QUIZ DOCKER - AUTHORITATIVE ONLINE DCA VERSION

Quiz Docker - Authoritative Online DCA Version

Quiz Docker - Authoritative Online DCA Version

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Have similar features to the desktop-based exam simulator contains actual Docker DCA Practice Test that will help you grasp every topic Compatible with every operating system such as Mac, Linus, iOS, Windows, and Android Works properly on Google chrome, Internet explorer, Microsoft Edge, Opera, etc. Does not require any special plugins to operate creates an exam atmosphere making candidates more confident. Keep track of your progress with self-analysis Points out mistakes at the end of every attempt.

Docker Certified Associate (DCA) Exam Sample Questions (Q173-Q178):

NEW QUESTION # 173
Is this an advantage of multi-stage builds?
Solution: better caching when building Docker images

  • A. No
  • B. Yes

Answer: A

Explanation:
Explanation
Better caching when building Docker images is not an advantage of multi-stage builds. Multi-stage builds are a feature that allows you to use multiple FROM statements in a single Dockerfile. Each FROM statement begins a new stage of the build, with its own base image and instructions. You can selectively copy artifacts from one stage to another, leaving behind everything you don't want in the final image. The advantages of multi-stage builds are:
Reducing the size of the final image by removing unnecessary dependencies or intermediate files.
Improving the security of the final image by minimizing the attack surface and avoiding leaking secrets.
Simplifying the development workflow by using different tools or environments in different stages.
Better caching when building Docker images is not an advantage of multi-stage builds, as it depends on other factors, such as the order and content of the instructions in each stage, the availability and freshness of the base images and intermediate layers, and the use of build arguments or environment variables that may invalidate the cache. References:
https://docs.docker.com/develop/develop-images/multistage-build/,
https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache


NEW QUESTION # 174
A user is having problems running Docker. Which of the following will start Docker in debug mode?

  • A. Set the debug key to true in the 'daemon.json' file.
  • B. Set the logging key to debug in the 'daemon.json' file.
  • C. Start the 'dockerd' process manually with the '--logging' flag set to debug
  • D. Start the 'dockerd' process manually with the '--raw-logs' flag set to debug

Answer: A


NEW QUESTION # 175
Is this a supported user authentication method for Universal Control Plane?
Solution. LDAP

  • A. Yes
  • B. No

Answer: A

Explanation:
= LDAP is a supported user authentication method for Universal Control Plane (UCP). UCP has its own built-in authentication mechanism and integrates with LDAP and Active Directory. It also supports Role Based Access Control (RBAC) and Docker Content Trust. UCP allows you to configure LDAP as an authentication method and connect it to your LDAP server. You need to provide the LDAP URL, the base DN, the bind DN and password, and the user and group search settings12. References:
* SAML | Docker Docs
* Universal Control Plane overview | dockerlabs


NEW QUESTION # 176
Is this a function of UCP?
Solution: enforces the deployment of signed images to the cluster

  • A. Yes
  • B. No

Answer: A

Explanation:
Explanation
Enforcing the deployment of signed images to the cluster is a function of UCP. UCP supports image signing and verification using Docker Content Trust, which is a feature that provides the ability to use digital signatures for data sent to and received from remote Docker registries. UCP allows you to configure a policy that requires all images deployed to the cluster to be signed by a trusted authority. This way, you can ensure that only authorized and verified images are used in your applications. References:
https://docs.docker.com/ee/ucp/admin/configure/run-only-the-images-you-trust/,
https://docs.docker.com/engine/security/trust/


NEW QUESTION # 177
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: user authorization to the Docker API

  • A. No
  • B. Yes

Answer: A


NEW QUESTION # 178
......

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