Docker MCQs with answers Page - 30

Dear candidates you will find MCQ questions of Docker here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

Q. Which command is used to view the Docker container's mounted volumes?

  • (A) docker inspect
  • (B) docker volume ls
  • (C) docker logs
  • (D) docker top
💬 Discuss
✅ Correct Answer: (A) docker inspect
Explanation: The 'docker inspect' command provides detailed information about a container, including its mounted volumes.

Published by Rakesh Kumar ⭐ 28.44K Points at 13-Feb-2025 10:13 pm in Docker

Q. What is the purpose of the 'docker-compose config --no-interpolate' command?

  • (A) To display the configuration without interpolating environment variables
  • (B) To validate the docker-compose.yml file
  • (C) To display the configuration of services
  • (D) To list all containers
💬 Discuss
✅ Correct Answer: (A) To display the configuration without interpolating environment variables
Explanation: The 'docker-compose config --no-interpolate' command displays the configuration without interpolating environment variables.

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

Q. Which command is used to view the Docker container's port mappings?

  • (A) docker inspect
  • (B) docker port
  • (C) docker logs
  • (D) docker top
💬 Discuss
✅ Correct Answer: (B) docker port
Explanation: The 'docker port' command displays the port mappings for a specific container. For example, 'docker port <container_id>'.

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

Q. What is the purpose of the 'docker-compose config --resolve-image-digests' command?

  • (A) To display the configuration with resolved image digests
  • (B) To validate the docker-compose.yml file
  • (C) To display the configuration of services
  • (D) To list all containers
💬 Discuss
✅ Correct Answer: (A) To display the configuration with resolved image digests
Explanation: The 'docker-compose config --resolve-image-digests' command displays the configuration with resolved image digests.

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

Q. Which command is used to view the Docker container's restart policy?

  • (A) docker inspect
  • (B) docker restart
  • (C) docker logs
  • (D) docker top
💬 Discuss
✅ Correct Answer: (A) docker inspect
Explanation: The 'docker inspect' command provides detailed information about a container, including its restart policy.

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

Q. Which of the following is used to give a container access to a specific port?

  • (A) docker expose container_name
  • (B) docker map port container_name
  • (C) docker run -p host_port:container_port
  • (D) docker connect port container_name
💬 Discuss
✅ Correct Answer: (C) docker run -p host_port:container_port
Explanation: 'docker run -p host_port:container_port' is used to bind a container's internal port to a port on the host system.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:14 pm in Docker

Q. Which of the following options is correct regarding Docker layers?

  • (A) Each instruction in a Dockerfile creates a new layer in the Docker image
  • (B) Docker images cannot have layers
  • (C) Docker layers are temporary and discarded after the image is built
  • (D) Docker layers are used to manage the runtime of containers
💬 Discuss
✅ Correct Answer: (A) Each instruction in a Dockerfile creates a new layer in the Docker image
Explanation: Each instruction in a Dockerfile (e.g., RUN, COPY, etc.) creates a new layer in the Docker image, which helps in reusability and caching.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:14 pm in Docker

Q. Which of the following commands can be used to list the running Docker containers?

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

Published by Vikash Gupta ⭐ 33.56K Points at 13-Feb-2025 10:14 pm in Docker

Q. Which of the following is true about Docker Swarm?

  • (A) Docker Swarm is a tool for managing multi-container applications in a single host
  • (B) Docker Swarm is used for orchestrating Docker containers across a cluster of machines
  • (C) Docker Swarm only works in Docker Desktop environments
  • (D) Docker Swarm does not support container scaling
💬 Discuss
✅ Correct Answer: (B) Docker Swarm is used for orchestrating Docker containers across a cluster of machines
Explanation: Docker Swarm is a native Docker orchestration tool that allows the management of Docker containers across a cluster of machines.

Published by Vinay ⭐ 28.75K Points at 13-Feb-2025 10:14 pm in Docker

Q. Which of the following Docker commands is used to remove unused images?

  • (A) docker clean -a
  • (B) docker rmi unused
  • (C) docker image prune
  • (D) docker remove image
💬 Discuss
✅ Correct Answer: (C) docker image prune
Explanation: 'docker image prune' is used to remove unused Docker images.

Published by Ram Sharma ⭐ 193.88K Points at 13-Feb-2025 10:14 pm in Docker

Programming Categories

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play