Docker MCQs with answers Page - 19

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Q. What is the purpose of the 'docker-compose down' command?

  • (A) To stop and remove containers, networks, and volumes defined in a docker-compose.yml file
  • (B) To build Docker images
  • (C) To push images to Docker Hub
  • (D) To list running containers
💬 Discuss
✅ Correct Answer: (A) To stop and remove containers, networks, and volumes defined in a docker-compose.yml file
Explanation: The 'docker-compose down' command stops and removes containers, networks, and volumes defined in the 'docker-compose.yml' file.

Published by Ranjeet ⭐ 34.60K Points at 13-Feb-2025 10:03 pm in Docker

Q. Which command is used to list all Docker volumes?

  • (A) docker volume ls
  • (B) docker list volumes
  • (C) docker inspect volumes
  • (D) docker volumes
💬 Discuss
✅ Correct Answer: (A) docker volume ls
Explanation: The 'docker volume ls' command lists all Docker volumes on the host.

Published by Priyanka Tomar ⭐ 35.28K Points at 13-Feb-2025 10:03 pm in Docker

Q. What is the purpose of the 'docker save' command?

  • (A) To save a Docker image as a tar archive
  • (B) To save a container's state
  • (C) To back up Docker volumes
  • (D) To export Docker logs
💬 Discuss
✅ Correct Answer: (A) To save a Docker image as a tar archive
Explanation: The 'docker save' command saves a Docker image as a tar archive. For example, 'docker save -o my_image.tar my_image'.

Published by Vinay ⭐ 28.75K Points at 13-Feb-2025 10:03 pm in Docker

Q. Which command is used to load a Docker image from a tar archive?

  • (A) docker load
  • (B) docker import
  • (C) docker restore
  • (D) docker extract
💬 Discuss
✅ Correct Answer: (A) docker load
Explanation: The 'docker load' command loads a Docker image from a tar archive. For example, 'docker load -i my_image.tar'.

Published by Praveen Singh ⭐ 36.81K Points at 13-Feb-2025 10:03 pm in Docker

Q. What is the purpose of the 'docker-compose build' command?

  • (A) To start containers defined in a docker-compose.yml file
  • (B) To build Docker images defined in a docker-compose.yml file
  • (C) To push images to Docker Hub
  • (D) To stop running containers
💬 Discuss
✅ Correct Answer: (B) To build Docker images defined in a docker-compose.yml file
Explanation: The 'docker-compose build' command builds Docker images as defined in the 'docker-compose.yml' file.

Published by Ram Sharma ⭐ 193.88K Points at 13-Feb-2025 10:03 pm in Docker

Q. Which command is used to view detailed information about a Docker volume?

  • (A) docker volume inspect
  • (B) docker inspect volume
  • (C) docker volume info
  • (D) docker volume details
💬 Discuss
✅ Correct Answer: (A) docker volume inspect
Explanation: The 'docker volume inspect' command provides detailed information about a Docker volume. For example, 'docker volume inspect my_volume'.

Published by Praveen Singh ⭐ 36.81K Points at 13-Feb-2025 10:03 pm in Docker

Q. What is the purpose of the 'docker-compose logs' command?

  • (A) To view logs of containers defined in a docker-compose.yml file
  • (B) To list all Docker images
  • (C) To inspect Docker networks
  • (D) To monitor Docker Hub activity
💬 Discuss
✅ Correct Answer: (A) To view logs of containers defined in a docker-compose.yml file
Explanation: The 'docker-compose logs' command displays logs for all containers defined in the 'docker-compose.yml' file.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:03 pm in Docker

Q. What is the purpose of Docker containers?

  • (A) To isolate applications and their dependencies from the host system
  • (B) To manage the Docker host
  • (C) To store Docker images
  • (D) To create virtual machines
💬 Discuss
✅ Correct Answer: (A) To isolate applications and their dependencies from the host system
Explanation: Docker containers are used to isolate applications and their dependencies from the host system, making them portable and consistent across different environments.

Published by Shiva Ram ⭐ 30.44K Points at 13-Feb-2025 10:04 pm in Docker

Q. Which Docker command is used to remove all stopped containers?

  • (A) docker prune
  • (B) docker rm -f $(docker ps -a -q)
  • (C) docker container rm $(docker ps -a -q)
  • (D) docker remove -a
💬 Discuss
✅ Correct Answer: (C) docker container rm $(docker ps -a -q)
Explanation: 'docker container rm $(docker ps -a -q)' removes all stopped containers.

Published by Ranjeet ⭐ 34.60K Points at 13-Feb-2025 10:04 pm in Docker

Q. Which Docker command is used to show running containers?

  • (A) docker ps
  • (B) docker containers
  • (C) docker list containers
  • (D) docker list
💬 Discuss
✅ Correct Answer: (A) docker ps
Explanation: 'docker ps' is used to list all running containers.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:04 pm in Docker

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