2026年GoShikenの最新DCA PDFダンプおよびDCA試験エンジンの無料共有：https://drive.google.com/open?id=1TG0I88jMQrd3llI7n9ahX6jOsL0U_qRq
DCAトレント準備には、さまざまな資格試験の実際の質問とシミュレーションの質問が含まれています。効率的に勉強する価値があります。時間は絶え間ない発展であり、命題の専門家は命題の社会変化傾向の進行に応じて実際のDCA試験の質問を継続的に設定し、ホットな問題と政策変更を意識的に強調します。命題論文の方向性をよりよく把握できるようにするため、DCAの学習問題では、最新のコンテンツに焦点を当て、DCA試験に合格するのに役立ちます。
| Certification Vendor: | Docker |
|---|---|
| Exam Name: | Docker Certified Associate (DCA) Exam |
| Exam Number: | DCA |
| Real Exam Qty: | 55 |
| Exam Duration: | 90 minutes |
| Exam Price: | $195 USD |
| Passing Score: | ~65% |
| Exam Format: | Multiple Choice, Discrete Option Multiple Choice (DOMC) |
| Certificate Validity Period: | 2 years |
| Available Languages: | English |
| Related Certifications: | Docker Certified Associate |
| Sample Questions: | Docker DCA Sample Questions |
| Exam Way: | Online proctored exam (via PSI) or at a PSI testing center |
| Pre Condition: | 6+ months of hands-on experience with Docker recommended; understanding of containerization concepts and Docker architecture |
| Official Syllabus URL: | https://success.docker.com/certification |
Docker DCAソフト版問題集のようなバーチャルは購入前に、どうすれば適用性を感じられますか。この問題に心配する必要がありませんし、我々社の無料に提供するDocker DCAPDF版を直接にダウンロードし、事前に体験できます。何か問題があると、ライブチャットとメールで問い合わせます。我々GoShikenを選択するとき、Docker DCA試験にうまく合格できるチャンスを捉えるといえます。
DCA試験は、候補者がライブ環境で一連のタスクを完了する必要があるパフォーマンスベースの試験です。この試験は、実世界のシナリオでDockerコンテナを操作する能力をテストするよう設計されています。候補者は、Dockerコンテナの展開、管理、トラブルシューティングの熟練度を示さなければなりません。DCA認定は2年間有効であり、再認定試験に合格することで更新することができます。
質問 # 141
Will this command mount the host's '/data' directory to the ubuntu container in read-only mode?
Solution: 'docker run --add-volume /data /mydata -read-only ubuntu'
正解：A
解説：
Explanation
This command will not mount the host's '/data' directory to the ubuntu container in read-only mode, because it has several syntax errors and missing options. According to the official documentation, the correct command should be:
docker run --volume /data:/mydata:ro --read-only ubuntu
The errors and missing options are:
The --add-volume flag does not exist and should be replaced by --volume or -v to mount a host directory as a data volume.
The --volume flag requires a colon (:) to separate the host directory and the container directory, not a space.
The --read-only flag applies to the whole container's file system, not just the mounted volume. To make the volume read-only, a :ro suffix should be added to the --volume flag.
The ubuntu image name should be the last argument of the command.
References: https://docs.docker.com/engine/reference/commandline/run/#mount-volume-v-read-only
https://docs.docker.com/storage/volumes/#use-a-read-only-volume
質問 # 142
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution.Delete the image and delete the image repository from Docker Trusted Registry.
正解：A
解説：
Explanation
The sequence of steps will not completely delete an image from disk in the Docker Trusted Registry. Deleting an image and deleting an image repository from the Docker Trusted Registry will only remove the references to the image, but not the actual image data on the disk1. To completely delete an image from disk, you need to run the garbage collection command on the registry server, which will delete any unreferenced blobs2. The garbage collection command is bin/registry garbage-collect /path/to/config.yml3. References: Deleting an image), Garbage collection), Running garbage collection)
質問 # 143
Will this command display a list of volumes for a specific container?
Solution. 'docker container logs nginx -volumes'
正解：A
解説：
The command docker container logs nginx -volumes will not display a list of volumes for a specific container. The docker container logs command shows the logs of a container, which are usually the standard output and standard error of the main process running in thecontainer1. The -volumes flag is not a valid option for this command, and will result in an error message2. To display a list of volumes for a specific container, you can use the docker inspect command with a filter option, such as docker inspect -f '{{ .Mounts }}' nginx3. This will show the source, destination, mode, type, and propagation of each volumemounted in the container4. Reference: docker container logs, docker container logs nginx -volumes, docker inspect, docker inspect -f '{{ .Mounts }}' nginx
質問 # 144
A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.
Can this be used to schedule containers to meet the security policy requirements?
Solution: label contraints
正解：A
質問 # 145
Is this an advantage of multi-stage builds?
Solution.better logical separation of Dockerfile instructions for increased readability
正解：B
解説：
= Multi-stage builds allow you to use multiple FROM statements in your Dockerfile, each starting a new stage of the build1. This can help you achieve better logical separation of Dockerfile instructions for increased readability, as well as other benefits such as smaller image size, faster build time, and reduced security risks23. By separating your Dockerfile into different stages, you can organize your instructions by their purpose, such as building, testing, or deploying your application. You can also copy only the artifacts you need from one stage to another, leaving behind the unnecessary dependencies or tools1. This can make your Dockerfile easier to read and maintain, as well as improve the performance and security of your final image. Reference:
Multi-stage builds | Docker Docs
What Are Multi-Stage Docker Builds? - How-To Geek
Multi-stage | Docker Docs
質問 # 146
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DCA日本語対策: https://www.goshiken.com/Docker/DCA-mondaishu.html
2026年GoShikenの最新DCA PDFダンプおよびDCA試験エンジンの無料共有：https://drive.google.com/open?id=1TG0I88jMQrd3llI7n9ahX6jOsL0U_qRq