all currently available application logs from the running pod and store them in the file /opt/KDOB0020l/log_Output.txt, you can use the kubectl logs command. The logs command retrieves logs from a container in a pod.kubectl logs -f <pod-name> > /opt/KDOB0020l/log_Output.txtReplace <pod-name> with the name of the pod.You can also use -f option to stream the logs.kubectl logs -f <pod-name> > /opt/KDOB0020l/log_Output.txt &This command will retrieve the logs from the pod and write them to the /opt/KDOB0020l/log_Output.txt file.Please note that the above command will retrieve all logs from the pod, including previous logs. If you want to retrieve only the new logs that are generated after running the command, you can add the –since flag to the kubectl logs command and specify a duration, for example –since=24h for logs generated in the last 24 hours.Also, please note that, if the pod has multiple containers, you need to specify the container name using -c option.kubectl logs -f <pod-name> -c <container-name> > /opt/KDOB0020l/log_Output.txt The above command will redirect the logs of the specified container to the file.Q16. TaskYou have rolled out a new pod to your infrastructure and now you need to allow it to communicate with the web and storage pods but nothing else. Given the running pod kdsn00201 -newpod edit it to use a network policy that will allow it to send and receive traffic only to and from the web and storage pods. See the solution below.ExplanationapiVersion: networking.k8s.io/v1kind: NetworkPolicymetadata:name: internal-policynamespace: defaultspec:podSelector:matchLabels:name: internalpolicyTypes:– Egress– Ingressingress:– {}egress:– to:– podSelector:matchLabels:name: mysqlports:– protocol: TCPport: 3306– to:– podSelector:matchLabels:name: payrollports:– protocol: TCPport: 8080– ports:– port: 53protocol: UDP– port: 53protocol: TCPQ17. ContextYour application’s namespace requires a specific service account to be used.TaskUpdate the app-a deployment in the production namespace to run as the restrictedservice service account. The service account has already been created. See the solution below.ExplanationSolution:Q18. ContextDevelopers occasionally need to submit pods that run periodically.TaskFollow the steps below to create a pod that will start at a predetermined time and]which runs to completion only once each time it is started:* Create a YAML formatted Kubernetes manifest /opt/KDPD00301/periodic.yaml that runs the following shell command: date in a single busybox container. The command should run every minute and must complete within 22 seconds or be terminated oy Kubernetes. The Cronjob namp and container name should both be hello* Create the resource in the above manifest and verify that the job executes successfully at least once See the solution below. ExplanationSolution:Q19. Refer to Exhibit.ContextYou are tasked to create a secret and consume the secret in a pod using environment variables as follow:Task* Create a secret named another-secret with a key/value pair; key1/value4* Start an nginx pod named nginx-secret using container image nginx, and add an environment variable exposing the value of the secret key key 1, using COOL_VARIABLE as the name for the environment variable inside the pod Solution:Q20. Task:Update the Deployment app-1 in the frontend namespace to use the existing ServiceAccount app. See the solution below.ExplanationSolution:Text Description automatically generatedQ21. ContextIt is always useful to look at the resources your applications are consuming in a cluster.Task* From the pods running in namespace cpu-stress , write the name only of the pod that is consuming the most CPU to file /opt/KDOBG030l/pod.txt, which has already been created. See the solution below.ExplanationSolution:Q22. Refer to Exhibit.TaskYou are required to create a pod that requests a certain amount of CPU and memory, so it gets scheduled to-a node that has those resources available.* Create a pod named nginx-resources in the pod-resources namespace that requests a minimum of 200m CPU and 1Gi memory for its container* The pod should use the nginx image* The pod-resources namespace has already been created Solution:Q23. Refer to Exhibit.Task:Update the Pod ckad00018-newpod in the ckad00018 namespace to use a NetworkPolicy allowing the Pod to send and receive traffic only to and from the pods web and db Solution:Q24. ContextTask:The pod for the Deployment named nosql in the craytisn namespace fails to start because its container runs out of resources.Update the nosol Deployment so that the Pod:1) Request 160M of memory for its Container2) Limits the memory to half the maximum memory constraint set for the crayfah name space. Solution:Q25. Task:1) Create a secret named app-secret in the default namespace containing the following single key-value pair:Key3: value12) Create a Pod named ngnix secret in the default namespace.Specify a single container using the nginx:stable image.Add an environment variable named BEST_VARIABLE consuming the value of the secret key3. See the solution below.ExplanationSolution:Text Description automatically generatedText Description automatically generatedQ26. ContextAnytime a team needs to run a container on Kubernetes they will need to define a pod within which to run the container.TaskPlease complete the following:* Create a YAML formatted pod manifest/opt/KDPD00101/podl.yml to create a pod named app1 that runs a container named app1cont using image Ifccncf/arg-output with these command line arguments: -lines 56 -F* Create the pod with the kubect1 command using the YAML file created in the previous step* When the pod is running display summary data about the pod in JSON format using the kubect1 command and redirect the output to a file named /opt/KDPD00101/out1.json* All of the files you need to work with have been created, empty, for your convenience Solution:Q27. ContextTask:A Dockerfile has been prepared at -/human-stork/build/Dockerfile1) Using the prepared Dockerfile, build a container image with the name macque and lag 3.0. You may install and use the tool of your choice.2) Using the tool of your choice export the built container image in OC-format and store it at -/human stork/macque 3.0 tar Solution:Q28. Exhibit:ContextAs a Kubernetes application developer you will often find yourself needing to update a running application.TaskPlease complete the following:* Update the app deployment in the kdpd00202 namespace with a maxSurge of 5% and a maxUnavailable of 2%* Perform a rolling update of the web1 deployment, changing the Ifccncf/ngmx image version to 1.13* Roll back the app deployment to the previous version  Solution:  Solution: Q29. Exhibit:ContextA project that you are working on has a requirement for persistent data to be available.TaskTo facilitate this, perform the following tasks:* Create a file on node sk8s-node-0 at /opt/KDSP00101/data/index.html with the content Acct=Finance* Create a PersistentVolume named task-pv-volume using hostPath and allocate 1Gi to it, specifying that the volume is at /opt/KDSP00101/data on the cluster’s node. The configuration should specify the access mode of ReadWriteOnce . It should define the StorageClass name exam for the PersistentVolume , which will be used to bind PersistentVolumeClaim requests to this PersistenetVolume.* Create a PefsissentVolumeClaim named task-pv-claim that requests a volume of at least 100Mi and specifies an access mode of ReadWriteOnce* Create a pod that uses the PersistentVolmeClaim as a volume with a label app: my-storage-app mounting the resulting volume to a mountPath /usr/share/nginx/html inside the pod  Solution:  Solution:  Loading … CKAD Exam questions and answers: https://www.dumpsmaterials.com/CKAD-real-torrent.html --------------------------------------------------- Images: https://exams.dumpsmaterials.com/wp-content/plugins/watu/loading.gif https://exams.dumpsmaterials.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2023-12-15 09:22:43 Post date GMT: 2023-12-15 09:22:43 Post modified date: 2023-12-15 09:22:43 Post modified date GMT: 2023-12-15 09:22:43