702.3 Container Image Building (weight: 5) DEVOPS-TOOLS-ENGINEER Practice Questions (Page 6)

Questions 26–28

1. 26foundation · easy

   What is the primary benefit of using a multi-stage build?

   • AIt speeds up the build by parallelizing stages
   • BIt enables the use of different base images in the same build
   • CIt reduces the final image size by separating build-time dependencies from runtime artifacts
   • DIt allows multiple containers to run from a single image
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   Which instruction order in a Dockerfile is most likely to maximize layer caching?

   • ACOPY everything at the beginning
   • BRUN apt-get update && apt-get install in separate RUN instructions
   • CRUN apt-get install first, then COPY source code
   • DCOPY source code first, then RUN apt-get install
   Reveal Solution Discussion Select an answer first
3. 28foundation · easy

   Why should secrets not be included in a Dockerfile?

   • AThey are automatically encrypted
   • BThey prevent the image from being pushed to a registry
   • CThey are visible in the image history and can be extracted by anyone with access to the image
   • DThey increase the image size
   Reveal Solution Discussion Select an answer first