Docker MCQs with answers Page - 24

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. What is a 'Docker network'?

  • (A) A connection between containers for network communication
  • (B) A storage solution for Docker containers
  • (C) A group of Docker images
  • (D) A monitoring tool for Docker containers
💬 Discuss
✅ Correct Answer: (A) A connection between containers for network communication
Explanation: A Docker network allows containers to communicate with each other, either within the same host or across multiple hosts.

Published by Vinay ⭐ 28.75K Points at 13-Feb-2025 10:07 pm in Docker

Q. Which command is used to get detailed information about a running Docker container?

  • (A) docker inspect container_name
  • (B) docker container details container_name
  • (C) docker stats container_name
  • (D) docker show container_name
💬 Discuss
✅ Correct Answer: (A) docker inspect container_name
Explanation: 'docker inspect container_name' provides detailed information about a running container.

Published by Rakesh Kumar ⭐ 28.44K Points at 13-Feb-2025 10:07 pm in Docker

Q. Which of the following options is true about Docker volumes?

  • (A) Volumes are used to store data generated by and used by Docker containers
  • (B) Volumes are ephemeral and cannot be shared between containers
  • (C) Volumes only work with Linux-based containers
  • (D) Volumes are used to store Docker images
💬 Discuss
✅ Correct Answer: (A) Volumes are used to store data generated by and used by Docker containers
Explanation: Docker volumes are used to persist data generated and used by Docker containers, and they can be shared between containers.

Published by Vikash Gupta ⭐ 33.56K Points at 13-Feb-2025 10:07 pm in Docker

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

  • (A) Creates a new Docker image from a Dockerfile
  • (B) Starts a container from an existing image
  • (C) Lists all available Docker images
  • (D) Removes a Docker image
💬 Discuss
✅ Correct Answer: (A) Creates a new Docker image from a Dockerfile
Explanation: 'docker build' is used to create a new Docker image from a Dockerfile.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:07 pm in Docker

Q. Which of the following is a valid Docker command to list all stopped containers?

  • (A) docker ps -a
  • (B) docker containers --stopped
  • (C) docker ps --stopped
  • (D) docker list stopped
💬 Discuss
✅ Correct Answer: (A) docker ps -a
Explanation: 'docker ps -a' lists all containers, including stopped ones.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:07 pm in Docker

Q. Which of the following commands will remove a Docker image?

  • (A) docker rmi image_name
  • (B) docker remove image_name
  • (C) docker image delete image_name
  • (D) docker rm image_name
💬 Discuss
✅ Correct Answer: (A) docker rmi image_name
Explanation: 'docker rmi image_name' is used to remove a Docker image.

Published by Priyanka Tomar ⭐ 35.28K Points at 13-Feb-2025 10:07 pm in Docker

Q. What is a Docker 'Dockerfile'?

  • (A) A configuration file used to build a Docker image
  • (B) A file that defines the environment variables for Docker containers
  • (C) A file used to orchestrate containers in Docker Swarm
  • (D) A file used to manage Docker volumes
💬 Discuss
✅ Correct Answer: (A) A configuration file used to build a Docker image
Explanation: A Dockerfile is a script containing a series of instructions on how to build a Docker image.

Published by Ram Sharma ⭐ 193.88K Points at 13-Feb-2025 10:07 pm in Docker

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

  • (A) Runs a command inside a running container
  • (B) Starts a new container
  • (C) Stops a running container
  • (D) Removes a container
💬 Discuss
✅ Correct Answer: (A) Runs a command inside a running container
Explanation: 'docker exec' is used to run commands inside a running container.

Published by Vinay ⭐ 28.75K Points at 13-Feb-2025 10:07 pm in Docker

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

  • (A) docker stop container_name
  • (B) docker kill container_name
  • (C) docker terminate container_name
  • (D) docker halt container_name
💬 Discuss
✅ Correct Answer: (A) docker stop container_name
Explanation: 'docker stop container_name' stops a running Docker container.

Published by Ranjeet ⭐ 34.60K Points at 13-Feb-2025 10:07 pm in Docker

Q. What is the role of Docker's 'CMD' instruction in a Dockerfile?

  • (A) To set the default command to be executed when a container starts
  • (B) To specify the environment variables
  • (C) To specify the base image for the container
  • (D) To expose container ports
💬 Discuss
✅ Correct Answer: (A) To set the default command to be executed when a container starts
Explanation: 'CMD' specifies the default command to be executed when the container starts.

Published by Gopal Sharma ⭐ 38.32K Points at 13-Feb-2025 10:07 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