This page was exported from Latest Exam Prep [ http://certify.vceprep.com ] Export date:Sat Sep 21 11:54:28 2024 / +0000 GMT ___________________________________________________ Title: First Attempt Guaranteed Success in CKA Exam 2023 [Q13-Q32] --------------------------------------------------- First Attempt Guaranteed Success in CKA Exam 2023 Real CKA Exam Questions are the Best Preparation Material How much CNCF CKA Certification Exam Cost and Details No. of Questions: 17 QuestionsExamination Fees: $375 USDTypes of questions: Multiple Choice QuestionsRetake Exam: FreeExamination Name: CNCF CKA Certification   NO.13 List all the pods showing name and namespace with a json path expression kubectl get pods -o=jsonpath=”{.items[*][‘metadata.name’,‘metadata.namespace’]}”NO.14 Ensure a single instance of podnginxis running on each node of theKubernetes cluster wherenginxalso represents the Image name whichhas to be used. Do not override anytaints currently in place.UseDaemonSetto complete thistask and useds-kusc00201asDaemonSet name. See the solution below.ExplanationsolutionNO.15 A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.You can ssh to the failed node using:[student@node-1] $ | ssh Wk8s-node-0You can assume elevated privileges on the node with the following command:[student@w8ks-node-0] $ | sudo -i See the solution below.ExplanationsolutionNO.16 Create a redis pod named “test-redis” and exec into that pod and create a file named “test-file.txt” with the text ‘This is called the test file’ in the path /data/redis and open another tab and exec again with the same pod and verifies file exist in the same path.  vim test-redis.yamlapiVersion: v1kind: Podmetadata:name: test-redisspec:containers:– name: redisimage: redisports:– containerPort: 6379volumeMounts:– mountPath: /data/redisname: redis-storagevolumes:– name: redis-storageemptyDir: {}kubectl apply -f redis-pod-vol.yaml// first terminalkubectl exec -it test-redis /bin/shcd /data/redisecho ‘This is called the test file’ > file.txt//open another tabkubectl exec -it test-redis /bin/shcat /data/redis/file.txt  vim test-redis.yamlapiVersion: v1kind: Podmetadata:name: test-redisspec:containers:– name: redisimage: redisports:– containerPort: 6379volumeMounts:– mountPath: /data/redisname: redis-storagevolumes:kubectl exec -it test-redis /bin/shcd /data/redisecho ‘This is called the test file’ > file.txt//open another tabkubectl exec -it test-redis /bin/shcat /data/redis/file.txt NO.17 Create a pod that echo “hello world” and then exists. Have the pod deleted automatically when it’s completed kubectl run busybox –image=busybox -it –rm –restart=Never — /bin/sh -c ‘echo hello world’ kubectl get po # You shouldn’t see pod with the name “busybox”NO.18 List “nginx-dev” and “nginx-prod” pod and delete those pods See the solution below.Explanationkubect1 get pods -o widekubectl delete po “nginx-dev”kubectl delete po “nginx-prod”NO.19 List all the pods sorted by name See the solution below.Explanationkubect1 get pods –sort-by=.metadata.nameNO.20 Score: 5%TaskFrom the pod label name=cpu-utilizer, find pods running high CPU workloads and write the name of the pod consuming most CPU to the file /opt/KUTR00401/KUTR00401.txt (which already exists). Solution:kubectl top -l name=cpu-user -Aecho ‘pod name’ >> /opt/KUT00401/KUT00401.txtNO.21 Set the node namedek8s-node-1asunavailable and reschedule all thepods running on it. See the solution below.ExplanationsolutionNO.22 List all the pods sorted by created timestamp See the solution below.Explanationkubect1 get pods–sort-by=.metadata.creationTimestampNO.23 Create a configmap called cfgvolume with values var1=val1,var2=val2 and create an nginx pod with volume nginx-volume whichreads data from this configmap cfgvolume and put it on the path/etc/cfg  // first create a configmap cfgvolumekubectl create cm cfgvolume –from-literal=var1=val1 –fromliteral=var2=val2// verify the configmapkubectl describe cm cfgvolume// create the config mapkubectl create -f nginx-volume.ymlvim nginx-configmap-pod.yamlapiVersion: v1kind: Pod– name: nginx-volumeconfigMap:name: cfgvolumecontainers:– image: nginxname: nginxvolumeMounts:– name: nginx-volumemountPath: /etc/cfgrestartPolicy: Alwaysk kubectl apply -f nginx-configmap-pod.yaml/ // Verify// exec into the podkubectl exec -it nginx — /bin/sh// check the pathcd /etc/cfg  // first create a configmap cfgvolumekubectl create cm cfgvolume –from-literal=var1=val1 –fromliteral=var2=val2// verify the configmapkubectl describe cm cfgvolume// create the config mapkubectl create -f nginx-volume.ymlvim nginx-configmap-pod.yamlapiVersion: v1kind: Podmetadata:labels:run: nginxname: nginxspec:volumes:– name: nginx-volumeconfigMap:name: cfgvolumecontainers:– image: nginxname: nginxvolumeMounts:– name: nginx-volumemountPath: /etc/cfgrestartPolicy: Alwaysk kubectl apply -f nginx-configmap-pod.yaml/ // Verify// exec into the podkubectl exec -it nginx — /bin/sh// check the pathcd /etc/cfg NO.24 Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it. solutionNO.25 Score: 4%TaskSet the node named ek8s-node-1 as unavailable and reschedule all the pods running on it. SOLUTION:[student@node-1] > ssh ek8skubectl cordon ek8s-node-1kubectl drain ek8s-node-1 –delete-local-data –ignore-daemonsets –forceNO.26 Create a configmap called myconfigmap with literal valueappname=myapp  kubectl create cm myconfigmap –from-literal=appname=myapp// Verifykubectl get cm -o yaml(or)kubectl describe cm  kubectl create cm myconfigmap –from-literal=appname=myapp// Verify(or)kubectl describe cm NO.27 Create a redis pod, and have it use a non-persistent storageNote: In exam, you will have access to kubernetes.io site,Refer : https://kubernetes.io/docs/tasks/configure-pod-container/configurevolume-storage/  apiVersion: v1kind: Podmetadata:name: redisspec:containers:– name: redisimage: redisvolumeMounts:– name: redis-storagemountPath: /data/redisports:– containerPort: 6379volumes:– name: redis-storageemptyDir: {}  apiVersion: v1kind: Podmetadata:name: redisspec:containers:– name: redisimage: redisvolumeMounts:– containerPort: 6379volumes:– name: redis-storageemptyDir: {} NO.28 Check the Image version of nginx-dev pod using jsonpath See the solution below.Explanationkubect1 get po nginx-dev -ojsonpath='{.spec.containers[].image}{“n”}’NO.29 An Administrator is configuring Authentication Enforcement and they would like to create an exemption rule to exempt a specific group from authentication. Which authentication enforcement object should they select?  default-web-form  default-no-captive-port  default-browser-challenge  default-authentication-bypass NO.30 Create 2 nginx image pods in which one of them is labelled with env=prod and another one labelled with env=dev and verify the same.  kubectl run –generator=run-pod/v1 –image=nginx — labels=env=prod nginx-prod –dry-run -o yaml > nginx-prodpod.yaml Now, edit nginx-prod-pod.yaml file and remove entries like “creationTimestamp: null” “dnsPolicy: ClusterFirst” vim nginx-prod-pod.yaml apiVersion: v1 kind: Pod metadata:labels:env: prodname: nginx-prodspec:containers:– image: nginxname: nginx-prodrestartPolicy: Always# kubectl create -f nginx-prod-pod.yamlkubectl run –generator=run-pod/v1 –image=nginx —labels=env=dev nginx-dev –dry-run -o yaml > nginx-dev-pod.yamlapiVersion: v1kind: Podmetadata:labels:env: devname: nginx-devspec:containers:– image: nginxname: nginx-devrestartPolicy: Always# kubectl create -f nginx-prod-dev.yamlVerify :kubectl get po –show-labelskubectl get po -l env=prodkubectl get po -l env=dev  kubectl run –generator=run-pod/v1 –image=nginx — labels=env=prod nginx-prod –dry-run -o yaml > nginx-prodpod.yaml Now, edit nginx-prod-pod.yaml file and remove entries like “creationTimestamp: null” “dnsPolicy: ClusterFirst” vim nginx-prod-pod.yaml apiVersion: v1 kind: Pod metadata:labels:env: prodname: nginx-prodspec:containers:– image: nginxname: nginx-prodrestartPolicy: Always# kubectl create -f nginx-prod-pod.yamlkubectl run –generator=run-pod/v1 –image=nginx —labels=env=dev nginx-dev –dry-run -o yaml > nginx-dev-pod.yamlapiVersion: v1kind: Podmetadata:– image: nginxname: nginx-devrestartPolicy: Always# kubectl create -f nginx-prod-dev.yamlVerify :kubectl get po –show-labelskubectl get po -l env=dev NO.31 Monitor the logs of pod foo and:* Extract log lines corresponding unable-to-access-website* Write them to/opt/KULM00201/foo See the solution below.ExplanationsolutionNO.32 Score: 4%TaskCheck to see how many nodes are ready (not including nodes tainted NoSchedule ) and write the number to /opt/KUSC00402/kusc00402.txt. Solution:kubectl describe nodes | grep ready|wc -lkubectl describe nodes | grep -i taint | grep -i noschedule |wc -lecho 3 > /opt/KUSC00402/kusc00402.txt#kubectl get node | grep -i ready |wc -l# taints、noSchedulekubectl describe nodes | grep -i taints | grep -i noschedule |wc -l#echo 2 > /opt/KUSC00402/kusc00402.txt Loading … The Importance of CNCF CKA Certification Exam The CNCF Certified Kubernetes Administrator exam will provide a great opportunity to those who want to be part of the cloud-native revolution. The certification is a step closer towards the goal of becoming a certified engineer or operations professional. Management of infrastructure running in production environments with Kubernetes is a huge priority for enterprises today. Deploying Kubernetes on behalf of an enterprise will provide enormous value and cost savings. 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Service is important for the CNCF CKA Certification Exam.   Practice LATEST CKA Exam Updated 68 Questions: https://www.vceprep.com/CKA-latest-vce-prep.html --------------------------------------------------- Images: https://certify.vceprep.com/wp-content/plugins/watu/loading.gif https://certify.vceprep.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2023-03-11 13:32:09 Post date GMT: 2023-03-11 13:32:09 Post modified date: 2023-03-11 13:32:09 Post modified date GMT: 2023-03-11 13:32:09