Q. What is the purpose of the `FROM` instruction in a Dockerfile?

  • (A) To define environment variables
  • (B) To specify the base image
  • (C) To expose ports
  • (D) To start a container
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✅ Correct Answer: (B) To specify the base image
Explanation: `FROM` sets the base image for the Docker image being built.

Published by Mr. Dubey ⭐ 111.54K Points at 24-Jul-2025 07:07 am in Docker

Explanation by: Mr. Dubey
`FROM` sets the base image for the Docker image being built.

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