Docker DCA 問題集

試験コード：DCA

試験名称：Docker Certified Associate (DCA) Exam

最近更新時間：2026-07-31

問題と解答：全189問

DCA 無料でデモをダウンロード：

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無料問題集DCA 資格取得

質問 1：
You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object. Does this command display it?
Solution: kubectl logs deployment api
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 3-2-2
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 3：
What is the difference between the ADD and COPY Dockerfile instructions? (Select two.)
A. ADD supports compression format handling while COPY does not.
B. ADD supports remote URL handling while COPY does not.
C. COPY supports regular expression handling while ADD does not.
D. COPY supports compression format handling while ADD does not.
E. ADD supports regular expression handling while COPY does not.
正解：A,B

質問 4：
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution. Set and export the IGNORE_TLS environment variable on the command line.
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution: Delete the image and run garbage collection on the Docker Trusted Registry.
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: user
A. No
B. Yes
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 7：
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution:Use either EXPOSE or --publish to access the containers on the bridge network
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 8：
You want to create a container that is reachable from its host's network.
Does this action accomplish this?
Solution.Use either EXPOSE or -publish to access the container on the bridge network.
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 9：
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository?
Solution: Tag the image with 'nginx:immutable'.
A. No
B. Yes
正解：A
解説: (Topexam メンバーにのみ表示されます)

弊社のDocker DCAを利用すれば試験に合格できます

弊社のDocker DCAは専門家たちが長年の経験を通して最新のシラバスに従って研究し出した勉強資料です。弊社はDCA問題集の質問と答えが間違いないのを保証いたします。

この問題集は過去のデータから分析して作成されて、カバー率が高くて、受験者としてのあなたを助けて時間とお金を節約して試験に合格する通過率を高めます。我々の問題集は的中率が高くて、100％の合格率を保証します。我々の高質量のDocker DCAを利用すれば、君は一回で試験に合格できます。

弊社は無料Docker DCAサンプルを提供します

お客様は問題集を購入する時、問題集の質量を心配するかもしれませんが、我々はこのことを解決するために、お客様に無料DCAサンプルを提供いたします。そうすると、お客様は購入する前にサンプルをダウンロードしてやってみることができます。君はこのDCA問題集は自分に適するかどうか判断して購入を決めることができます。

DCA試験ツール：あなたの訓練に便利をもたらすために、あなたは自分のペースによって複数のパソコンで設置できます。

TopExamは君にDCAの問題集を提供して、あなたの試験への復習にヘルプを提供して、君に難しい専門知識を楽に勉強させます。TopExamは君の試験への合格を期待しています。

Docker DCA 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Image Creation, Management, and Registry: This domain assesses cloud infrastructure administrators and focuses on building, managing, and optimizing Docker images. It involves working with Dockerfiles, tagging, and pruning images, as well as understanding image layering and registry usage. Candidates must demonstrate image creation from files, modifications to reduce layers, and the ability to push, pull, and sign images. Registry configuration and management are also included, with tasks involving authentication, search, deletion, and secure access to stored images.
トピック 2	Installation and Configuration (15%): This section of the exam evaluates the capabilities of cloud infrastructure administrators and addresses Docker engine installation, setup, and configuration across multiple platforms. It includes tasks such as logging driver selection, swarm initialization, error resolution, and user access management. Candidates must demonstrate knowledge of system prerequisites, namespaces, cgroups, and the implementation of secure client-server certificate authentication. It also requires consistent deployment practices for Docker UCP and DTR environments, including backup scheduling and HA configurations.
トピック 3	Orchestration: This section of the exam measures the skills of DevOps engineers and covers the configuration and management of Docker Swarm clusters. It includes tasks such as setting up manager and worker nodes, converting containers into services, and manipulating stacks. Candidates must understand the role of templates, inspect and troubleshoot running services, and adjust service scaling and placement using node labels. The section also requires interpreting docker inspect outputs and handling communication between Dockerized applications and legacy systems, emphasizing the importance of quorum in cluster resilience.
トピック 4	Domain 5: Security: This part of the exam focuses on the knowledge of cloud infrastructure administrators and addresses Docker security configurations and practices. It covers image signing, security scans, Docker Content Trust, and default engine protections. Candidates must configure RBAC settings within UCP, integrate identity systems such as LDAP or Active Directory, and manage UCP client bundles. Understanding MTLS, swarm security defaults, and UCP DTR certificate usage is essential to meet the requirements of this domain.

参照：https://dockerlabs.collabnix.com/docker/dca.html

一年間の無料更新サービスを提供します

君が弊社のDocker DCAをご購入になってから、我々の承諾する一年間の更新サービスが無料で得られています。弊社の専門家たちは毎日更新状態を検査していますから、この一年間、更新されたら、弊社は更新されたDocker DCAをお客様のメールアドレスにお送りいたします。だから、お客様はいつもタイムリーに更新の通知を受けることができます。我々は購入した一年間でお客様がずっと最新版のDocker DCAを持っていることを保証します。