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| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Linux Foundation Certified Kubernetes Application Developer Exam |
| Exam Number: | CKAD |
| Exam Price: | USD 395 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Exam Format: | Hands-on lab exam, Online proctored, Performance-based, Kubernetes CLI-based tasks |
| Real Exam Qty: | 15-20 performance-based tasks |
| Exam Duration: | 120 minutes |
| Passing Score: | 66% |
| Related Certifications: | Certified Kubernetes Security Specialist (CKS) Certified Kubernetes Administrator (CKA) |
| Recommended Training: | CKAD Exam Preparation Course (Linux Foundation) |
| Exam Registration: | Linux Foundation Certification Portal |
| Sample Questions: | Linux Foundation CKAD Sample Questions |
| Exam Way: | Online proctored, remote performance-based lab environment |
| Pre Condition: | No formal prerequisites, but hands-on Kubernetes experience recommended |
| Official Syllabus URL: | https://training.linuxfoundation.org/certification/certified-kubernetes-application-developer-ckad/ |
かねてIT認定試験資料を開発する会社として、高品質のLinux Foundation CKAD試験資料を提供したり、ビフォワ.アフタサービスに関心を寄せたりしています。我々社の職員は全日であなたのお問い合わせを待っております。何の疑問があると、弊社の職員に連絡して問い合わせます。一年間で更新するなる、第一時間であなたのメールボックスに送ります。
CKAD 認定試験は、Kubernetes アプリケーションの展開、設定、および管理能力を評価する実践的な試験です。試験は、厳密な時間制限内に完了しなければならない一連のパフォーマンスベースのタスクで構成されており、プロダクション環境で Kubernetes を使用する際に開発者が直面する実際の課題を反映しています。試験は、Kubernetes API との作業、Kubernetes オブジェクトの作成と管理、および Kubernetes アプリケーションを使用する際に発生する一般的な問題のトラブルシューティング能力をテストするよう設計されています。
Linux Foundation CKAD（Linux Foundation Certified Kubernetes Application Developer）認定試験は、Kubernetesを使用してクラウドネイティブアプリケーションの設計、構築、構成、展開の専門知識を証明しようとしている開発者にとって非常に人気のある認定です。この試験は、Kubernetesアーキテクチャ、アプリケーション設計、トラブルシューティング、セキュリティにおける候補者のスキルをテストするように設計されています。認定はベンダー中立であり、候補者はいつでもどこからでも試験を受けることができ、世界中の専門家がアクセスできるようにすることができます。
質問 # 165
Refer to Exhibit.
Set Configuration Context:
[student@node-1] $ | kubectl
Config use-context k8s
Context
You sometimes need to observe a pod's logs, and write those logs to a file for further analysis.
Task
Please 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
正解：
解説：
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.yaml
This 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 pods
To 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.txt
Replace <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.
質問 # 166
You have a microservice application that relies on a Redis cacne for data retrieval. Design a multi-container Pod that incorporates a Redis sidecar container to provide local caching within the Pod. Ensure that the main application container can access the Redis sidecar container within the same Pod Namespace Without needing to communicate with an external Redis cluster.
正解：
解説：
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define the Pod YAML: Create a Pod YAML file that includes both the main application container and the Redis sidecar container.
2. Configure Environment Variables: Set an environment variable 'REDIS HOST within the main application container to point to the Redis sidecar containers hostname- In Kubernetes, containers within the same Pod can communicate with each other using their container names. 3. Connect Application to Redis: Modifry' the application code to connect to the Redis instance using the 'REDIS HOST environment variable. For example, using a Python application with the 'redis-py' library: python import redis r = redis-Redis(host=os.environ.get('REDlS_HOST'), port=6379) # Perform Redis operations (e.g., r.set('key', 'value')) 4. Deploy the Pod: Apply the Pod YAML using 'kubectl apply -f my-app-pod.yamr 5. Verify Connectivity: Check the logs of the main application container to ensure it's successfully connecting to the Redis sidecar container Note: This approach provides local caching within the Pod, reducing external network calls and improving performance. It's important to consider potential data consistency issues if multiple Pods share the same Redis instance.
質問 # 167
Context
A web application requires a specific version of redis to be used as a cache.
Task
Create a pod with the following characteristics, and leave it running when complete:
* The pod must run in the web namespace.
The namespace has already been created
* The name of the pod should be cache
* Use the Ifccncf/redis image with the 3.2 tag
* Expose port 6379
正解：
解説：
Solution:
質問 # 168
Context
Context
Developers occasionally need to submit pods that run periodically.
Task
Follow 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
正解：
解説：
Solution:
質問 # 169 
Task:
A Dockerfile has been prepared at -/human-stork/build/Dockerfile
1) 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
正解：
解説：
See the solution below.
Explanation:
Solution:
質問 # 170
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