Docker MCQs with answers Page - 13

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 Docker command is used to create a new Docker network?

  • (A) docker network create
  • (B) docker network init
  • (C) docker network add
  • (D) docker create network

A

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Q. How can you scale a service in Docker Compose?

  • (A) Using the 'scale' option
  • (B) By modifying the service definition in the Compose file
  • (C) Using the 'docker-compose scale' command
  • (D) All of the above

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Q. What is the 'docker-compose down' command used for?

  • (A) To bring down a Docker container
  • (B) To stop and remove containers, networks, and volumes
  • (C) To view running services
  • (D) To build the Compose file

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Q. Which of the following Docker commands is used to pull an image from a remote registry?

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

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Q. What is the default command that Docker runs in a container if no command is specified?

  • (A) CMD
  • (B) ENTRYPOINT
  • (C) RUN
  • (D) BOTH CMD AND ENTRYPOINT

A

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Q. Which command is used to view Docker system-wide information?

  • (A) docker info
  • (B) docker details
  • (C) docker system info
  • (D) docker status

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Q. What is the main benefit of using Docker over virtual machines?

  • (A) Docker is faster and more lightweight
  • (B) Docker provides better isolation than virtual machines
  • (C) Docker is not dependent on hardware resources
  • (D) Docker can run on multiple operating systems without issue

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Q. Which command is used to push a Docker image to Docker Hub?

  • (A) docker push
  • (B) docker upload
  • (C) docker commit
  • (D) docker send

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Q. What does the 'docker exec' command do?

  • (A) Executes a command inside a running container
  • (B) Executes a new container
  • (C) Executes an image build
  • (D) Executes a Docker file

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Q. What does the '--detach' or '-d' flag do when running 'docker run'?

  • (A) Runs the container in background mode
  • (B) Runs the container in interactive mode
  • (C) Assigns a random name to the container
  • (D) Forces the container to restart automatically

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