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Docker DCA Exam - Topic 5 Question 55 Discussion

Actual exam question for Docker's DCA exam
Question #: 55
Topic #: 5
[All DCA Questions]

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?

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Suggested Answer: A

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Reita
4 months ago
I’m surprised this isn’t more common knowledge!
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Fausto
4 months ago
Definitely after the FROM directive, that’s where it goes!
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Natalie
4 months ago
Wait, are you sure? I thought it was better at the top.
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Alishia
4 months ago
Totally agree, that’s the best practice.
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Glory
4 months ago
It should be at the bottom of the Dockerfile for caching!
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Blair
5 months ago
I’m a bit confused; I thought the ENTRYPOINT directive was for specifying the command to run, not for caching purposes.
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Rory
5 months ago
I practiced a similar question, and I think it was suggested to put the frequently changed parts after the FROM directive to optimize caching.
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Catrice
5 months ago
I remember something about caching layers, and I think the most frequently changed parts should go at the bottom to avoid invalidating the cache.
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Virgie
5 months ago
I’m not entirely sure, but I feel like it might be better to place them at the top so that the base layers can be cached effectively.
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Rupert
5 months ago
I think I've got a handle on this. The key is to understand the difference between the two Predicate objects and how they're being combined in the stream() method. I'll work through it carefully and try to identify the correct answer.
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Devorah
5 months ago
I remember a practice question where we had to evaluate URLs in an email. I think checking if the email body contains a URL might be one of the right answers.
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Jaclyn
5 months ago
This looks like a straightforward Salesforce automation question. I think the key is to identify the specific requirements and match them to the appropriate Salesforce tools.
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