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Docker Certified Associate (DCA) Exam Sample Questions (Q33-Q38):

NEW QUESTION # 33
Is this an advantage of multi-stage builds?
Solution: faster image builds by allowing parallel execution of Docker builds

A. No
B. Yes

Answer: A

Explanation:
= Simultaneously creating and tagging multiple images is not an advantage of multi-stage builds. Multi-stage builds are a feature that allows you to use multiple FROM statements in your Dockerfile, each starting a new stage of the build1. You can selectively copy artifacts from one stage to another, leaving behind everything you don't want in the final image. This helps you to optimize the size and security of your images, as well as to simplify your build process12. However, multi-stage builds do not create or tag multiple images at once. Each Dockerfile produces one final image, which is the result of the last stage in the Dockerfile1. If you want to create and tag multiple images from a single Dockerfile, you need to use the --target option with the docker build command, and specify the name of the stage you want to build and tag3. Reference:
Multi-stage builds | Docker Docs
What Are Multi-Stage Docker Builds? - How-To Geek
Stop at a specific build stage | Docker Docs

NEW QUESTION # 34
Is this a function of UCP?
Solution: image role-based access control

A. No
B. Yes

Answer: A

NEW QUESTION # 35
Some Docker images take time to build through a Continuous Integration environment. You want to speed up builds and take advantage of build caching.
Where should the most frequently changed part of a Docker image be placed in a Dockerfile?

A. at the bottom of the Dockerfile
B. after the FROM directive
C. in the ENTRYPOINT directive
D. at the top of the Dockerfile

Answer: A

NEW QUESTION # 36
Will This command list all nodes in a swarm cluster from the command line?
Solution. 'docker swarm nodes'

A. No
B. Yes

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 # 37
Is this the purpose of Docker Content Trust?
Solution. Sign and verify image tags.

A. Yes
B. No

Answer: A

Explanation:
= The purpose of Docker Content Trust is to sign and verify image tags using digital signatures for data sent to and received from remote Docker registries12. This allows client-side or runtime verification of the integrity and publisher of specific image tags, ensuring the provenance and security of container images34. References:
* 1: Content trust in Docker | Docker Docs
* 2: Docker Content Trust: What It Is and How It Secures Container Images
* 3: Docker Content Trust in Azure Pipelines - Azure Pipelines
* 4: 4.5 Ensure Content trust for Docker is Enabled | Tenable

NEW QUESTION # 38
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100% Pass Docker - DCA - Docker Certified Associate (DCA) Exam Pass-Sure Preparation Store

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Docker Certified Associate (DCA) Exam Sample Questions (Q33-Q38):

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