[2023年05月26日] DCA PDF問題集にはあなたに不可欠なDCA試験解答を合格に繋ぐ！
DCAPDF解答で完璧な予見DCA練習試験問題
Docker Certified Associate（DCA）認定試験は、Docker実践者が必要とする技術的知識とスキルを検証する、世界的に認められた認定プログラムです。この認定は、人気のあるコンテナ化プラットフォームであるDockerによって提供されており、開発者がコンテナ化されたアプリケーションを迅速かつ効率的にビルド、シップ、および実行できるようにします。DCA認定試験は、Docker実践者およびマネージャーがコンテナ化されたアプリケーションを効果的に扱い、管理するための知識と実践的なスキルをテストするように設計されています。
DCA試験を受験するには、Docker Engine、Docker Compose、Docker Swarm、およびDocker Content Trustを含むDocker技術の良い理解が必要です。彼らはまた、コンテナ化やKubernetesなどの関連技術、およびコンテナのオーケストレーションと管理にも精通している必要があります。試験は55の多肢選択問題から構成され、90分間続きます。
DCA 試験の準備には、Docker とその関連技術についての強い理解が必要です。Docker は、試験の準備を支援するためのトレーニングコースやリソースを提供しています。これらのリソースには、オンラインコース、インストラクターによるトレーニング、練習問題が含まれます。また、候補者は、サードパーティのプロバイダから学習資料や練習問題を見つけることもできます。
質問 # 13
In the context of a swarm mode cluster, does this describe a node?
Solution: an instance of the Docker engine participating in the swarm
- A. No
- B. Yes
正解：B
質問 # 14
The output of which command can be used to find the architecture and operating system an image is compatible with?
- A. docker image inspect --filter {{.Architecture}} {{.OS}} ' <image-id>
- B. docker image info <image-id>
- C. docker image inspect --format {{.Architecture}} {{.OS}} ' <image-id>
- D. docker image ls <image-id>
正解：C
質問 # 15
You have just executed 'docker swarm leave' on a node. What command can be run on the same node to confirm it has left the cluster?
- A. docker system info
- B. docker system status
- C. docker node ls
- D. docker system status
正解：A
質問 # 16
A service 'wordpress' is running using a password string to connect to a non-Dockerized database service. The password string is passed into the 'wordpress' service as a Docker secret. Per security policy, the password on the database was changed. Identity the correct sequence of steps to rotate the secret from the old password to the new password.
- A. Create a new docker secret with a new password. Trigger a rolling update of the "wordpress" service, by using "--secret-rm" & "--secret-add" to remove the old secret and add the updated secret.
- B. Create a new docker secret with the new password. Remove the existing service using 'docker service rm'. Start a new service with the new secret using "--secret=<new password>"
- C. Create a new docker secret with the new password. Trigger a rolling secret update by using the 'docker secret update' command
- D. Trigger an update to the service by using 'docker service update --secret=<new password>'
正解：A
質問 # 17
Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker service create --network --secure
- A. Yes
- B. No
正解：B
質問 # 18
How do you change the default logging driver for the docker daemon in Linux?
- A. Install a logging agent on the Linux host.
- B. Set the value of log-driver to the name of the logging driver In the daemon.json In /etc/doc
- C. Use the -log-driver' flag when you run a container.
- D. At the command line, type: docker log driver set <driver name>
正解：A
質問 # 19
Will a DTR security scan detect this?
Solution: licenses for known third party binary components
- A. Yes
- B. No
正解：B
質問 # 20
Is this a type of Linux kernel namespace that provides container isolation?
Solution: Storage
- A. Yes
- B. No
正解：B
質問 # 21
Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.
Is this a way to accomplish this?
Solution: Create one namespace for each application and add all the resources to it.
- A. Yes
- B. No
正解：B
質問 # 22
Does this command display all the pods in the cluster that are labeled as 'env: development'?
Solution: 'kubectl get pods -I env=development'
- A. No
- B. Yes
正解：B
質問 # 23
Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker service create --network --encrypted
- A. Yes
- B. No
正解：B
質問 # 24
Which of these swarm manager configurations will cause the cluster to be in a lost quorum state?
- A. 1 manager of which 1 is healthy
- B. 5 managers of which 3 are healthy
- C. 4 managers of which 2 are healthy
- D. 3 managers of which 2 are healthy
正解：C
質問 # 25
Will this command display a list of volumes for a specific container?
Solution: docker volume logs nginx --containers'
- A. Yes
- B. No
正解：B
質問 # 26
A server is running low on disk space. What command can be used to check the disk usage of images,
containers, and volumes for Docker engine?
- A. 'docker system df'
- B. 'docker system prune'
- C. 'docker system ps'
- D. 'docker system free'
正解：A
質問 # 27
A container named "analytics" that stores results in a volume called "data" was created.
docker run -d --name=analytics -v data:/data app1
How are the results accessed in "data" with another container called "app2"?
- A. docker run -d --name=reports --mount=app1 app2
- B. docker run -d --name=reports --volume=app1 app2
- C. docker run -d --name=reports --volume=data app2
- D. docker run -d --name=reports --volumes-from=analytics app2
正解：D
質問 # 28
Which 'docker run' flag lifts cgroup limitations?
- A. 'docker run --privileged'
- B. 'docker run --isolation'
- C. 'docker run --cpu-period'
- D. 'docker run --cap-drop'
正解：A
質問 # 29
Your organization has a centralized logging solution, such as Splunk.
Will this configure a Docker container to export container logs to the logging solution?
Solution: docker logs <container-id>
- A. Yes
- B. No
正解：B
質問 # 30
Which set of commands can identify the publishd port(s) for a container? (Choose 1.)
- A. 'docker network inspect','docker port'
- B. 'docker port inspect', 'docker container inspect'
- C. 'docker info','docker network inspect'
- D. 'docker container inspect', docker port'
正解：D
質問 # 31
A users attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation?
Solution: Linux capabilities
- A. No
- B. Yes
正解：B
質問 # 32
Following the principle of least privilege, which of the following methods can be used to securely grnt access to the specific user to communicate to a Docker engine? (Choose two.)
- A. Give the user root access to the server to allow them to run Docker commands as root.
- B. Add the user to the 'docker' group on the server or specify the groue with the '--group' Docker daemon option.
- C. Utilize the '--host 127.0.0.1:2375' option to the Docker daemon to listen on port 2375 over TCP on localhost
- D. Utilize the '--host 0.0.0.0:2375' option to the Docker daemon to listen on port 2375 over TCP on all interfaces
- E. Utilize openssl to create TLS client and server certificates, configuring the Docker engine to use with mutual TLS over TCP.
正解：B、E
質問 # 33
The Kubernetes yaml shown below describes a clusterIP service.
Is this a correct statement about how this service routes requests?
Solution: Traffic sent to the IP of any pod with the label app: nginx on port 8080 will be forwarded to port 80 in that pod.
- A. No
- B. Yes
正解：B
質問 # 34
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DCAリアル試験問題と正確なDocker Certified Associate (DCA) ExamPDF解答：https://www.goshiken.com/Docker/DCA-mondaishu.html
リアルDocker試験の素晴らしい練習問題集でDCA試験：https://drive.google.com/open?id=1km1qJgkqB8Y7TRMu--7t4hvE7DxyybWr