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Docker Exam DCA Topic 4 Question 101 Discussion

Actual exam question for Docker's Docker Certified Associate Exam exam
Question #: 101
Topic #: 4
[All Docker Certified Associate Exam Questions]

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.

Show Suggested Answer Hide Answer
Suggested Answer: B

: = 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.Reference:

Make a tag immutable | Docker Docs


by Charlene at Sep 16, 2024, 06:36 AM

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Allene
2 days ago
Keeping a backup copy? Sounds like too much work. I'd rather just use a different image tag and call it a day. Less hassle, you know?
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Teresita
4 days ago
Wait, so they want me to just back it up somewhere else? That's like putting a lock on my front door but leaving the back door wide open. I don't think that's the best solution here.
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Linn
10 days ago
A) Yes, keeping a backup copy seems like a practical solution to avoid losing important images.
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Catrice
25 days ago
Nah, that's not gonna work. If I wanted to stop my 'nginx:latest' from getting overwritten, I'd just lock the repo down and control who has push access. Easy peasy!
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Laurene
7 days ago
No
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Gerald
16 days ago
Yes
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Rolland
26 days ago
B) No, I think there might be a better way to prevent image overwriting.
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Stephanie
27 days ago
A) Yes, that sounds like a good idea to prevent overwriting.
upvoted 0 times
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