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What output difference will you see when running DOCKER_BUILDKIT=1 docker build . compared to a normal build?

medium📝 Command Output Q13 of 15
Docker - Image Optimization
What output difference will you see when running DOCKER_BUILDKIT=1 docker build . compared to a normal build?
AMore detailed and clearer build step output
BNo output is shown during the build
CBuild output is shown in JSON format only
DBuild output is slower and less informative
Step-by-Step Solution
Solution:

  1. Step 1: Understand BuildKit output changes

    BuildKit provides clearer, more detailed output with progress bars and parallel step info.

  2. Step 2: Compare output options

    More detailed and clearer build step output matches this behavior. Options B and D are incorrect because output is shown and faster. Build output is shown in JSON format only is wrong because JSON output is not default.

  3. Final Answer:

    More detailed and clearer build step output -> Option A

  4. Quick Check:

    BuildKit output = clearer and detailed [OK]
Quick Trick: BuildKit shows clearer, detailed build progress output [OK]
Common Mistakes:
  • Expecting no output during build
  • Thinking output is JSON by default
  • Assuming BuildKit slows down output

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