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  1. Home
  2. Docker Certification
  3. DCA Exam
  4. Docker.DCA.v2024-05-09.q158 Dumps
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Question 36

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

Correct Answer: B
insert code

Question 37

Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: seccomp

Correct Answer: B
Explanation
Using seccomp does not limit a Docker container's access to host resources, such as CPU or memory.
Seccomp is a Linux kernel facility that allows filtering system calls made by a process. It can be used to enhance the security and isolation of a container by restricting its access to certain system calls. However, it does not affect the resource allocation or consumption of a container. References:
https://docs.docker.com/engine/security/seccomp/,
https://www.kernel.org/doc/html/v4.14/userspace-api/seccomp_filter.html
insert code

Question 38

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'.

Correct Answer: B
Explanation
Tagging the image with 'nginx:immutable' 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. Tagging the image with
'nginx:immutable' will only create a new tag for the image, but it will not prevent the original tag from being overwritten. To prevent an image tag from being overwritten in Docker Trusted Registry, the user can use the DTR web UI to make the tag immutable1. This will prevent anyone from pushing a new image with the same tag, even if they have push access to the repository1. Alternatively, the user can also use the DTR API to make the tag immutable2. References: Prevent tags from being overwritten), DTR API reference)
insert code

Question 39

Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: mnt

Correct Answer: A
insert code

Question 40

Does this command display all the pods in the cluster that are labeled as 'env: development'?
Solution: 'kubectl get pods -I env=development'

Correct Answer: A
insert code
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