Docker MCQs with answers Page - 8

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 of the following is used to share a volume between services in Docker Compose?

  • (A) SharedVolumes
  • (B) volumes_from
  • (C) link
  • (D) external

A

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Q. Which command is used to run a one-off command in a new container in Docker Compose?

  • (A) docker-compose exec
  • (B) docker-compose run
  • (C) docker-compose start
  • (D) docker-compose init

A

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Q. How can you set a specific Docker Compose service to always restart on failure?

  • (A) restart: on-failure
  • (B) restart: always
  • (C) restart: on-crash
  • (D) restart: never

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Q. What is the purpose of the 'links' key in Docker Compose?

  • (A) To define dependencies between services
  • (B) To define network settings
  • (C) To set environment variables
  • (D) To scale services

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Q. Which command is used to view the current Docker Compose configuration?

  • (A) docker-compose config
  • (B) docker-compose view
  • (C) docker-compose show
  • (D) docker-compose status

A

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Q. How can you set Docker Compose to automatically remove containers after they stop?

  • (A) Using 'remove: true' in the Compose file
  • (B) Using 'docker-compose rm -f'
  • (C) Using 'docker-compose down --remove'
  • (D) Using 'restart: always' in the Compose file

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Q. What is the primary purpose of Docker?

  • (A) To deploy applications
  • (B) To manage system configurations
  • (C) To automate software development
  • (D) To provide a containerized environment for applications

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Q. What is a Docker image?

  • (A) A running instance of a Docker container
  • (B) A blueprint used to create Docker containers
  • (C) A file containing Docker configuration settings
  • (D) A Docker registry

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

  • (A) docker build
  • (B) docker create
  • (C) docker run
  • (D) docker image build

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Q. How do you list all Docker containers, including stopped ones?

  • (A) docker ps -a
  • (B) docker containers -a
  • (C) docker list containers
  • (D) docker ps -all

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