Docker MCQs with answers Page - 3

Here, you will find a collection of MCQ questions on Docker. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which command is used to pull an image from Docker Hub?

  • (A) docker pull
  • (B) docker fetch
  • (C) docker download
  • (D) docker get

A

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

  • (A) To create a persistent data volume
  • (B) To mount a host directory into the container
  • (C) To define a network volume
  • (D) To specify a shared volume between containers

A

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Q. Which command is used to list all Docker images on the local machine?

  • (A) docker images
  • (B) docker list
  • (C) docker ps
  • (D) docker ls

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

  • (A) To set the working directory for subsequent instructions
  • (B) To define the user for running commands
  • (C) To specify the base image
  • (D) To copy files into the container

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Q. Which command is used to remove a Docker image?

  • (A) docker rmi
  • (B) docker remove
  • (C) docker delete
  • (D) docker erase

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

  • (A) To copy files from the host to the container
  • (B) To copy files between containers
  • (C) To copy files from the container to the host
  • (D) To create a backup of the container

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Q. Which command is used to start a stopped Docker container?

  • (A) docker start
  • (B) docker run
  • (C) docker create
  • (D) docker launch

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

  • (A) To set environment variables
  • (B) To define the base image
  • (C) To specify the working directory
  • (D) To copy files into the container

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Q. Which command is used to inspect a Docker container?

  • (A) docker inspect
  • (B) docker view
  • (C) docker logs
  • (D) docker info

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

  • (A) To define the user for running commands
  • (B) To set environment variables
  • (C) To specify the working directory
  • (D) To copy files into the container

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