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[General] Hot Authorized DCA Exam Dumps | Professional Simulated DCA Test: Docker Certifie

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【General】 Hot Authorized DCA Exam Dumps | Professional Simulated DCA Test: Docker Certifie

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To prepare for the Docker DCA Exam, it is essential to have hands-on experience working with Docker. Docker provides a wealth of resources, including official documentation, training courses, and practice exams, to help individuals prepare for the exam. The official Docker documentation covers all the topics tested in the exam, and the training courses provide in-depth knowledge and practical experience in working with Docker. Practice exams are also available to help individuals familiarize themselves with the exam format and content.
Docker Certified Associate (DCA) Exam Sample Questions (Q11-Q16):NEW QUESTION # 11
Is this an advantage of multi-stage builds?
Solution: optimizes Images by copying artifacts selectively from previous stages
  • A. No
  • B. Yes
Answer: B
Explanation:
Multi-stage builds are a feature of Docker that allows you to use multiple FROM statements in your Dockerfile. Each FROM statement creates a new stage of the build, which can use a different base image and run different commands. You can then copy artifacts from one stage to another, leaving behind everything you don't want in the final image. This optimizes the image size and reduces the attack surface by removing unnecessary dependencies and tools. For example, you can use a stage to compile your code, and then copy only the executable file to the final stage, which can use a minimal base image like scratch. This way, you don't need to include the compiler or the source code in the final image. Reference:
Multi-stage builds | Docker Docs
What Are Multi-Stage Docker Builds? - How-To Geek
Multi-stage | Docker Docs

NEW QUESTION # 12
Will this command display a list of volumes for a specific container?
Solution. 'docker container logs nginx -volumes'
  • A. Yes
  • B. No
Answer: B
Explanation:
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 the container1. 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 volume mounted in the container4. References: docker container logs, docker container logs nginx -volumes, docker inspect, docker inspect -f '{{ .Mounts }}' nginx

NEW QUESTION # 13
You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?
Solution: 'docker inspect http'
  • A. Yes
  • B. No
Answer: B
Explanation:
Explanation
Using 'docker inspect http' does not enable you to view the list of historical tasks for this service. The docker inspect command shows low-level information about one or more objects, such as containers, images, networks, volumes, etc. It does not show information about services or tasks. To view the list of historical tasks for this service, you need to use 'docker service ps http'. References:
https://docs.docker.com/engine/reference/commandline/inspect/,
https://docs.docker.com/engine/reference/commandline/service_ps/

NEW QUESTION # 14
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Delete '/var/lib/docker' directory.
  • A. Yes
  • B. No
Answer: B
Explanation:
Explanation
Deleting the /var/lib/docker directory will not upgrade Docker Engine CE to Docker Engine EE. It will only remove all the data stored by Docker, such as images, containers, volumes, and networks. This can cause data loss and disrupt the running services. To upgrade from Docker Engine CE to Docker Engine EE, you need to follow the official instructions from Docker, which involve uninstalling the CE package and installing the EE package. You also need to have a valid license to use Docker Engine EE. References:
* Upgrading Docker CE to EE for the Impatient - Part I
* Install Docker Engine
* Moving from docker ce to docker-EE - Stack Overflow

NEW QUESTION # 15
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Manually download the 'docker-ee' package
  • A. Yes
  • B. No
Answer: B
Explanation:
= Manually downloading the 'docker-ee' package will not upgrade Docker Engine CE to Docker Engine EE. Docker Engine CE and Docker Engine EE are two different products with different installation methods and features. Docker Engine CE is a free and open source containerization platform, while Docker Engine EE is a subscription-based enterprise-grade platform that offers additional features such as security scanning, certified plugins, and support12. To upgrade from Docker Engine CE to Docker Engine EE, you need to uninstall Docker Engine CE and install Docker Engine EE following the official documentation3. Reference:
What is the exact difference between Docker EE (Enterprise Edition), Docker CE (Community Edition) and Docker (Custom Support) - Stack Overflow Difference between Docker Community Edition (CE) vs Docker Enterprise Edition (EE) in 2020 Install Docker Engine | Docker Docs

NEW QUESTION # 16
......
The DCA desktop-based practice exam is compatible with Windows-based computers and only requires an internet connection for the first-time license validation. The web-based DCA practice test is accessible on any browser without needing to install any separate software. Finally, the DCA Dumps PDF is easily portable and can be used on smart devices or printed out. We constantly update the DCA pdf file to ensure customers receive the latest version of Docker DCA questions, based on the actual Docker Certified Associate (DCA) Exam (DCA) exam content.
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https://www.examslabs.com
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