CKA測試引擎，CKA在線題庫

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CKA 認證是互聯網界具有極大聲望的網路技能認證，在全球，通過IBM認證考試的工程師，平均年薪在10萬元以上。通過 HP 認證考試的工程師，平均年薪在30萬元以上。獲得 Linux Foundation 的 CKA 認證的工程師，平均年薪也不低於20萬人民幣。據說，這還只是基本工資，不包括獎金，紅利和其他非工資性補貼。難怪美國副總統戈爾曾把 Linux Foundation CKA 認證恰當而幽默地稱為“獲得高技術，高薪水的頭等艙船票”。

CKA認證考試對於有興趣建立Kubernetes管理知識的IT專業人士來說是一項有價值的認證。該考試被許多組織所認可，是展示你在Kubernetes管理方面能力和專業知識的絕佳方式。如果你有興趣從事容器編排和管理方面的職業，CKA考試是一個很好的起點。

Linux基金會認證的Kubernetes管理員（CKA）計劃是一項行業認可的認證，驗證專業人士在管理和部署Kubernetes集群方面的技能和專業知識。Kubernetes是一個開源容器編排平台，自動化容器應用的部署、擴展和管理。隨著Kubernetes的普及，對具備管理Kubernetes集群所需技能和知識的認證專業人士的需求也在增加。

>> CKA測試引擎 <<

CKA在線題庫 - CKA PDF題庫

PDFExamDumps的經驗豐富的專家團隊開發出了針對Linux Foundation CKA 認證考試的有效的培訓計畫，很適合參加Linux Foundation CKA 認證考試的考生。PDFExamDumps為你提供的都是高品質的產品，可以讓你參加Linux Foundation CKA 認證考試之前做模擬考試，可以為你參加考試做最好的準備。

CKA 考試適用於有 Kubernetes 工作經驗且希望驗證其技能和知識的個人。它也適用於初學 Kubernetes 但有 Docker 等其他容器平台工作經驗的個人。考試旨在測試中高級水平的個人技能，不適合新手。

最新的 Kubernetes Administrator CKA 免費考試真題 (Q60-Q65):

問題 #60
List the nginx pod with custom columns POD_NAME and POD_STATUS

答案：

解題說明：
kubectl get po -o=custom-columns="POD_NAME:.metadata.name,
POD_STATUS:.status.containerStatuses[].state"


問題 #61
You have a Deployment named 'web-app' with 3 replicas running a Flask application. You need to implement a rolling update strategy that ensures only one pod is unavailable at any time. Additionally, you need to implement a strategy to handle the update process when the pod's resource requests exceed the available resources.

答案：

解題說明：
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Update the Deployment YAML:
- Update the 'replicas' to 2.
- Define 'maxUnavailable: 1' and 'maxSurge: 0' in the 'strategy.rollingUpdate' section to control the rolling update process.
- Configure a 'strategy.type" to 'RollingUpdate" to trigger a rolling update when the deployment is updated.
- Add a 'spec.template.spec.resources' section to define resource requests for the pod.
- Set 'spec.template.spec.restartPolicy' to 'OnFailure' for the pod to restart when it fails.

2. Create the Deployment: - Apply the updated YAML file using 'kubectl apply -f web-app.yaml' 3. Verify the Deployment: - Check the status of the deployment using 'kubectl get deployments web-app' to confirm the rollout and updated replica count. 4. Trigger the Automatic Update: - Update the 'web-app' image in the Docker Hub repository. 5. Monitor the Deployment: - Use 'kubectl get pods -l app=web-app' to monitor the pod updates during the rolling update process. You will observe that one pod is terminated at a time, while one new pod with the updated image is created. 6. Handle Resource Exceedance: - If the pod's resource requests exceed the available resources, the pod will be evicted and restarted. The 'restartPolicy' ensures that the pod restarts automatically upon failure. 7. Check for Successful Update: - Once the deployment is complete, use 'kubectl describe deployment web-app' to see that the 'updatedReplicas' field matches the 'replicas' field, indicating a successful update.


問題 #62
Create a deployment called webapp with image nginx having 5 replicas in it, put the file in /tmp directory with named webapp.yaml

答案：A


問題 #63
You have a Deployment with 5 replicas. You want to increase the number of replicas to 10, but only after ensuring that the new pods are healthy and ready to serve traffic.

答案：

解題說明：
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Update the Deployment YAML:
- Update the 'replicas' field in the Deployment YAML to 10.

2. Apply the Changes: - Apply the updated YAML file using 'kubectl apply -f my-deployment.yaml' 3. Monitor Pod Status: - Use 'kubectl get pods -l app=my-app' to monitor the status of the pods. - Ensure that the new pods are in the "Running' state and have a 'Ready' status. 4. Check Liveness and Readiness Probes: - If applicable, ensure that liveness and readiness probes are configured to check the health of the pods. - This helps in identifying and restarting unhealthy pods. 5. Verify Service Availability: - Use 'kubectl get services my-service" to check the service status. - Ensure that the service is still available and serving traffic. 6. Increase Replicas: - Once the new pods are healthy and ready, the deployment will automatically scale up to 10 replicas.


問題 #64
Score: 4%

Task
Schedule a pod as follows:
* Name: nginx-kusc00401
* Image: nginx
* Node selector: disk=ssd

答案：

解題說明：
See the solution below.
Explanation
Solution:
#yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx-kusc00401
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
nodeSelector:
disk: spinning
#
kubectl create -f node-select.yaml


問題 #65
......

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