cka题库整理55道，史上最全.pdf

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IT Certification Guaranteed, The Easy Way! Exam Title : : CKA Certified Kubernetes Administrator (CKA) Program Exam Vendor : Linux Foundation Version : V13.25 1

IT Certification Guaranteed, The Easy Way! NO.1 List all the pods sorted by name Answer: See the solution below. Explanation kubect1 get pods --sort-by=.metadata.name NO.2 Create a pod with image nginx called nginx and allow traffic on port 80 Answer: See the solution below. Explanation kubectlrun nginx --image=nginx --restart=Never --port=80 NO.3 Create and configure the servicefront-end-serviceso it's accessiblethroughNodePortand routes to theexisting pod namedfront-end. Answer: See the solution below. Explanation solution NO.4 Set the node namedek8s-node-1asunavailable and reschedule all thepods running on it. Answer: See the solution below. Explanation solution 2

IT Certification Guaranteed, The Easy Way! NO.5 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. Answer: See the solution below. Explanation 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: prod name: nginx-prod spec: containers: - image: nginx name: nginx-prod restartPolicy: Always # kubectl create -f nginx-prod-pod.yaml kubectl run --generator=run-pod/v1 --image=nginx -- labels=env=dev nginx-dev --dry-run -o yaml > nginx-dev-pod.yaml 3

IT Certification Guaranteed, The Easy Way! apiVersion: v1 kind: Pod metadata: labels: env: dev name: nginx-dev spec: containers: - image: nginx name: nginx-dev restartPolicy: Always # kubectl create -f nginx-prod-dev.yaml Verify : kubectl get po --show-labels kubectl get po -l env=prod kubectl get po -l env=dev NO.6 Create a busybox pod that runs the command "env" and save the output to "envpod" file Answer: See the solution below. Explanation kubectl run busybox --image=busybox --restart=Never --rm -it -- env > envpod.yaml NO.7 Create a namespace called 'development' and a pod with image nginx called nginx on this namespace. Answer: See the solution below. Explanation kubectl create namespace development kubectl run nginx --image=nginx --restart=Never -n development NO.8 Create an nginx pod with container Port 80 and it should only receive traffic only it checks the endpoint / on port 80 and verify and delete the pod. A. kubectl run nginx --image=nginx --restart=Never --port=80 -- dry-run -o yaml > nginx-pod.yaml // add the readinessProbe section and create vim nginx-pod.yaml run: nginx name: nginx spec: containers: - image: nginx name: nginx ports: - containerPort: 60 readinessProbe: 4

IT Certification Guaranteed, The Easy Way! httpGet: path: / port: 60 restartPolicy: Never kubectl apply -f nginx-pod.yaml // verify kubectl describe pod nginx | grep -i readiness kubectl delete po nginx B. kubectl run nginx --image=nginx --restart=Never --port=80 -- dry-run -o yaml > nginx-pod.yaml // add the readinessProbe section and create vim nginx-pod.yaml apiVersion: v1 kind: Pod metadata: labels: run: nginx name: nginx spec: containers: - image: nginx name: nginx ports: - containerPort: 80 readinessProbe: httpGet: path: / port: 80 restartPolicy: Never kubectl apply -f nginx-pod.yaml // verify kubectl describe pod nginx | grep -i readiness kubectl delete po nginx Answer: B NO.9 Create a nginx pod with label env=test in engineering namespace Answer: See the solution below. Explanation kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml > nginx-pod.yaml kubectl run nginx --image=nginx --restart=Never --labels=env=test --namespace=engineering --dry-run -o yaml | kubectl create -nengineering-f - YAML File: apiVersion: v1 kind: Pod metadata: name: nginx 5

IT Certification Guaranteed, The Easy Way! namespace: engineering labels: env: test spec: containers: - name: nginx image: nginx imagePullPolicy: IfNotPresent restartPolicy: Never kubectl create -f nginx-pod.yaml NO.10 Create a pod with environment variables as var1=value1.Check the environment variable in pod Answer: See the solution below. Explanation kubectl run nginx --image=nginx --restart=Never --env=var1=value1 # then kubectl exec -it nginx -- env # or kubectl exec -it nginx -- sh -c 'echo $var1' # or kubectl describe po nginx | grep value1 NO.11 List all persistent volumes sorted bycapacity, saving the fullkubectloutput to /opt/KUCC00102/volume_list. Usekubectl 's own functionality forsorting the output, and do not manipulate it any further. Answer: See the solution below. Explanation solution 6

IT Certification Guaranteed, The Easy Way! NO.12 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. Answer: See the solution below. Explanation solution 7

IT Certification Guaranteed, The Easy Way! 8

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