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The DCA Exam is a computer-based exam that consists of 55 multiple-choice questions. Candidates have 90 minutes to complete the exam and must score at least 65% to pass. DCA exam is available in English, Japanese, and Simplified Chinese. Candidates can take the exam at any Pearson VUE testing center around the world.
Docker DCA, also known as Docker Certified Associate, is a certification program offered by Docker that validates a professional's knowledge and skills in containerization using Docker. Docker Certified Associate (DCA) Exam certification exam is designed to test the candidate's understanding of Docker's core concepts, architecture, and its tools and technologies.
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There are the following steps for registering the Docker Certified Associate exam:
NEW QUESTION # 175
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 system events --filter splunk
Answer: A
Explanation:
Explanation
Using docker system events --filter splunk does not configure a Docker container to export container logs to the logging solution. The docker system events command shows real-time events from the server, such as container creation, image deletion, network connection, etc. It does not show or export container logs to any external service. The --filter option allows filtering events by type, action, image, container, etc., but it does not accept splunk as a valid filter value. References:
https://docs.docker.com/engine/reference/commandline/system_events/,
https://docs.docker.com/config/containers/logging/
NEW QUESTION # 176
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: Keep a backup copy of the image on another repository.
Answer: A
Explanation:
Explanation
= Keeping a backup copy of the image on another repository is not how a user can prevent an image, such as
'nginx:latest', from being overwritten by another user with push access to the repository. This approach does not prevent the original image from being overwritten, it only provides a way to restore it from another source.
However, this may not be reliable or efficient, as the backup repository may not be in sync with the original one, or may not be accessible at all times. To prevent an image from being overwritten by another user, the user can use the DTR web UI to make the tag immutable1. This feature allows the user to lock a specific tag, so that no one can push a new image with the same tag to the repository. This ensures that the image is always consistent and secure1. References:
* Make a tag immutable | Docker Docs
NEW QUESTION # 177
Will This command list all nodes in a swarm cluster from the command line?
Solution. 'docker swarm nodes'
Answer: A
Explanation:
Explanation
= The command 'docker swarm nodes' is not a valid command to list all nodes in a swarm cluster from the command line. The correct command is docker node ls, which can be run on a manager node to view the details of all the nodes in the swarm1. The docker swarm command is used to manage the swarm itself, not the nodes. For example, you can use docker swarm init to create a new swarm, or docker swarm join to add a node to an existing swarm2. References:
* Manage nodes in a swarm | Docker Docs
* docker swarm | Docker Docs
NEW QUESTION # 178
Which of the following commands wifi automatically create a volume when a container is started?
Answer: B
NEW QUESTION # 179
Which of the following commands starts a Redis container and configures it to always restart unless it is explicitly stopped or Docker is restarted?
Answer: B
NEW QUESTION # 180
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